Power-supply source circuit

FIELD: electricity.

SUBSTANCE: invention pertains to the field of electrical engineering and can be used in (1) a power supply source. The power-supply source circuit contains: input contacts (17, 19) intended for connection of the power-supply source circuit (1) to the direct-current energy source circuit (7), two output contacts intended for connection of the load circuit (11) the power-supply source circuit (1), a bridge circuit (3) containing at least two in-series switches (M1, M2) interconnected between two output contacts, a resonant circuit (5) connected at its one end to one or more input contacts and at its other end to the interconnecting track (15) of at least two switches (M1, M2) of the bridge circuit (3) and at least two diodes (D1, D2), at that the first diode (D1) is coupled between the first input contact intended to connect a positive contact of the direct-current energy source (7) and the first end contact of the in-series switches. The first end contact is connected to the first output contact, the second diode (D2) is coupled between the input contact intended for connection to a negative contact of the energy source circuit (7) and the second end contact of the in-series switches, at that the second end contact is connected to the second output contact.

EFFECT: increasing supply voltage.

11 cl, 13 dwg

 

The technical field

The present invention relates to a circuit power supply and the device containing the circuit power source.

Prior art

Schematic of power sources, including power supply with switchable mode, widely known in the art. Such schemes power sources, for example, United in consumer and non-consumer products. An illustrative application is a power light emitting diodes (LED) and/or organic LEDs (OLED), in particular tape LED/OLED used for automotive lighting LED/OLED, and in General lighting LED/OLED, fed from a battery.

Schematic of power sources that are best suited and therefore, they are preferably used for the above applications are, in particular, pulse series resonant converters with a constant average current output I, hereinafter designated as DSRC-I. This type of transducer, for example, described in WO2008/110978. The functionality of this type of Converter is understandable to experts in the art and therefore not explained in more detail. Converters DSRC-I prefer a constant average current output, moreover, does not t buesa no read current and no loop current control. Therefore, excluded losses caused by the read current, and DSRC-I provides a highly compact and lightweight structure in comparison with other well-known serial resonant converters.

The lack of the main Converter DSRC-I is that the output voltage should be lower than the input voltage, if not provided with the transformer or additional components such as additional voltage doubler. However, both solutions require the space and increase the cost of the schemes. As an example, tail light LED car, which consists of several LED in series connection, will require more than 12V vehicle battery, for example, 5 LED consistently require C,3 = 16,5 Century Hence, DSRC-I causes problems if several LED should be connected in series, and have only a low supply voltage, for example, in automotive applications.

The system, powered by batteries, often stacked in section sequentially to achieve a higher output voltage. However, sufficient piling sections is impossible in many high voltage applications due to lack of space.

A brief statement of the substance of the invention

The present invention is to provide a circuit is the power source, with the help of which may be obtained from the output voltage, which is higher than the input voltage. Diagram of the power supply source containing a function of increasing voltage, in accordance with the present invention, may incrementally increase the input voltage, i.e. to increase the output voltage and, thus, to reduce the number of sections of the battery.

In accordance with an aspect of the present invention provided a diagram of the power source, containing

input contacts intended for connection diagrams power supply with a source of DC energy,

two output contacts, for connecting the load circuit with the circuit of the source power,

bridge circuit containing at least two series-connected switches connected between two output terminals,

a resonance circuit connected at one end with one or more input pins, and connected at the other end to interconnect at least two switches of the bridge circuit, and

at least two diodes, the first diode is connected between the first input contact is provided for connection of the positive terminal of the energy source and the first terminal contact serially connected switches, and the first terminal contact soy is inen with the first output contact and a second diode connected between the second input contact is provided for connection of the negative contact energy source, and the second end of the contact serially connected switches, and the second terminal contact connected to the second output contact.

This topology Converter provides a constant average current output at a higher output voltage than input voltage. In addition, he has a simple circuit construction and does not require a transformer or other additional component. In General, the Converter provides the advantage that no read current and no current control, in addition, provides a very compact circuit design combined with increasing voltage. Diagram of the power supply in accordance with the present invention is, above all, easy to construct, simple to manage and provides high efficiency. Detailed functionality of the power supply circuits will be explained in the context of the figures.

In the first aspect of the present invention presents a diagram of the power supply, in which the first diode is polarized relative to the assigned switch, thus allowing the flow negative (polarized) resonance is about current, and the second diode is polarized relative to the assigned switch in such a way that allow the flow of positive (polarized) resonant current. This provides the advantage that only a positive current flows through the output.

In an additional aspect of the present invention presents a diagram of the power supply, in which the resonant circuit is a serial resonant circuit containing inductance and capacity. This is advantageous because this ensures best functionality DSRC-I, as well as switching zero current (ZCS), which is well known in the art and therefore not explained further.

