Led circuit

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering. In LED circuits (1) comprised of in-series first and second circuits (11, 12) with the first and second LEDs; the third circuits (13) are connected in parallel to the second circuits (12) to control the first LEDs in the first circuits (11) and /or third LEDs in the fourth circuits (14). The LED circuit (1) receives supply voltage from a power supply source (2, 3) supplying the LED circuit (1). The third circuit (13) receives supply voltage from the second circuit (12) supplying the third circuit (13). Supply voltage may be represented as voltage in the second circuit (12). The third circuit (13) may control the second LEDs in the second circuit (12) additionally. The above control may contain control unit for current passing through the above LEDs in order to turn light down, suppress light blinking, to adjust light and/or to protect overheating.

EFFECT: improving control efficiency.

13 cl, 5 dwg

 

AREA of TECHNOLOGY

The invention relates to a led circuit. The invention further relates to a device comprising such led chain.

Examples of such a device are lamps with LEDs.

Art

In WO 2009/013675 disclosed configuration bypass switch with led, battery powered, in which a string of LEDs divided into segments, each of which has a bypass switch and a drive circuit for the bypass switch. Circuit powered by the power supply voltage is locally generated from the direct voltages of the LEDs of the segment.

Summary of the INVENTION

The objectives of the invention are to provide an improved led circuit and providing a device comprising an improved led chain.

According to the first aspect of the invention provides an led circuit, containing

the first circuit containing at least a first led block

the second chain containing at least a second led unit, and

a third circuit to control at least one led unit, distinct from the second led unit, and the third circuit are connected in parallel with the second circuit and the second circuit are connected in series with the first circuit.

Led circuit with�refer to the first circuit with the first led unit and a second circuit with a second led unit. The first and second circuits are connected in series between them. Led circuit further comprises a third circuit. A third circuit connected in parallel with the second circuit and controls the at least one led unit, which is located outside the second circuit. As a result no longer want to use for each segment of the led array and for each scheme of excitation of each segment locally generated voltage of the power source for feeding the excitation scheme. According to the first aspect of the invention, the led circuit can be divided into the first and second circuit and a third circuit can be placed in any of a number of provisions (more options, more optimizations) and can be used to control other, lots and/or all of the circuits (more flexibility, more efficiency). This is a very significant improvement.

According to the embodiment of the led chain is characterized by the led circuit, configured to receive the source voltage from the source to power the led circuit, and a third circuit configured to receive the voltage from the second circuit to power the third circuit. The source can be an AC power source to supply a voltage source of AC power and can �to predstavljati an AC source with rectifier circuit to supply a voltage source of DC power and can be a constant current source to supply a voltage source the DC power.

According to the embodiment of the led circuit characterized by a voltage that is a voltage at the second circuit. This is a simple and low-cost implementation option.

According to the embodiment of the led chain is characterized by the third circuit containing the power supply terminals are connected to end terminals of the second circuit. This is a simple and low-cost implementation option that is easy to implement.

According to the embodiment of the led chain is characterized by the mentioned at least one led unit containing the aforementioned first led unit and/or the third led unit of the fourth circuit led circuit. The third circuit may control the first led unit in the first circuit and/or may manage third led unit in the fourth circuit. This fourth chain can be connected in series with the first and/or second circuit or may be connected in parallel with the first circuit, or a combination of the first and second circuits, etc.

According to the embodiment of the led chain is characterized by the third circuit made with the possibility of additional control at least a second led unit. The third circuit can be controlled, in addition to control the first led unit and/or the third led light�one chain the second led unit in the second circuit. It is an efficient variant of the implementation.

According to the embodiment of the led chain is characterized by the mentioned control containing the control current flowing through said at least one led unit, for the dimming of the lights, flicker suppression, color adjustment and/or protection from overheating. Current can be adjusted using a control circuit, connected in series or in parallel with said at least one led unit.

According to the embodiment of the led chain is characterized by the third circuit containing the transistor, operational amplifier, comparator, sensor, analog circuit, digital circuit and/or processor. Such schemes or elements often require a supply voltage that is much less than the voltage of the power supply.

According to the embodiment of the led circuit first described chain, optionally containing one or more additional first led units and/or one or more other blocks, and/or the second chain, optionally containing one or more additional second led blocks and/or one or more other blocks, and/or led chain, optionally containing one or more other blocks. Each of these led BL�cov contains one or more LEDs. Mentioned the other blocks are not led blocks connected in series and/or parallel with led blocks. Referred to other blocks may represent resistors, current sources, control circuits, other circuits and other elements.

