Apparatus for supplying luminous elements with energy and method of powering luminous elements

FIELD: physics.

SUBSTANCE: invention relates to a device for powering luminous elements, having an energy supply unit (12), a first luminous element (30), having a first colour, preferably white, a second and a third luminous element (34, 38), having a second and a third colour, preferably for adjusting the colour of the first luminous element, and a controlled switch (42), connected in series to the said third luminous element (38). Said serial connection from the said third luminous element (38) and said switch is connected in parallel to the said second luminous element (34). The energy supply device is characterised by that the said energy supply unit (12) has a third and a second output (20, 22). The said first luminous element (30) is connected to the said first lead (20) and the said second and third luminous elements (34, 38) are connected to the said second led (22), the said energy supply unit (12) is configured to provide controlled, preferably independently controlled, output signals on the said first and second leads (20, 22), and the said second and third luminous elements (34, 38) and the said energy supply unit (12) are configured in such a way that, the said third luminous element (38) emits light when the switch (42) is closed. The invention also relates to a method of powering the luminous elements.

EFFECT: fewer switches.

20 cl, 4 dwg

 

The present invention relates to a device power supply of the light elements containing block energy supply, the first luminous element having a first color, preferably white, second and third light elements, with the second and third colors, it is preferable to adjust the color of the first light element, and managed key connected to the specified third light element. The invention also relates to a method for supplying power to the lighting elements, it is preferable to have different colors.

The device power supply, the same as mentioned above is known, for example, from application No. 2003/0112229 A1 in the U.S. patent. This document describes the causative agent for color LEDs. The exciter includes a serial connection of the first led and key and a second serial connection of the two LEDs, both the serial connection are connected in parallel. In addition, the exciter includes a third led, which is included between the input and output lines of the circuit. Finally, the inductor is connected in series with the two above-mentioned serial connections, so that the coil inductance and both series connection is connected in parallel to the third led.

One of the disadvantages of the scheme of this type lies in the fact that h is on the first and second LEDs can emit light statically, if the key is open. The first and second LEDs can be controlled independently from each other, so that the colors obtained by color mixing of the first and second LEDs is limited.

In General, light elements in the form of LEDs are becoming increasingly important in various areas where the work of lighting installations. Since there are LEDs of different colors, particularly red, blue and green, you can get any color in the color triangle formed by the main color, thereby covering a certain area overall color using a blending operation. For issuing a specified length of contribution from each of the primary colors, for example red, blue and green, you must have a special scheme of the pathogen or a special energy source.

In addition, the led circuit is particularly suitable for applications where the primary color (e.g. white) must be set in certain directions (cold, warm). It is expected that a large part of the sales of led lighting systems will be in lamp white light with reduced color features.

In known circuits pathogens use different units of power supplies or power sources for each led so that you can sum specified powerfully shall be to the appropriate LEDs to obtain the required brightness.

However, the use of multiple energy sources is expensive.

For efficiency reasons, the so-called switching power supplies are widely used for excitation LEDs. Usually all the LEDs connected to some means of excitation (i.e. the keys), which allows you to adjust the current flowing through the individual LEDs. As a result, for each led needs its own key. Moreover, it should be possible to regulate the current of each led (that is, fixing it at a nominal value or of offering it to a specific value, which may be a function of time).

Given the above, it is also desirable to have a device power supply and the circuit of the exciter having a reduced number of keys to control the at least three LEDs required to obtain specified color using LEDs.

Therefore, the present invention is to create a device power supply of the light elements mentioned above, which has a minimum number of keys and thus has no limitations on the achievable color gamut.

This problem can be solved, for example, the above-mentioned device power supply, wherein said power supply energy keepermy and second outputs, when the first luminous element is connected with a first output and a specified second and third light elements are connected with the specified second output, and managed key connected to the specified third light element, with the specified block power supply configured to provide a regulated output signal at the specified first and second specified outputs, and these second and third light elements and the specified power supply energy is made so that the third luminous element emits light when the key is closed. Preferably, the output signals could be adjusted independently. Alternatively, the output signals can be adjusted in a specified relationship to each other.

In accordance with the present invention the power supply energy provides two regulated output signal to control at least three different light elements. One of the three light elements can be continuously supplied with power by using the first output signal, while the second and third light elements can be supplied with power via the second output signal. By using a single key power of the second output signal can be distributed between the second and third light elements. When the key opens the, the second luminous element is supplied with the full power of the second output signal. When the key is closed, the power of the second output signal is partially or fully accepted the third light element.