In another aspect of the present invention presents a diagram of the power supply, in which a resonance circuit connected to the input contacts, i.e. interconnections between the diodes and the power source. In particular, the capacity is divided at least into two partial capacity, and each partial capacity includes half a resonant capacitance, each partial capacity connected to input contacts, i.e. the interconnection of diodes and an energy source. This topology is best, as it has a function of increasing voltage and, in addition, supported the main advantages of the conventional DSRC-I.

In an additional aspect of the present invention presents a scheme of the power source, in which at least two switches of the resonant circuit are field effect transistors with MOS structure (MOSFET). This is advantageous, since a MOSFET suitable for the above applications and, in addition, are easy to control.

In an additional aspect of the present invention presents a diagram of the power supply, optionally containing a control device that is arranged to provide maximum switching frequency of the bridge circuit, which is in the range from 10 to 50% of the resonant frequency of the resonant circuit, in particular in the range of half the resonance frequency of the resonant circuit.

In addition, the control device is configured to provide switching of the switches of the bridge circuit with a duty cycle of 50%. In particular, there can be achieved the duty cycle is exactly 50%, but mostly should be made a short time in idle switch between high side and low side, which preferably is in the range from 100 NS to 1 µs.

In accordance with another aspect of the present invention provided a device containing a power source, the load circuit and the circuit of the power supply, as PR is halogeno in accordance with the present invention, to power the load circuit. It should be understood that the device has the same advantages as the circuit power supply. The device may contain one or more loads, while the payload contains one or more LED, OLED, or the like, and the device may be, for example, the lighting device.

Preferably the output filter is located between the circuit power source and the load circuit. Output filter stabilizes the output voltage and, therefore, guarantees a lower ripple current DC load. The output filter can be done simply by using a capacitor connected in parallel with the load circuit, but allows for more complex filters, for example, containing a serial and/or parallel circuit containing one or more capacitors and/or inductances, as is well known in the art.

It will be understood that the claimed device has similar and/or identical preferred embodiments of, claimed diagram of the power source, as defined in the dependent claims.

Brief description of drawings

The invention is further explained in the description of the preferred variants of the embodiment with reference to the accompanying drawings, in which:

figure 1 depicts circuits the power supply in accordance with the embodiment of the present invention;

figure 2 depicts a schematic diagram of the circuit simulation of the power source in accordance with the embodiment of the present invention;

figure 3 depicts the simulation results for the first set of parameter values;

figure 4 depicts the simulation results for the second set of parameter values;

figure 5 depicts the simulation results for the third set of parameter values;

6 depicts the simulation results for the fourth set of parameter values;

7 depicts a simplified diagram of the power supply in accordance with the embodiment of the present invention;

Fig depicts additional simplified diagram of the power supply in accordance with the embodiment of the present invention;

Fig.9 depicts the schema of the conductive parts of the electrical power source in accordance with the embodiment of the present invention, for a first interval of time;

figure 10 depicts the schema of the conductive parts of the electrical power source in accordance with the embodiment of the present invention, for the second time interval;

11 depicts a diagram of the conductive parts of the electrical power source in accordance with the embodiment of the present invention, for the third time interval

Fig depicts the schema of the conductive parts of the electrical power source in accordance with the embodiment of the present invention, for the fourth time interval;

Fig depicts the signal of the resonant current.

Description of the preferred embodiment variants of the invention

Figure 1 depicts the block diagram 1 diagram of the power supply, in accordance with the embodiment of the present invention. Diagram 1 power supply contains a bridge circuit 3, the resonant circuit 5, which is connected at one end, i.e. at the input contacts to the source 7 of the energy, and the source 7 energy preferably is a source of constant voltageVin. Diagram 1 power supply source connected with the output contacts with the load circuit 9, which contains at least one (1) illustrative only four loads 11 and a smoothing capacitor 13 connected in parallel with the load 11. The load 11 can be LED, OLED, or the like. Output voltageVoutfalls through the vector of loads 11.

Bridge circuit 3 includes at least two switch M1andM2which are illustrative MOSFET, controlled by control device 14. In response to a constant current source 7 power bridge circuit 3 transmits a signal voltage in the resonant circuit 5 with the switching frequencyfswitchthat, in turn, transmits ACIrin figure 9 the load.

SwitchesM1andM2the bridge circuit 3 is preferably switched by the control device 14, which is adapted to provide the duty cycle of the switch equal to 50%. In addition, the device 14 is a control with the ability to provide maximum switching frequencyfswitchthe bridge circuit 3, which is preferably equal is half the resonance frequency of fresresonant circuits 5.