According to the embodiment of the led circuit is characterized by one or more led units, each led unit comprises or forms part of antiparallel LEDs, and the third circuit are connected in parallel with the second circuit via a rectifier circuit, or one or more led units, each led unit comprises or forms part of a unidirectional LEDs, and the third circuit are connected in parallel with the second circuit via the connection. In the case of voltage source AC power you can use the antiparallel diodes and the rectifier circuit, for example one diode or two diodes or a diode bridge of four diodes, etc. can be used for converting the AC voltage at the second circuit in voltage DC power for the third circuit. In the case of a voltage source of DC power can be used unidirectional LEDs and a simple connection can be used for transferring the DC voltage through the second chain on traduceri as voltage DC power.

According to the embodiment of the led chain is characterized by the third circuit, forming part of a Converter for feeding the first and second circuits. Here Converter and the third circuit are combined, which makes this option the implementation of high-performance variant of the implementation.

According to the embodiment of the led chain is characterized by the third circuit, forming part of the Converter control, or that office, forming part of the third circuit. The Converter feeds the first and second circuits. Control of the Converter is supplied through the second chain. This control contains or forms a part of the third chain.

According to the second aspect of the invention provides a device comprising an led circuit, described above.

The invention is based on the idea that a fully Autonomous segments are costly decision. The invention relies on the basic idea that led in the circuit containing series-connected first and second circuit with the first and second led units, the third circuit should be connected in parallel with the second circuit and must control at least one led unit, which is located outside the second circuit.

The invention solves the problem of providing an improved led circuit. The invention thus�e has the advantage of that allows more options, more optimizations, more flexibility and/or more efficiency.

These and other aspects of the invention clear from and will be explained with reference to the option(s) implementation as described below.

BRIEF description of the DRAWINGS

In the drawings:

Fig. 1 - the first led chain,

Fig. 2 - the second led chain,

Fig. 3 - the third led circuit

Fig. 4 - the fourth led circuit, and

Fig. 5 - the fifth led chain.

Detailed description of embodiments of

Fig. 1 shows a first led circuit 1 comprising a first serial connection of a current source 16, the first circuit 11 and the second circuit 12 and containing a second serial connection of a source 17 of the current, fourth circuit 14 and the fifth circuit 15. The first and fourth circuits 11 and 14 contain four series-connected LEDs. The second and fifth circuits 12 and 15 contain two series-connected LEDs. The first and second serial connections are connected in parallel with each other and with the source 2 voltage direct current power supply for led circuit 1. Led circuit 1 further comprises a third circuit 13 for controlling at least one led in at least the first circuit 11 or the fourth circuit 14. Preferably, the third circuit 13 controls each led in, �ENISA least the first circuit 11 or the fourth circuit 14 or manages at least one led in each of the first, second, fourth and fifth circuits 11, 12, 14 and 15. Most preferably, the third circuit 13 controls each led in each of the first, second, fourth and fifth circuits 11, 12, 14 and 15.

The third circuit 13 is used for receiving the voltage from the second circuit 12 to the third power circuit 13. Preferably this voltage is the voltage at the second circuit 12. For this reason, the third circuit 13 may be provided with power terminals 21 and 22 connected to end terminals of the second circuit 12. The third circuit 13, for example, contains a transistor, operational amplifier, comparator, sensor, analog circuit, digital circuit and/or processor, etc.

The first led circuit 1 shown in Fig. 1, the control contains control current flowing through at least one led, for example, the dimming of the lights, flicker suppression, color adjustment and/or overheating protection, etc. For this reason, the outputs of the third circuit 13 are connected with control inputs of sources 16 and 17 of the current.

In practical implementation, it is better to place the current source 16 between the first circuit 11 and the second circuit 12, above the power supply terminal 21. In an optional second chain, the 17 source current can be under fifth circuit 15 or between the fourth circuit 14 and Fri�th circuit 15.

Alternatively, each of first, second, fourth and fifth circuits 11, 12, 14 and 15 may contain a different number of LEDs in any kind of serial and/or parallel connection. In the minimum configuration, you will see only the first and second circuits 11 and 12. It is not excluded that the sixth circuit, not shown, etc. added to the first, second, fourth and fifth circuits 11, 12, 14 and 15 in any kind of serial and/or parallel connection. Both sources 16 and 17 of the current can be combined into a single current source and/or replace other serial control circuits, such as a passive switching elements, etc.