Therefore, in the device power supply of the invention, only one key is used to control three light elements. This helps to reduce the overall cost of energy supply. In addition, if the first luminous element is the element that contributes most to the overall light output and therefore, as you might expect, consumes the most power, the loss can be reduced, because the key is not needed. One second output block power supply is used in conjunction with the second and third light elements, and they managed only one key, which also reduces the cost.

In the preferred implementation of the second and third light elements are made so that only the third luminous element, not the second luminous element emits light when the key is closed.

That is, in other words, the power supplied from the second output of the power supply energy is divided between the second and third light elements, and fully supplied to the third light element. This can be accomplished, for example, using optical elements having different what s working voltage, while working voltage of the third light element is lower than the operating voltage of the second light element.

This measure provides the advantage that the second and third light elements can be controlled independently by using only one key. In addition, you can mix any color is possible in the presence of both light elements, so that the overall color scheme obtained in the case of three light elements, optionally expanded compared with the solution in which the second luminous element always takes at least a part of power, regardless of the state (on state or off state) of the key.

In a further preferred implementation, at least one of these light elements comprises at least one light emitting diode (LED).

The use of LEDs as light elements gives the advantage that the number of applications is possible. In particular, if the first luminous element contains the LEDs white light as the predominant source of light and the second and third light elements contain red and blue lights, respectively, the user can set a color point of the device from cold white to warm white. However, the device supplies the energy izaberete the Oia can also work together with red, green and blue LEDs with obtaining any color through individual control of up to three lighting elements.

In addition, it should be clear that the light elements can contain one or more LEDs connected in series, or, of course, organic LEDs, or a combination of them. Further, the number of LEDs or organic LEDs can be selected independently for each of the light elements, whereas the choice of the number of LEDs in the second optical element relative to the number of LEDs in the third light element may exert an influence on the division of the current supplied from the second output of the energy source. Finally, any other combination of LEDs and/or organic light-emitting diodes in parallel or in serial connection can also be used as light elements.

In the preferred implementation of the specified energy source includes first and second current sources attached to the first and second outputs, respectively.

This measure provides the advantage that improves the management of the second and third light elements. It should be noted that sources current flowing instead of current sources is also possible. In the General case, the energy source is configured to provide regulated the controlled currents at these outputs.

In a further preferred implementation of the power output level on the specified second output is adjusted with the key to supply the second and third light elements of different signals.

In other words, this means that from the second output is fed to the first power level (e.g., the current of the first level)when the key is closed, and the power of the second level (the current second level)when the key is open. Therefore, the power supply energy is regulated in response to the control key.

This measure provides the advantage that the control range of the second and third elements can be extended so that the total control device is improved.

In a further preferred implementation of the specified block power supply contains two subunits pulsed power sources.

This measure provides the advantage that the power supply unit of this type is proved preferable, especially in terms of energy consumption and power control.

In a further preferred implementation, at least one optical sensor is provided for measuring light characteristics, for example, but without limiting them, flow, color, peak wavelength, color rendering index of light elements, and to transmit a control signal to counter ller, made with adjustable brightness light elements. More preferably, the additional sensor, namely the temperature sensor was provided to protect the system from overheating and to compensate for changes in light characteristics of light elements at different temperatures.

In a further preferred implementation of the at least one stored energy element is provided and attached to at least one of these second and third light elements. More preferably, that was there first storing energy element, preferably a capacitor, preferably connected in parallel and attached to the specified second light element was provided in the second storing energy element, preferably a capacitor, preferably connected in parallel and attached to the specified third light element, and was aimed at separating element, preferably a diode, and given the specified first and second storing energy elements. Preferably, the separating element has been included in series with the parallel connection of the specified first storing energy element and the second lighting element.

This measure provides the advantage that the light elements can eat Zap the hay energy over periods of time, in which the corresponding luminous element does not take power from the second output unit of energy supplied. For example, when the key is closed, the capacitor parallel to the third light element is charged to store energy, and a capacitor parallel to the second light element is discharged through the light element urging the second luminous element to emit light. This mode gives particular benefits in reducing the effective value of the current light elements at a given average current. In the case of light elements on the basis of modern LEDs or organic LEDs additional light output can be provided by a given set of lighting elements, or the number of light elements can be reduced for a given required light output. As a further benefit is the reduction in the flicker of light elements, which is important for human perception.