SwitchesM1andM2are connected in series, while the contact source selectorM1connected to the contact flow switchM2using the interconnect 15.

A resonance circuit 5 is connected at one end with a source of 7 energy and connected at the other end with the interconnect 15, at least two switchesM1andM2the bridge circuit 3. A resonance circuit 5 contains the inductance ofLresand capacity ofCres, while the capacity ofC resillustrative is divided into two partial resonant capacitanceCres/2. Therefore, each of the partial containersCres/2 contains half the resonant tankCres.

1 additionally illustrates that the diodeD1assigned to the switchM1and the diodeD2assigned to the switchM2. In particular, diodesD1andD2mutually connected between each switchM1 andM2and the source 7 energy and, in particular, are connected in series with the respective assigned switchM1andM2on the one hand, and with the source 7 energy, on the other hand. One of the diodes, in particular diodeD1, polarized relative to the assigned switchM1in such a way that allowed the flow of negative (polarized) resonant currentIrthrough the diodeD1and the other diode, in particular a diodeD2, polarized relative to the assigned switchM2in such a way that allowed the flow of positive (polarized) p is transnova current Irthrough the diodeD2.

As will be explained in more detail below, the voltage dropV1at the resonant circuit 5 depends on the diodes and depends, in particular, whether the diode is currently conducting. Therefore, the voltage drop across the resonant circuit 5 can be summarized as follows:M1enabledD1is conductive:-Vin/2;M1connected withD2,D2is conductive:Vin/2-Vou t;M2connected withD2:D2is conductive:Vin/2;M2enabledD1is conductive:Vin/2+Vout.

Partial capacityCres/2 are connected in series with an inductance ofLresand additionally connected to the interconnections between the diodeD1or D2and the source 7 energy. Thus, one partial capacityCres/2 is connected to the interconnect 17 between the diodeD1and the source 7 energy and the other partial capacityCres/2 is connected to the interconnect 19 between the diodeD2and a source 7 of energy.

The above new topology diagram 1 power supply implements DSRC-1, containing most of its major advantages, and, in addition, provides the function of increasing voltage, so that the output voltage ofVouthigher than the input voltageVinwithout the need of any additional components such as a transformer.

It should be noted that the device 21 in accordance with the present invention will emerge scheme 1 power supply and in addition, it may contain one or more schemas 9 load.

Figure 2 depicts a schematic diagram of the circuit simulation 1 power supply in accordance with the embodiment of the present invention, while figure 3-6 depict the simulation results for different sets of parameter values. Schematic diagram of the simulation of figure 2 is based on the topology diagram of the power source, illustrated in figure 1.

Figure 3 depicts the simulation results for the first set of parameter values. In particular, the simulation results based on an input voltageVin=24 V, output voltageVout=30 V and the switching frequency of the bridge circuitfswitch=fres/2, i.e. the switching frequency is equal to half the resonance frequency offres.

The upper CI is gram modeling figure 3 illustrates the currents I( V1) and I(V4) as a function of time t. Thus, the voltage ofV1corresponds to the voltage ofVinillustrated in figure 1, and the voltage ofV2corresponds to the voltage ofVoutillustrated in figure 1. It is obvious that the output current I(V4is lower than the input current I(V1).

The average modeling diagram, figure 3 illustrates the currents of the diodes I(D1) and I(D2) as a function of time t. As explained above, the diodesD1 andD2connected with their assigned switchesM1andM2with opposite polarizations. Therefore, diodesD1andD2permit alternating current to flow depending on the polarization of the resonant currentIras will be explained in more detail later in this application.

The bottom chart modeling figure 3 illustrates the resonant current I(Lres) as a function of time. The resonant current I(Lres) corresponds to the resonance current ofIrfigure 1.

Figure 4 depicts the simulation results for the second set of C is achene parameters. In particular, the simulation results based on an input voltageVin=24 V, output voltageVout=40 V and the switching frequency of the bridge circuitfswitch=fres/2, i.e. the switching frequency is equal to half the resonance frequency offres.

Figure 5 depicts the simulation results for the third set of parameter values. In particular, the simulation results based on an input voltageVin=24 V, output voltageVout=50 V and the switching frequency of the bridge circuitfswitch =fres/2, i.e. the switching frequency is equal to half the resonance frequency offres.

6 depicts the simulation results for the fourth set of parameter values. In particular, the simulation results based on an input voltageVin=24 V, output voltageVout=40 V and the switching frequency of the bridge circuitfswitch=fres/3, i.e. the switching frequency is equal to one third of the resonant frequency offres.