Fig. 2 shows a second led circuit 1, which differs from that shown in Fig. 1 only in that the springs 16 and 17 current replaced by resistors 18 and 19, and the fact that the second and fifth circuits 12 and 15 are the sources 31 and 32 current, connected in series with two LEDs, and managed by the third circuit 13.

Fig. 3 shows a third led circuit 1, which differs from that shown in Fig. 2 only in that the first and fourth circuits 11 and 14 contain two series-connected LEDs, and the fact that in the first (second, fourth, fifth) circuit 11 (12, 14, 15) two serially connected LEDs may form a parallel connection with the transistor 43 (41, 44, 42). The transistors 41-44 upravlautsa� third chain 13. For this reason, the outputs of the third circuit 13 are connected to control electrodes of these transistors 41-44.

Alternatively, each of first, second, fourth and fifth circuits 11, 12, 14 and 15 may contain a different number of LEDs in any kind of serial and/or parallel connection. In the minimum configuration may be present on only one transistor in each circuit. In a more extensive equipment specification, each circuit may contain more than one transistor. In the maximum configuration you can use one transistor per led. Sources 31 and 32 current can also be controlled by a third chain 13. It is not excluded that the sixth circuit, not shown, etc. added to the first, second, fourth and fifth circuits 11, 12, 14 and 15 in any kind of serial and/or parallel connection. Both sources 31 and 32 of the current can be combined into a single current source and/or replace other serial control circuits, such as a passive switching elements, etc. Each transistor 41 to 44 can be replaced by another parallel control scheme, such as a passive switching element, etc.

Fig. 4 shows a fourth led circuit 1 comprising a first serial connection of the resistor 18, the first circuit 11, the second circuit 12 and the first sequential control circuit 33 and containing a second successive�I come again and again connection of the resistor 19, the fourth circuit 14, the fifth circuit 15 and the second sequential control circuit 34. The first and fourth circuits 11 and 14 contain four pairs of anti-parallel LEDs or two anti-parallel chains, each of which contains four series-connected LEDs. The second and fifth circuits 12 and 15 contain two pairs of antiparallel LEDs or two antiparallel chains, each containing two series-connected LEDs. The first and second serial connections are connected in parallel with each other and with source 3 AC voltage for powering the led circuit 1. Led circuit 1 further comprises a third circuit 13 for controlling at least one led in at least the first circuit 11 or the fourth circuit 14. Preferably, the third circuit 13 controls each led in at least the first circuit 11 or the fourth circuit 14 or manages at least one led in each of the first, second, fourth and fifth circuits 11, 12, 14 and 15. Most preferably, the third circuit 13 controls each led in each of the first, second, fourth and fifth circuits 11, 12, 14 and 15.

The third circuit 13 is used for receiving the voltage from the second circuit 12 to the third power circuit 13. Preferably this voltage is the voltage at the second circuit 12. P� this reason, the third circuit 13 may be provided with a power supply terminal 21, connected to the upper terminal of the second circuit 12 through the rectifier circuit 35, and a power supply terminal 22 connected to the lower terminal of the second circuit 12. The third circuit 13, for example, contains a transistor, operational amplifier, comparator, sensor, analog circuit, digital circuit and/or processor, etc., which usually requires DC voltage. Rectifier circuit 35 may be a diode. Alternatively, you can use two diodes or a diode bridge of four diodes. In order further alternative, the rectifier circuit 35 may be shifted into the third chain 13.

In the fourth led circuit 1 shown in Fig. 4, the control contains control current flowing through at least one led, for example by dimming of the lights, flicker suppression, color adjustment and/or overheating protection, etc. For this reason, the outputs of the third circuit 13 are connected with control inputs of the sequential control circuits 33 and 34.

Alternatively, each of first, second, fourth and fifth circuits 11, 12, 14 and 15 may contain a different number of LEDs in any kind of serial and/or parallel connection. In the minimum configuration, you will see only the first and second circuits 11 and 12. It is not excluded that the sixth circuit, not shown, etc. added to the first, second, fourth and fifth circuits 11, 12, 14 and 15 in any kind of sequence�flax and/or parallel connection. Both sequential control circuits 33 and 34 can be combined into one consistent control scheme and/or you can replace and/or Supplement the above-described parallel control circuits, etc. Both sequential control circuits 33 and 34 can replace the resistors 18 and 19 or may be located closer to these resistors 18 and 19.