It should be noted that storing energy elements may be capacitors, inductors, other cumulative elements, or any combination of them. The type and location of the separating element depend on the choice of storing energy elements. It should be noted that the release element may represent, for example, one or more diodes.

Our task is Vashego of the invention is also solved by a method for supplying power to the lighting elements, preferably of different colors, it is preferable to adjust the overall color of light containing phases in which:

provide the first luminous element having the first color, and supply it to the first power,

provide second and third light elements, while it is preferable that both of the light element had a different color, preferably selected to adjust the base color,

ensure the key is in series with the third light element for switching the third light element to an on state and off state, with the specified serial connection and the specified second luminous element is in parallel with,

supply these the second and third light elements of the second power

the first and second light elements and the specified second power are selected so that the third light element to emit light when the key is closed, and the second luminous element to emit light if the specified key is open.

The advantages of this method are the same as those already described in the explanation of the device of the invention, so that the applicant will refrain from repeating them in this place.

In the preferred implementation of the specified second power regulating regardless of the specified first power. However, it should be noted that this second is ewnost may also be dependent on the specified first power, there will be a fixed or adjustable with respect to these first and second capacities.

In the preferred implementation (static mode) key is kept in the same state switch and the ratio of the amplitude of the power supplied to the second or third light element to the amplitude of the power supplied to the first light element, change to achieve a desired full color.

This means that the light output of the second or third light element is added to the light output of the first light element, and therefore, the overall light output of the device can be configured between the light characteristics of the first lighting element and the second or third light element.

In a further preferred implementation (dynamic mode) key continuously switch is in its on state and off state with a particular work cycle, so as to receive the light output of the second and third light elements with mixed color.

This means that the total light output of the device depends on the light output of the first lighting element and the mixed light outputs of the second and third light elements.

In a preferred implementation, the ratio of the amplitude of the power supplied to the second or third light element to amplit the de power supplied to the first light element, change to achieve a desired full color device and the amplitude of the capacity supplied by the first subunit and the second subunit, change to achieve a given brightness.

It is also preferable to change the amplitude of the power supplied to the second and third light elements, depending on the operating cycle of the key. It is most preferable to switch the specified key is in the on state and off state of at least 50, preferably to 400 times a second and said first luminous element to provide a continuous signal power. Typically, the switching cycle is chosen so that it was sufficiently high frequency to avoid flicker to the human eye.

In a further preferred implementation of the at least one stored energy element for at least one of the second and third light elements provide for the supply of energy during time periods in which energy is not taken from the energy source, and the cycle switch is chosen so that it was sufficiently high frequency to avoid flicker to the human eye.

In contrast to the implementation mentioned above, the use of stored energy element also reduces the switching cycle is below 50 Hz without education the Oia flicker, because of the cumulative elements bring energy when the key is open. The minimum switching cycle is determined by the type storing energy of the element and its charging capacity.

Additional characteristics and advantages can be obtained from the following description and accompanying drawings.

It should be clear that the features mentioned above and those yet to be explained below can be used not only in the respective combinations shown, but also in other combinations or alone, without deviation from the scope of the present invention.

Implementation of the invention shown in the drawings and will be explained in more detail in the description below, with links to them. In the drawings:

figure 1 - structural diagram of the device power supply according to the first implementation;

figure 2 - structural diagram of the device power supply according to the second implementation;

figure 3 is a graph of color International Commission on illumination, illustrating color settings created by the device power supply of the invention in the first mode of operation; and

4 is a graph of the chromaticity of the International Commission on illumination, illustrating color settings created by the device power supply of the invention in the second mode of operation.

Figure 1 shows the block diagram of the device where the of energy, the designated position 10. Such a device 10 with the supply of energy can be used for individual control of light elements such as LEDs, organic LEDs, etc. It is especially useful in cases where the light elements have different colors, for example red, green and blue. By controlling lighting elements and, consequently, the intensity or brightness of the respective red, green and blue light can be added to any color from a wide range of colors. When one light is the dominant element and emits, for example, white light, additional light elements can be used to customize the color, that is, to change the color of a point, for example, between cool white and warm white color.

The device 10 of the energy supply, shown in figure 1, contains the block 12 of the energy supply, which is connected to an energy source such as mains voltage, the voltage of the battery or any other energy source. Unit 12 supplies energy contains the first subunit 14 energy supply and the second subunit 16 supply of energy. The first subunit is connected to the first output output 20 and the second subunit is connected to the second output to the output 22.