In order to describe the functionality of the circuit 1 power supply, topology, depicted in figure 1 can be simplified as proillyustrirovannoe 7 and Fig. 7 is provided with two reservoirsCin1andCin2and, optionally, a resonant tankCres. On Fig partial resonant capacitanceCres/2 figure 1 are combined in a single containerCresand the source 7 of the virtual energy is divided into two partial source 7' and 7", and each provides a constant voltageVin/2. It should be noted that the use of two partial containersCresor two tanksCin1andCin2 and, in addition, the resonant capacitanceCresleads to the same result. From Fig can be seen that the voltage incident on the capacity ofCresmarked asVCand the voltage incident on the inductance ofLresmarked asVL.

A resonance circuit 5 can be described by its resonant frequencyfresand its impedanceZres.

fres=12πLresCrts (1)

zres=LrtsCrts(2)

Based on the results of modeling the behavior of the circuit can be explained as follows. To describe the time intervals defined resonant periodt.

t=12Tres=121fres(3)

The switching period of the switchM1andM2isTswitch as can be seen from Fig.7, and 2TresTswitch. Conductive parts each time interval depicted in figure 10 on Fig.

Fig.9 depicts the schema of the conductive parts diagram 1 power supply in accordance with the embodiment of the present invention for the first time intervalt1:0<ttthat is illustrated in Fig. During this time interval the switchM1enabled, and the switchM2off. A resonance circuit 5 generates in this time interval the first negative half-wave, illustrative marked on Fig withW1.

Therefore, the switchM1allows the current to flow, which transmission is conducted from a source 7' constant voltage. The voltage incident on the serial resonance circuit 3, i.e. the capacity ofCresand inductanceLresindicated in Fig.9 withV1.

As a result the currentIris negative, the diodeD1will be spending for this current. DiodeD2polarized oppositely to the diodeD1and, therefore, will not allow the flow of negative currentIrin the first time interval.

Based on the results of modeling of conductive components in each time interval are known, and can be calculated with the amplitude of each sinusoidal half-wave. The result is:

Vc(=0)=V out-Vin(4)

In addition, the voltage dropV1inCresandLrescan be obtained from figure 9. Using the initial conditions and the voltage of the resonant tankVCcan be calculated with the amplitude of each sinusoidal half-wave and the voltage ofVCafter the end of each cycle. For each cycle of the voltage ofV1applied to the entire resonant circuit, can be obtained from the conductive parts. For the first cycleV1is:

V1(0<tt)=-Vin2)

Based on the idealized behavior of the circuit can be calculated amplitude of the resulting first negative sinusoidal half-waveW1.

I^1=-Vout+Vin2Zres(6)

Further, the current flowing through theD1after this half-wave is prevented by using a diodeD1as the currentIrbecomes positive.

Figure 10 depicts the schema of the conductive parts diagram 1 power supply in accordance with the embodiment of the present invention for the second time interval t2:ξ <tTswitch/2. During this time interval the switchM1still enabled, and the switchM2still off. A resonance circuit 5 generates in this time interval the second positive sine wave, illustrative marked on Fig withW2.

Consequently, the currentIrthus, is positive during this time intervalt2. Therefore, the diodeD1does not allow the flow of current and, thus, blocks the positive currentIr. However, the diodeD2that polarisusa is opposite to that of diode D1allows the current to flowIr. From figure 10 it is obvious that the currentIoutflows through the output.

From calculations by using formulas of the first time intervalt1the voltage of the resonant tanksVC(t)is:

Vc(t=τ)=-Vout(7)

AndV1:

V1(t<t2t)=Vin2-Vout(8)

This results in the amplitude of the second positive sinusoidal half-waveW2 :

I^2=Vin2Zres(9)

To further prevent current flow through diodeD2.

11 depicts a diagram of the conductive parts diagram 1 power supply in accordance with the embodiment of the present invention for the third time interval t3:Tswitch/2<tTswitch/2+t. During this time interval the switchM1off and switchM2included. A resonance circuit 5 generates in this time interval the third, positively the th sine wave, illustrative marked on Fig withW3.

Consequently, the currentIrthus, is positive during this time intervalt3. Therefore, the diodeD1does not allow the flow of current and, thus, blocks the positive currentIr. However, the diodeD2that is polarized oppositely to the diodeD1allows the flow of positive currentIr.

The behavior in the third and fourth time intervalt3andt4similar to the behavior of the first and the second int is vomited time t1andt2. Essentially half-wave current occur with opposite sign.

Voltage capacityVC(t)early in the third period of timet3is:

Vc(t=Tswitch/2)=Vin-Vout(10)

AndV1:

V1(Tswitch2<1Tswitch2+t)=Vin2(11)

Therefore, the third positive sinusoidal half-waveW3has the following amplitude:

I^3=Vout-Vin2Zres(12)

Fig depicts the schema of the conductive parts diagram 1 power supply in accordance with the embodiment of the present invention for the fourth time intervalt4:Tswitch/2+t<tTswitch. During this time interval the switchM1still off and the switchM2still included. A resonance circuit 5 generates in this time interval quarter, a negative sine wave, illustrative denoted by N. Fig with W4.