Fig. 5 shows a fifth led circuit 1 comprising a rectifier circuit 37, an inverter 38 and the first and second circuits 11 and 12. The inputs of the rectifying circuit 37 connected to the outputs of the voltage source 3 of alternating current, the outputs of the rectifying circuit 37 is connected to the inputs of the Converter 38, and the outputs of the Converter 38 is connected to the end terminals of the serial connection of the first and second circuits 11 and 12. Each of the first and second circuits 11 and 12 comprises one or more LEDs. The intermediate terminal between the first and second circuits 11 and 12 connected, for example, through the diode 36 to the third circuit 13, which, in this case, forms part of the Converter 38. Alternatively, the diode 36 may be shifted to the transmitter 38 and/or the third circuit 13. In order further alternative, the diode 36 can be replaced by one or more other elements, or a compound and/or can be supplemented with one or more other elements.

The voltage taken from the second circuit 12 is used for feeding the control �of reobrazovateli 38, in order to replace more costly and less effective solutions used until now. The third circuit 13 forms a part of the control of the Converter 38, or this office forms part of the third circuit 13.

Each of the first and second circuits 11 and 12 in Fig. 5 can contain any number of LEDs in any kind of serial and/or parallel connection. In the minimum configuration, you will see only the first and second circuits 11 and 12. It is not excluded that the fourth circuit, not shown, etc. added to the above-described first and second circuits 11 and 12 in any kind of serial and/or parallel connection. The Converter 38 may be a Converter of any kind.

In any case, the implementation can add capacitors to smooth the voltage source of the DC power source 2 DC voltage and smoothing the voltage supplied from the second circuit 2 to the third circuit 3. Source 2 DC voltage may be a battery, etc. or may be a combination of the voltage source 3 of alternating current and a rectifier circuit 37 shown in Fig. 5.

In the end, in the led circuits 1, containing series-connected first and second circuits 11 and 12 with the first and second LEDs, the third circuit 13 is connected in parallel with�chains which contain 12 to control the first LEDs in the first circuits 11 and/or third LEDs in quadrant circuits 14. It allows more options, more optimizations, more flexibility and/or more efficiency. Led circuit 1 receives the supply voltage from the source 2, 3 to power the led circuit 1. The third circuit 13 receives the voltage from the second circuit 12 to the third power circuit 13. The supply voltage may be a voltage at the second circuit 12. The third circuit 13 may further control the second led in the second circuit 12. Management may include management of current flowing through the LEDs for the dimming of the lights, flicker suppression, color adjustment and/or protection from overheating.

Although the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description should be considered illustrative, but not limiting; the invention is not limited to the disclosed variants of implementation. For example, the invention can be applied according to the embodiment of the implementation, in which different parts of various of the disclosed embodiments are combined in a new version of the implementation.

Other variations of the disclosed embodiments can be understood and applied by experts in the art in the practice of the claimed invention, when studying the drawings, the description of the invention and the formulas and�gaining. In the claims the word "contains" does not exclude other elements or steps and the use of their names in the singular does not exclude the presence of their sets. A single processor or other unit may fulfill the functions of several of the elements mentioned in the claims. The mere fact that certain measures mentioned in mutually different dependent clauses, does not mean that you cannot advantageous to use a combination of these measures. No symbols in the claims should not be considered limiting of its scope.

1. Led circuit (1) containing
the first circuit (11) containing at least a first led block,
the second circuit (12) containing at least a second led unit, and
third circuit (13) for controlling at least one led unit, distinct from the second led unit, and the third circuit (13) connected in parallel with the second circuit (12), and the second circuit (12) connected in series with the first circuit (11).

2. Led circuit (1) according to claim 1, in which the led circuit (1) is arranged to receive the source voltage from the source (2, 3) to power the led circuit (1) and third circuit (13) configured to receive the voltage from the second circuit (12) for feeding the third circuit (13).

3. Led circuit (1) according to claim 2, � which the supply voltage is the voltage at the second circuit (12).

4. Led circuit (1) according to claim 3, in which the third circuit (13) comprises terminals (21, 22) supplies connected to end terminals of the second circuit (12).