In the presented implementation of both subunits of the supply of energy made the AK units switching power supply, having the characteristic of current sources. This means that the output current available at output pins 20, 22, is only a weak function of the load voltage.

The device 10 of the energy supply also contains the first luminous element 30 connected between the output pin 20 and the weight 44, and the second and third light elements 34, 38, connected between the second output output 22 and the weight 44. Each luminous element 30, 34, 38 includes at least one led 32, 36, 40, which can have dierent color. For example, the led 32 of the first lighting element 30 is a white led, while the second luminous element 34 contains a blue led 36 and the third light element 38 contains a red led 40.

In the case of the present application under the led mean not only a single led, but can also mean a serial connection or parallel connection or mixed series-parallel connection of LEDs or organic LEDs. Only for reasons of simplicity, for each light element is shown with only one led.

The device 10 of the energy supply also contains the key 42, which is connected between the third light element 38 and the weight 44. The key can be controlled by a control signal. When this prefer is Ino to use semiconductor key, like the transistor, field effect transistor, etc. However, the keys of other types can also be represented. Serial connection from the third light element 38 and the key 42 is connected parallel to the second light element 34.

The control signal 56 to control key 42 is formed by the controller 50. The controller 50 may be made in the form of a dedicated integrated circuit, or any other semiconductor integrated circuits, or combinations of various integrated circuits, or a combination of discrete components, or a combination of the above.

As shown in figure 1, the controller 50 also generates control signals for the first subunit 14 energy supply and the second subunit 16 power transmitted respectively on the lines 52 and 54 of the transfer control signals. The control signals are used to control the power supplied to the respective the output pins 20, 22. In particular, regulates the current supplied to the pins 20, 22, and consequently, to the lighting elements 30, 34, 38. To a person skilled in the art it is obvious that you can use a different number of lines transmitting control signals for transmitting two control signals to the subunits of the energy supply and control signal to the key, for example, you share one line for lane is giving more than one signal or to use a transfer method, which uses more than two lines for the two signals, for example two lines for each signal.

The device 10 of the energy supply also includes an optical sensor 60, which generates a signal to the controller 50 through line 62, on the basis of the light falling on the sensor. In addition to the optical sensor 60 also includes a temperature sensor 64, and it is electrically connected to the controller 50 through line 66. The temperature sensor 64 is provided for temperature measurement device and to generate an appropriate signal, which is confirmed by the controller 50.

The device 10 of the energy supply is as follows.

Both subunits 14, 16 power supply current is supplied to the load, i.e. to the lighting elements included between the appropriate pins 20, 22 and the weight 44. The level of current is regulated by the controller 50, which generates appropriate control signals sent to the subunits. The control signals that determine the amplitude or current, are set manually by the user or automatically based on the found information or sensor signals.

From the first subunit 14 energy supply is fed to the continuous current flowing through the light element 30. In the luminous element, in this case, the led emits light. The intensity of emitted light (brightness is d) can be adjusted, changing the amplitude of the current supplied by the sub 14.

The second subunit 16 also provides current to the load, however, depending on the switch this current is divided between the second lighting element 34 and the third light element 38. If the key 42 is open, the entire current flows through the second luminous element 34, so that the third light element 38 light is not emitted.

When the switch 42 is closed, the current is divided between the two light elements 34, 38, so that both light element to emit light. The intensity of the emitted light depends on the current flowing through the elements.

In the preferred implementation of the light elements 34, 38 are chosen so that the current flows only through the third light element 38, when the switch 42 is closed. This characteristic can be realized by executing a lighting element 38 with a lower operating voltage than the operating voltage of the second lighting element 34. In this case, the entire current flows through the third light element 38 when the key is closed, due to the fact that the operating voltage at the third light element 38 is lower than the operating voltage required for the activation of the second light element 34. However, along with the working voltage in the selection of appropriate light elements 34, 38 also should be considered a typical characteristic of the light is o elements, namely, the diode characteristic.

Specialist in the art will know how to set the operating voltage of the light elements, so there is no need to describe all the possibilities. One possibility of achieving this technical effect is to use a larger number of LEDs connected in series with the second light element 34, as with the third light element 38. However, the material of the led also has an impact on the operating voltage.