Consequently, the currentIrthus, is negative during this time intervalt4. Therefore, the diodeD1allows the flow of negative currentIr. However, the diodeD2that is polarized oppositely to the diodeD1does not allow the flow of negative currentIr. From Fig it is obvious that the currentIresagain flows through the output.

Finally, the voltage capacity ofVC(t)early in the fourth period of time t4is:

Vc(t=Tswitch/2)+τ)=Vout(13)

AndV1:

V1(Tswitch2<tTswitch2+2t)=Vin2+Vout(14)

This results in the amplitude of the fourth, negative sinusoidal half-waveW4.

I^4=-Vin2Zres(15)

The behavior of the current shows that only two sinusoidal half wave, namelyW2 andW4proceed through the exit. Therefore, output currentIoutconsists of two sinusoidal half-wavesW2andW4the switching periodTswitch. Therefore, the average output current can be calculated:

I^out=Vin2πZres2TresTswitch=VinTresπZresTswic h(16)

The functionality of the circuit 1 power supply in accordance with the invention and the resulting function of increasing voltage will now be explained in more detail. Topology diagram 1 power supply makes two of the four half-waves (in particular, every second of four half-waves) of the resonance current ofIresnot flow through the output, i.e. the load. Relatively Fig.9 on Fig, the first and third half-waveW1andW3not flow through the output, as can be seen from figures 9 and 11.

This respective half-wave is, for example,I1=(-Vout+Vin/2)Zreswith reference to the first waveW1 Fig. Taking into account the initial condition for the voltage drop on the tankCresand the voltage dropV1at the resonant circuit 5, the value of the voltage drop on the tankCresafter the first half-waveW1equal to output voltageVout. Therefore, for the next half-waveW2allowable stress get in the series connection of a voltage drop corresponding to theVouton capacityCresand half of the input voltageVin /2.

However, output voltageVoutalways acts against the second half-waveW2and, therefore, half of the input voltage, namelyVin/2always remains at the top, causing the current flowing through the load. Therefore, the second and fourth half-waveW2andW4flow through the load, and the current amplitude does not depend on the load voltage when the load voltage is greater than the input voltageVin.

Therefore, the present invention provides a circuit 1 power supply, in particular the topology of the Converter, which can be used for lighting automotive LED/OLED or General lighting LED/OLED, fed from the battery, so as not only stood the focus of DSRC-I, which is preferably used for the above applications, but thanks to the inventive topology diagram 1 power supply provides a voltage to provide a higher output voltageVoutthan the input voltageVinwithout the need of additional components. First of all, dimming LED/OLED can be realized by reducing the switching frequencyfswitch. Waveforms with reduced switching frequency is depicted in Fig.6.

In an additional embodiment may be additionally provided with a control loop, i.e. the feedback loop. The feedback circuit, for example, measured the current or voltage LED, sent this signal to the controller and regulate accordingly the control signals of the electronic switches.

In conclusion, a new circuit topology for the power source, in accordance with the present invention offers essentially the same General advantages as traditional pre is OBRAZOVATEL DSRC-I, but, in addition, it provides a higher output voltageVoutthan the input voltageVin.

Despite the fact that the new scheme of power supply can be considered as disadvantageous, since the conductive part through two diodesD1andD2for output voltageVoutlower than the input voltageVinactually it will not cause any problems, as a direct threshold voltage connected load, in particular, LED results in high output voltageVout. This blocks the flow of current if the inverter does not operate.

In General, the Converter provides the advantage is that no reading of current and no current control, in addition, provide a very compact scheme combined with increasing voltage. Diagram of power supply, in accordance with the present invention is, above all, easy to construct, simple to manage and provides high efficiency. It will be understood that the same advantages are effective for a device in accordance with the invention, containing a diagram of the power supply.

Although the invention is illustrated and described in detail in the drawings and in the preceding description, such illustration and description should be considered as explanatory or illustrative and not restrictive, the invention is not limited to those disclosed by the embodiment. Other changes in the disclosed version of the implementation can be understood and implemented by experts in the field of technology in the implementation of the claimed invention from an examination of the drawings, the disclosure and the accompanying claims.

In the claims the word “comprising” does not exclude other elements or steps, and the singular does not exclude a plurality. One item or another device may perform the functions of several items listed in the claims. The mere fact that certain measures are listed in mutually different dependent claims of the Britania, does not indicate that a combination of these measures cannot be advantageously used.