5. Led circuit (1) according to claim 1, in which the mentioned at least one led block contains the aforementioned first led unit and/or the third led unit of the fourth circuit (14) led circuit (1).

6. Led circuit (1) according to claim 5, in which the third circuit (13) is made with the possibility of additional control at least a second led unit.

7. Led circuit (1) according to claim 1, in which the control contains control current flowing through said at least one led unit, for the dimming of the lights, flicker suppression, color adjustment and/or protection from overheating.

8. Led circuit (1) according to claim 1, in which the third circuit (13) comprises a transistor, operational amplifier, comparator, sensor, analog circuit, digital circuit and/or processor.

9. Led circuit (1) according to claim 1, in which the first circuit (11) further comprises one or more additional first led units and/or one or more other blocks (43), and/or the second circuit (12) further comprises one or more additional second led blocks and/or one or more other blocks (31, 41), and/or led circuit (1) further comprises one or more others�GIH blocks (16, 17, 18, 19, 33, 34).

10. Led circuit (1) according to claim 1, in which each of the led units includes or forms part of antiparallel LEDs, the third circuit (13) connected in parallel with the second circuit (12) via a rectifier circuit (35), or one or more of each of the led units includes or forms part of a unidirectional LEDs, and the third circuit (13) connected in parallel with the second circuit (12) through the connection.

11. Led circuit (1) according to claim 1, in which the third circuit (13) forms part of the Converter (38) for feeding the first and second circuits (11, 12).

12. Led circuit (1) according to claim 11, in which the third circuit (13) forms part of the Converter control (38), or this office forms part of the third circuit (13).

13. The device containing the led circuit (1) according to claim 1.



 

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16 cl, 9 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering. The light assembly (10) used for a lantern (1), in particular, for lighting of roads and/or streets has adjusted light distribution. The light assembly (10) contains at least two light (11, 12) sources or two groups of the light sources, at that each of the above light sources (11, 12) or each of the above groups has individual light distribution performance, at that aggregated light distribution for the light assembly (10) is adjusted by change in light output ratio for at least two above light sources (11, 12) or groups of light sources.

EFFECT: simplifying adjustment of light distribution.

10 cl, 9 dwg

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering. The voltage divider scheme (1) intended for combination of a dimmer (2) with phase control and LED scheme (3) comprises an active circuit (4) to increase a number of variants. The active circuit (4) may contain a current-limit circuit (5) in order to limit current passing through the voltage divider scheme (1). The active circuit (4) may comprise a voltage detection circuit (6) for deactivation or deactivation in response to detection of the current-limit circuit (5) and may comprise a control circuit such as microprocessor chip (7) intended to control the current-limit circuit (5) and may contain a control circuit (9) intended to control use of data received from the current passing through the LED scheme (3) intended to control the current-limit circuit (5) and to control at least a part of the LED scheme (3) containing back-to-back LEDs (31-32) or in-series LEDs and/or parallel LEDs (33-36).

EFFECT: reduced power losses.

15 cl, 8 dwg

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering. A LED light source comprises: the first rectifier having the first and the second input terminals to connect to the alternating voltage source and the first and the second output terminals connected by the first LED circuit, the second rectifier having the first and the second input terminals and output terminals; the first input terminal of the second rectifier is connected to the first input terminal of the first rectifier and the second input terminal of the second rectifier is connected to the second input terminal of the first rectifier, the output terminals are connected by the second LED circuit, it also comprises a unit to create phase shift between the voltages which are present at the output terminals of the first rectifier and the output terminals of the second rectifier respectively in the course of operation. The LED circuits are excited by the circuit that can be powered from electricity supply network.

EFFECT: possibility to suppress stroboscopic effects.

6 cl, 7 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to a user interface device for controlling an electrical consumer, particularly a lighting system. The invention further relates to a lighting system using said user interface device. To provide a user interface device for controlling a lighting system which can be easily controlled and enable recognition of the selected presetting in all areas of a display device, the invention discloses a user interface device for controlling a consumer load which comprises: an input device; and a display device, the input device and the display device being arranged connected to each other in one common layer or in two layers respectively stacked on each other. The display device is adapted to display at least a first colour scale indicating a first range of values adjustable by a user input on the first colour scale and to display a first feedback indicator within the first colour scale indicating the current value of the first range of values output by the user interface device to a consumer load.

EFFECT: simple user interface adapted to recognise a selected setting.

18 cl, 8 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

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