Therefore, the intensity of the second and third light elements 34, 38 can be adjusted by switching key 42 is in its on state and off state in accordance with a specified duty cycle. In addition, the intensity of the second and third light elements can be adjusted using the selected amplitude of the current supplied by the second subunit 16.

If the second and third light elements have different colors such as blue and red, color settings, provide second and third light elements, you can choose the driving key. Adjusting the amplitude of the current supplied by the subunit 16, you can choose the intensity settings. Together with the predominant color of the first light element, you can adjust the color point, and full intensity.

In additional preferred R is the bench work depending on the status of key current amplitude of the second subunit 16 is changed between two values. That is, the amplitude of the current has a first value when the key is closed, and a second value when the key is open. This increases the ability of the device to the regulation, namely the range of intensities of the second and third light elements.

First, static, mode of energy supply will be described taking into account the schedule of Venosta International Commission on illumination (CIE), shown in figure 3. It is assumed that the first luminous element is neutral white NW (main color), and the second and third light elements are amber and turquoise, respectively. In addition, the key 42 is in the on state or the off state, and therefore does not switch continuously in the on state and off state.

The second and third light elements are used as colors and settings, which are on opposite sides of the base color. Mixed color formed by all the light elements can be configured in two directions, which in figure 3 is shown by arrows. To obtain the output color point CP1 or SR only one color or a configuration is used in the same time, so the key is open or closed. The setting is carried out exclusively by changing the amplitude of the power settings, which is supplied with the second is bloxom 16, relative to the power supplied to the second lighting element, the first subunit 14.

When the user changes the specified color point from one side to the other side of the base color, the key is triggered once, but the signal is pulse width modulated with a key is not supplied.

Second, the dynamic mode of operation will be described taking into account the schedule of Venosta International Commission on illumination (CIE), shown in figure 4. In this implementation it is assumed that the main color (the first luminous element) is a warm white light (WW), and the second and third light elements are blue (b) and green (G), respectively. In addition, it is assumed that the second and third light elements are made so that all the power from the second subunit 16 is supplied to the third light element, when the switch 42 is closed.

Both color and G settings are on one side of the primary colour WW (warm white). To achieve a certain output color point CP1 or SR setting is carried out in the direction of the actual color VTC1 settings. The formation of this actual color settings should be used both colors B, G, by using pulse width modulation. That is, the key 42 is continuously switched to an on state and off state at a fixed duty cycle. Assuming the save is in the direction of settings to achieve the CP1 or SR should change only the amplitude of the current settings. Can be maintained constant duty cycle.

Usually the key 42 operates with pulse width modulation. The duty cycle may depend on user input, but it can also maintain its fixed value.

In addition to the examples presented in figure 3 and figure 4, it is possible to use a different set of colors and a different order of application and operation of the device power supply according to the invention.

In the case of the described device, the energy supply can be used both color settings of the second and third light elements actually in the same time. This is possible due to the high inertia of the human eye to average the contributions of both light colors settings. When the key 42 is repeatedly closed and opened with a speed of at least 50 times per second, preferably more than about 400 times per second, both light element 34, 38 in fact, jointly create the color settings. You can reduce the switching frequency without visible flicker color due to the presence of continuously excited by a first light element 30 dominant colour.

In summary, the regulation of color settings that provide the device 10 with the supply of energy can be done in several ways:

First, the key 42 is opened and closed at the time of dost is the supply of a specific operating point. This mode is particularly useful in relation to the color points of the second and third light elements located on opposite sides of the first light element, when considering their color points in the color space, such as amber and turquoise LEDs as the second and third light element, respectively, and a white led as the first light element. In the case when the device should create a warmer light than white light from the first light element, the key is in the condition for activation of the amber led. The ratio of the power received from the first subunit 14 supplies energy to the power coming from the second subunit 16, is determined by the overall color point located between the white light from the first luminous element and a light amber color from the second light element. To tune to a cooler color you want to bring key 42 in the condition for activating the third light element 38, that is, cyan LEDs. And again, the ratio of the power received from the first subunit 14 supplies energy to the power coming from the second subunit 16, determines the resulting color point, now located between the white light from the first lighting element and the turquoise light of the rubs the light element. Of course, also possible to use a different set of colors. In this operating mode, the key status is stable, because the selected stable color output. The duty cycle for a key is not used.

Secondly, the duty cycle of the key 42 is fixed. Consequently, in the regulation of this business cycle creates a new actual color settings. Impact (intensity) color configuration is determined by the amplitude. In this way the duty cycle of the switch is not changed in accordance with a color point defined by the user.