Any reference signs in the claims should not be construed as limiting the scope of the volume.

1. Diagram (1) power supply, containing
input contacts (17, 19)intended for connection diagram (1) power source (7) power DC
two output contacts intended for connection diagram (11) of the load circuit (1) power supply,
bridge circuit (3)containing at least two series-connected switch (M1,M2)connected between the two output contacts,
resonant circuit (5)connected at one end with one or more input pins and connected at the other end with interconnect (15), at least two switches (M1,M2) of the bridge circuit (3), and
at least two diodes (D1, D2), and the first diode (D1) connected between the first input contact is provided for connecting the positive contact spring (7) energy and the first end of the contact serially connected switches, and the first terminal contact connected to the first output contact, and a second diode (D2) connected between the second input contact is provided for connecting the negative contact spring (7) energy and the second end of the contact serially connected switches, and the second terminal contact connected to the second output contact.

2. Diagram (1) power supply according to claim 1, in which the first diode (D1) polarized relative to the assigned switch (M1so that allowed the flow of negative resonant current (Ir), and the second diode (D 2) polarized relative to the assigned switch (M2so that allowed the flow of positive resonant current (Ir).

3. Diagram (1) power supply according to claim 1, in which the resonant circuit (5) is a serial resonant circuit containing inductance (Lres) and capacity (Cres).

4. Diagram (1) power supply according to claim 1, in which the resonant circuit (5) connected to input contacts (17, 19).

5. Diagram (1) power supply according to claim 1, in which capacity (Cres) is divided into two partial capacity, and each partial capacity (Cres/2) contains half the resonant capacitance (Cres/mi> ), with each partial capacity connected to input contacts (17, 19).

6. Diagram (1) power supply according to claim 1, in which at least two switches (M1,M2) resonant circuit (5) are field-effect transistors with MOS structure (MOSFET).

7. Diagram (1) power supply according to claim 1, additionally containing unit (14) controls, which are designed to ensure the maximum frequency (fswitcha ) switch of the bridge circuit (3), which is in the range from 10% to 50% of the resonant frequency (fres) resonant circuit (5).

8. Diagram (1) power supply according to claim 1, additionally containing unit (14) controls, which are designed to ensure the maximum frequency (fswitcha ) switch of the bridge circuit (3), which the traveler is in the range of half the resonance frequency ( fres) resonant circuit (5).

9. Diagram (1) power supply according to claim 7, in which the unit (14) controls are designed to provide toggle switches (M1,M2) of the bridge circuit (3) with a duty cycle of 50%.

10. Device (21)containing the source (7) energy scheme (11) and the load circuit (1) power supply according to claim 1, for power supply circuit (11) of the load.

11. Device (21) of claim 10, further containing an output filter (13) between the diagram (1) power supply and circuit (11) of the load.



 

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4 cl, 19 dwg

FIELD: physics, control.

SUBSTANCE: invention relates to synchronising settings in a home control system such as settings for lighting scenes in a lighting system with a plurality of light units. The basic idea of the invention is to synchronise settings such as lighting scene settings in a home control system with a network of devices such as light units and multiple control devices for controlling the network devices. An embodiment of the invention provides a device (Sync) for synchronising settings in a home control system comprising memory (12) for storing settings of one or more of devices (L1-L9) of the home control system, a communication unit (14) for receiving signals (16) from and transmitting signals (18) to control devices (RC3-RC4) of the home control system, and a processor (10) for synchronising stored settings in the home control system upon receiving a signal (16) from a control device (RC3, RC4) of the home control system by transmitting a synchronisation signal (18). All control devices may have access to all settings.

EFFECT: simplifying device control due to that a user may control all settings with one control device and does not have to remember which settings are stored in which control device.

4 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: power supply adapter (20) is designed for lighting unit (50) that has solid-state source (50a, 50b, 50c) of light. Power supply adapter (20) contains input (22) for connection with the main power supply source, power transmission module (40a, 40b, 40c, 140a) connected to input (22) and providing output signal fit to activate solid-state source (50a, 50b, 50c) of light and controller (30) that receives voltage signal from input (22) and is capable to send control signal to power transmission module (40a, 40b, 40c, 140a) in order to decrease power received from the input (22). Power supply adapter (20) receives current from the input (22) as a function of voltage at input (22) so that power supply adapter (20) is a variable resistor for supply mains.

EFFECT: improving efficiency of power transmission to solid-state source of light.

15 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: control unit comprises a microphone unit, a delay unit, a hysteresis unit with a source of reference voltage. In the microphone unit the point of connection of supply resistance and microphone is via a reservoir connected to the first inlet of the first comparator. This input via a filter-divider is connected with the second input of the first comparator, and via the first feedback it is connected to the output of the first comparator. The output of the first comparator is also connected with a signal input of the delay unit, the signal output of the latter is connected to the signal input of the hysteresis unit, more specifically - to the first input of the second comparator. The second input of the second comparator is connected to a source of reference voltage, and via the second feedback it is connected to the output of the second comparator.

EFFECT: higher accuracy of setting a level of control unit actuation, lower material intensity.

6 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: library of indexed and preset lighting effects or show are searched by the search engine on the basis of data submitted by a user/designer in order to identify a set of effects or shows having attributes which are related in certain extent to the data submitted by the user. Search results are presented then to the user; such results i.e. controlled subcollection of intellectually selected lighting effects or light shows which can be ranged in terms of relevancy and any of them can be easily selected by the user. The user can use one or more effects of shows from search results as is to be implemented by lighting system or change one or more effects of shows from search results in order to specify some aspect(s)/show(s) in compliance with the user preferences.

EFFECT: simplifying lighting system.

15 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: main idea of the invention consists in improvement of presentation of a lighting stage by means of automatic interference compensation, as for example of an outside lighting source or a dynamic event of disturbance of the presented lighting stage. A version of implementation of the invention provides for a light control method for automatic presentation of the lighting stage by means of a lighting system. Besides, light control system (10) is adapted for surveying of the presented lighting stage for occurrence of interference (14, 20, 22, 24) and automatic repeated configuration of the lighting system so that the surveyed occurrence of interference can be compensated (16, 18, 12).

EFFECT: improving quality of automatic presentation of a lighting stage.

5 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: claimed systems and method of implementation for uninterrupted power supply source having positive DC bus, neutral DC bus and negative DC bus; in one embodiment as uninterrupted power supply source it includes circuit of battery charger having inductance coil and the first and second outputs of charger. The first switch connected to the first output of inductance coil is configured with possibility of connection of positive DC bus with the first charger output. The second switch connected to the second output of inductance coil is configured with possibility of connection of negative DC bus with inductance coil. Neutral DC bus can be connected to the second output of charger. Circuit of battery charger can be configured in order to obtain energy from at least one positive DC bus and negative DC bus for charging of accumulator battery which is connected to the first and second outputs of the charger.

EFFECT: providing improved distribution of energy in accumulator battery.

24 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: bidirectional converter of DC to DC comprises the following: the first pair of terminals, which connects the converter with the first electric circuit, having a source of supply, and includes a positive terminal and a negative terminal; the second pair of terminals, which connects the converter with the second electric circuit and includes a positive terminal and a negative terminal; an accumulating element for temporary accumulation of electric energy; and a switching circuit connected to the first pair of terminals, the second pair of terminals and an accumulating element, besides, in the first mode of operation electric energy is sent from the first electric circuit into the second electric circuit via the accumulating element, besides, the bidirectional converter of DC to DC maintains controlled drop of voltage on the first pair of terminals for picking energy from the first circuit during controlled voltage drop, and in the second mode of operation electric energy is sent from the second electric circuit into the first electric circuit via the accumulating element.

EFFECT: improved efficiency.

27 cl, 15 dwg

FIELD: electrical engineering.

SUBSTANCE: power converter is intended for connection to source of electrical signal, in particular to voltage source (Vcc) for reception of control signal (A(t)) at inlet for transformation, and comprises circuit of the first controller (L1, C1, M1, D1) of width-pulse modulation of step down type, and circuit of energy recovery for control of bidirectional energy flow to load and from load to source.

EFFECT: such circuit of energy recovery may be successfully realised with application of circuit of the second controller of step down width-pulse modulation.

15 cl, 7 dwg, 1 tbl

FIELD: converter engineering; power supply to process loads demanding deep output voltage regulation and active power factor correction.

SUBSTANCE: proposed method for regulating output voltage of ac-to-dc converter that has uncontrolled bridge rectifier, LC ripple filter with dual-operation switch, input current sensor, and input voltage sensor includes comparison of input current sensor signal with reference signal generated by input voltage sensor and turn-on of dual-operation switch in case reference signal exceeds input current sensor signal or its turn-off in case input current sensor signal is higher than reference signal. To this end transfer ratio of input voltage sensor is modulated, its high value KH being maintained in ON-position of dual-operation switch and low value KL, in its OFF-position; at the same time depth of modulation of input voltage sensor transfer ratio ΔK = (KH - KL) is maintained constant.

EFFECT: enlarged output voltage regulation range at desired power factor value.