Thirdly, if the subunit 60 energy supply can be adjusted quickly enough to the changes carried out synchronously with the switching cycle, it is also possible to set different current settings for the two time intervals. In this way the duty cycle of the switch is not changed in accordance with a color point defined by the user.

Finally, the duty cycle of the key 42 is changed to obtain a larger or smaller contribution of each color settings. This method results in the operating cycle of the key associated with a color point defined by the user.

For all modes, there is no need to have a colour point three light elements, arranged as previously described, however, the specialist in the art will notice that aspolozhena color points has an impact on the possible mixing of colors.

To improve performance, the temperature sensor can be used to protect the system from overheating and to compensate for changes in light characteristics of light elements at different temperatures.

The optical sensor 60 (e.g., flow sensors, photodiodes with filters, gauges, colors, etc. can be used for direct measurement of optical characteristics and the correction control signals supplied to the first and second sub-blocks 14, 16 energy supply.

Figure 2 shows the device 10 of the energy supply according to the second implementation. Since the structure is essentially similar to the structure of figure 1, the applicant refrains from describing the elements denoted by the same positions as in figure 1.

The difference between the device 10 of the energy supply according to figure 2 is that two capacitor 70, 72, used as storing energy elements, connected in parallel to the second light element 34 and the third light element 38, respectively. In addition, the diode 74 is connected in series with the capacitor 70.

The two capacitors 70, 72 are used to provide energy lighting element during those time periods in which the lighting elements are not supplied with power using a second subunit 16.

For example, if the key 42 is closed, the capacitor 72 is charged. the when the key 42 is opened, the energy stored in the capacitor 72 is transmitted to the third light element 38, so that it can emit light. The same thing happens for the second lighting element 34. The diode 74 is provided to prevent discharge of one capacitor to another capacitor.

Further modifications and variations of the implementations described above are possible without deviation from the scope of the present invention defined in the claims. For example, the subunit 16 may also be configured to detect the voltage on the output the output 22 and choice and jobs in response to this one from a set of saved settings.

Summing up, the present invention allows to implement the topology of the pathogen for led lamps that have a predominant color (for example, warm white), which change with the help of two complementary colors (e.g. blue and green)to change the color point (e.g., from warm white light to the cold white light). This predominant color is white, generated by the LEDs with phosphor-conversion light, with high quality color reproduction and stable color point, that is, the light power is controlled by varying the current amplitude of the exciter flowing through these diodes. Achieving the benefits of the prevailing color of the excited more effective the manner in comparison with the excitation on the basis of pulse-width modulation, which leads to improve the overall efficiency of the device. On the other hand, for the dominant colour do not need an extra key. To change the color point of the other LEDs is shared by one second output power source power, and the regulation is performed by using only one key. And in this case, costs are reduced. Because the level of current, and the current path of the LEDs that share the same output can be adjusted independently, it is easier to adjust their light output. It is important to note that you can set the specified color without switching the LEDs on the basis of pulse-width modulation, so that the light output is in continuous time dynamics.

1. The device power supply of the light elements, comprising: a block (12) of the energy supply, the first luminous element (30)having a first color, second and third light elements (34, 38), with the second and third colors, and managed key (42)connected in series with the specified third light element (38), with the specified serial connection from the specified third light element (38) and the specified key (42) is connected in parallel to a specified second light-conducting element (34), characterized in that the block (12) supply energy has first and second terminals (20, 22), with asany first luminous element (30) is connected with a first output (20) and the above second and third light elements (34, 38) are connected with the specified second output (22), the specified block (12) of the energy supply is configured to provide a regulated output signal at the specified first and second specified outputs (20, 22), and these second and third light elements (34, 38) and the specified block (12) of the energy supply is made so that the third light element (38) emits light when the key (42) is closed.

2. The device power supply according to claim 1, characterized in that the block (12) of the energy supply is arranged to provide independently adjustable output signals on the specified first and second specified outputs (20, 22).

3. The device power supply according to claim 1, characterized in that the block (12) of the energy supply is arranged to provide output signals on the specified first and second specified outputs (20, 22)which are adjustable in a predetermined relation to each other.

4. The device power supply according to any one of claims 1 to 3, characterized in that the said second and third light elements (34, 38) are performed so that only the third luminous element (38), not the second luminous element (34)that emits light when the key (42) is closed.