1 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: invention pertains to the field of electrical engineering and can be used in (1) a power supply source. The power-supply source circuit contains: input contacts (17, 19) intended for connection of the power-supply source circuit (1) to the direct-current energy source circuit (7), two output contacts intended for connection of the load circuit (11) the power-supply source circuit (1), a bridge circuit (3) containing at least two in-series switches (M1, M2) interconnected between two output contacts, a resonant circuit (5) connected at its one end to one or more input contacts and at its other end to the interconnecting track (15) of at least two switches (M1, M2) of the bridge circuit (3) and at least two diodes (D1, D2), at that the first diode (D1) is coupled between the first input contact intended to connect a positive contact of the direct-current energy source (7) and the first end contact of the in-series switches. The first end contact is connected to the first output contact, the second diode (D2) is coupled between the input contact intended for connection to a negative contact of the energy source circuit (7) and the second end contact of the in-series switches, at that the second end contact is connected to the second output contact.

EFFECT: increasing supply voltage.

11 cl, 13 dwg

FIELD: electricity.

SUBSTANCE: power source comprises a current resonance circuit configured to control the transformer; to the primary side of which a resonant circuit with a switching element is connected, configured to periodically turn on and off, and a controller configured to control the switching element so that the switching element operates in a continuous mode in which it performs continuously repeated turn-on and turn-off, or in intermittent mode, in which it performs intermittently repeated turn-on and turn-off, in accordance with an external signal indicating the operation in continuous mode or in intermittent mode. The power source also comprises a voltage indicator configured to determine the voltage on the secondary side of the transformer and a switching unit configured so that in the intermittent operating mode of the switching element set by the controller in accordance with the external signal indicating intermittent operation and when the voltage indicator detects voltage drop lower than the set value of the first threshold voltage, it affects the controller, providing a transfer of the switching element into continuous operation mode.

EFFECT: providing required power input even in the standby mode.

8 cl, 8 dwg

FIELD: converter engineering; power supply to process loads demanding deep output voltage regulation and active power factor correction.

SUBSTANCE: proposed method for regulating output voltage of ac-to-dc converter that has uncontrolled bridge rectifier, LC ripple filter with dual-operation switch, input current sensor, and input voltage sensor includes comparison of input current sensor signal with reference signal generated by input voltage sensor and turn-on of dual-operation switch in case reference signal exceeds input current sensor signal or its turn-off in case input current sensor signal is higher than reference signal. To this end transfer ratio of input voltage sensor is modulated, its high value KH being maintained in ON-position of dual-operation switch and low value KL, in its OFF-position; at the same time depth of modulation of input voltage sensor transfer ratio ΔK = (KH - KL) is maintained constant.

EFFECT: enlarged output voltage regulation range at desired power factor value.

1 cl, 3 dwg

FIELD: electrical engineering.

SUBSTANCE: power converter is intended for connection to source of electrical signal, in particular to voltage source (Vcc) for reception of control signal (A(t)) at inlet for transformation, and comprises circuit of the first controller (L1, C1, M1, D1) of width-pulse modulation of step down type, and circuit of energy recovery for control of bidirectional energy flow to load and from load to source.

EFFECT: such circuit of energy recovery may be successfully realised with application of circuit of the second controller of step down width-pulse modulation.

15 cl, 7 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: bidirectional converter of DC to DC comprises the following: the first pair of terminals, which connects the converter with the first electric circuit, having a source of supply, and includes a positive terminal and a negative terminal; the second pair of terminals, which connects the converter with the second electric circuit and includes a positive terminal and a negative terminal; an accumulating element for temporary accumulation of electric energy; and a switching circuit connected to the first pair of terminals, the second pair of terminals and an accumulating element, besides, in the first mode of operation electric energy is sent from the first electric circuit into the second electric circuit via the accumulating element, besides, the bidirectional converter of DC to DC maintains controlled drop of voltage on the first pair of terminals for picking energy from the first circuit during controlled voltage drop, and in the second mode of operation electric energy is sent from the second electric circuit into the first electric circuit via the accumulating element.

EFFECT: improved efficiency.

27 cl, 15 dwg

FIELD: electricity.

SUBSTANCE: claimed systems and method of implementation for uninterrupted power supply source having positive DC bus, neutral DC bus and negative DC bus; in one embodiment as uninterrupted power supply source it includes circuit of battery charger having inductance coil and the first and second outputs of charger. The first switch connected to the first output of inductance coil is configured with possibility of connection of positive DC bus with the first charger output. The second switch connected to the second output of inductance coil is configured with possibility of connection of negative DC bus with inductance coil. Neutral DC bus can be connected to the second output of charger. Circuit of battery charger can be configured in order to obtain energy from at least one positive DC bus and negative DC bus for charging of accumulator battery which is connected to the first and second outputs of the charger.

EFFECT: providing improved distribution of energy in accumulator battery.

24 cl, 7 dwg

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