5. The device power supply according to claim 1, characterized in that at least one of the light elements (30, 34, 38) contains m is Nisha least one light emitting diode (LED; 32, 36, 40).

6. The device power supply according to any one of claims 1 to 3, characterized in that said source (12) energy includes first and second springs (15, 17) current, attached to the first (20) and second (22) outputs, respectively.

7. The device power supply according to claim 1, characterized in that the output level of the specified second output (22) is controlled synchronously with the key (42) for supplying the second and third light elements of different signals.

8. The device power supply according to claim 1, characterized in that the block (12) of the energy supply contains two subunits (14, 16) pulsed power sources.

9. The device power supply according to claim 1, characterized in that at least one optical sensor (60) is provided for measuring optical characteristics of light elements and for transmitting a control signal to the controller (50), arranged to control the power supplied to the lighting elements.

10. The device power supply according to claim 1, characterized in that the sensor (64) temperature is provided to protect the system from overheating and to compensate for changes in light light elements at different temperatures.

11. The device power supply according to claim 1, characterized in that the at least one stored energy element (70, 72) is provided and attached to at least one of the decree is the R of the second and third light elements.

12. The device power supply according to claim 1, wherein the first storing energy element (70) is provided and attached to the specified second light-conducting element (34), the second storing energy element (72) is provided and attached to the specified third light element (38), and a dividing element, preferably a diode (74), is provided and attached to the specified first or the second storing energy element.

13. The device power supply according to item 11 or 12, characterized in that at least one of the specified storing energy elements (70, 72) is made in the form of a capacitor.

14. Way to supply power to the lighting elements are preferably of different colours, containing phases in which: provide the first luminous element having the first color, and supply it to the first power, provide second and third light elements included in parallel and preferably to both light element had a different color, preferably selected to cover certain colors together with the first light element, ensure the key is in series with the third light element for switching the third light element to an on state and off state, with the specified serial connection and the specified second luminous element includes the parallel, supply these the second and third light elements of the second power, the first and second light elements and the specified second power are selected so that the third light element to emit light when the key is closed, and the second luminous element to emit light if the specified key is open.

15. The method according to 14, characterized in that in the static mode key (42) hold in one switch state and the ratio of the amplitude of the power supplied to the second or third light element to the amplitude of the power supplied to the first light element, change to achieve a desired full color.

16. The method according to 14, characterized in that, in dynamic mode key continuously switch is in its on state and off state with a particular work cycle, to obtain a mixed color to customize full color.

17. The method according to item 16, characterized in that the amplitude of the power supplied to the second and third light elements change depending on the state of the shift key.

18. The method according to item 16 or 17, characterized in that the key switch is in its on state and off state of at least 50, preferably to 400 times per second.

19. The method according to any of PP-17, characterized in that the ratio of the amplitude of the power supplied koutarou or a third light element, to the amplitude of the power supplied to the first light element, change to achieve a desired full color and amplitude of capacity supplied by the first subunit and the second subunit, change to achieve a given brightness.

20. The method according to any of PP-17, wherein providing at least one stored energy element for at least one of the second and third light elements for the supply of energy during periods in which energy is not taken from the power source, and the cycle switch is chosen so that it was sufficiently high frequency to avoid flicker to the human eye.



 

Same patents:

FIELD: physics.

SUBSTANCE: proposed illuminator 10 built around LEds comprises assemblage of LED different-colour light sources 14 to produced mixed-colour light and LED source control device to control said sources in compliance with preset values. Note here that first control data are generated by, at least, one colour transducer 22. Illuminator differs from known designs in that its incorporates device 30, 32 designed to determine the temperature of each LED light source and device 26 to compensate for preset values in compliance with second control data including LED light source temperature.

EFFECT: higher stability of operation.

20 cl, 2 dwg, 1 tbl

FIELD: physics.

SUBSTANCE: invention relates to a light-emitting device (1) having an exciter (10) and a flat light-emitting element (20), where the exciter (10) is connected to a source (2) and a the light-emitting element (20), and where the light-emitting element (20), which has internal capacitance (21), is connected to the said exciter (10) so that the internal capacitance (21) serves as the passive output filter of the exciter (10).

EFFECT: design of a light-emitting device with smaller thickness.

10 cl, 9 dwg

FIELD: physics.

SUBSTANCE: fluorescent tube fitting device has a light-emitting diode element (4) which includes at least one electric starter element (4.1) connected to at least one phase conductor and also connected to at least one neutral wire at least through one conductor (4.2) having at least one light-emitting diode (4.3).

EFFECT: reduced need to replace fluorescent tubes in fittings and reduced electrical power consumption.

3 cl, 2 dwg

FIELD: mechanics, physics.

SUBSTANCE: device to excite electroluminescence consists of input unit connected in series with microprocessor unit, sinusoidal oscillation generator, amplitude-frequency response corrector, step-up transformer and exciting electrodes furnished with plates for the specimen to be placed there between. Note that the said exciting electrodes are optically coupled with the photo receiver connected with the ADC which, in its turn, is connected with the microprocessor unit. The latter is connected to the display unit and amplitude-frequency response corrector, while the sinusoidal oscillation generator is connected via a feedback loop with the microprocessor unit.

EFFECT: simpler design, smaller sizes, brightness correction in wide frequency range.

3 dwg

FIELD: mechanics, physics.

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EFFECT: simpler design, smaller sizes, brightness correction in wide frequency range.

3 dwg

FIELD: physics.

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EFFECT: reduced need to replace fluorescent tubes in fittings and reduced electrical power consumption.

3 cl, 2 dwg

FIELD: physics.

SUBSTANCE: invention relates to a light-emitting device (1) having an exciter (10) and a flat light-emitting element (20), where the exciter (10) is connected to a source (2) and a the light-emitting element (20), and where the light-emitting element (20), which has internal capacitance (21), is connected to the said exciter (10) so that the internal capacitance (21) serves as the passive output filter of the exciter (10).

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10 cl, 9 dwg

FIELD: physics.

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EFFECT: higher stability of operation.

20 cl, 2 dwg, 1 tbl

FIELD: physics.

SUBSTANCE: invention relates to a device for powering luminous elements, having an energy supply unit (12), a first luminous element (30), having a first colour, preferably white, a second and a third luminous element (34, 38), having a second and a third colour, preferably for adjusting the colour of the first luminous element, and a controlled switch (42), connected in series to the said third luminous element (38). Said serial connection from the said third luminous element (38) and said switch is connected in parallel to the said second luminous element (34). The energy supply device is characterised by that the said energy supply unit (12) has a third and a second output (20, 22). The said first luminous element (30) is connected to the said first lead (20) and the said second and third luminous elements (34, 38) are connected to the said second led (22), the said energy supply unit (12) is configured to provide controlled, preferably independently controlled, output signals on the said first and second leads (20, 22), and the said second and third luminous elements (34, 38) and the said energy supply unit (12) are configured in such a way that, the said third luminous element (38) emits light when the switch (42) is closed. The invention also relates to a method of powering the luminous elements.

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20 cl, 4 dwg

FIELD: physics.

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EFFECT: simplification.

16 cl, 4 dwg

FIELD: physics.

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EFFECT: improved method.

25 cl, 6 dwg

FIELD: physics.

SUBSTANCE: illumination system (100) comprises: a set (14) of lamps; a controller (115); a user input device (19); memory (120) which determines discrete colour points containing an ID table (121) of hue, an ID tale (122) of saturation, an ID table (123) of brightness and boundary memory (124) which determines the boundary of the colour space. Based on data (x1, x2, x3) received from the user input device and information in the memory, the controller generates colour control signals (ξ1, ξ2, ξ3) for the set of lamps. The controller compares user input data with information in the boundary memory. If the controller detects that the said point lies beyond the boundaries of the colour space, the controller calculates the replacement point on the boundary of the colour space which was determined in the boundary memory (124), and generates is control signals based on the replacement point.

EFFECT: reduced volume of memory space required.

3 cl, 3 dwg

FIELD: physics.

SUBSTANCE: switched array of light elements has first, second and third light-emitting elements and first and second switches. The first light-emitting element has first and second leads, and the second light-emitting element has a first lead and a second lead connected to the second lead of the first light-emitting element. The third light-emitting element has a first lead connected to the first lead of the first light-emitting element, and a second lead. The first switch has a first lead connected to the first leads of the first and third light-emitting elements, and a second lad connected to the first lead of the second light-emitting element. The second switch has a first lead connected to the second lead of the third light-emitting element, and a second lead connected to the second leads of the first and second light-emitting elements.

EFFECT: fewer circuit components.

13 cl, 8 dwg

FIELD: electricity.

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EFFECT: reducing the number of circuit components.

15 cl, 5 dwg

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