High-power-factor colored lamp control circuit and colored lamp equipment

Abstract

The utility model discloses a high-power-factor colored lamp control circuit and colored lamp equipment, which are applied to the technical field of power electronics and are used for solving the problem that the existing high-power-factor colored lamp control circuit is complicated in structure. The first end of an external power supply is connected with the first end of a power factor correction circuit and the first end of a color light constant current circuit, and the second end of the external power supply is connected with the second end of the power factor correction circuit and the second end of the color light constant current circuit. The first end of the white light constant current circuit is connected with the third end of the power factor correction circuit, the second end of the white light constant current circuit is connected with the fourth end of the power factor correction circuit, the third end of the white light constant current circuit is connected with the first end of the white light lamp, and the fourth end of the white light constant current circuit is connected with the second end of the white light lamp. Therefore, the power factor correction circuit is arranged to correct the power factor of the boost circuit. The color light constant-current circuit is directly connected with an external power supply, and a DC-DC circuit does not need to be additionally arranged, so that the circuit is effectively simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronics, in particular to a high power factor colored light control circuit and colored light equipment. Background Art

[0002] The power factor refers to the cosine value of the phase difference between the input voltage and the input current. A lower power factor will increase the loss of the power grid. In order to meet the energy efficiency and safety requirements of light source products, existing light source products need to achieve a high power factor.

[0003] At present, the existing high power factor colored light control circuit includes a power factor correction circuit, a white light constant current circuit, a constant voltage DC-DC circuit and a colored light constant current circuit. The input of the external power supply is corrected by the power factor correction circuit, and then input into the white light constant current circuit and the constant voltage DC-DC circuit respectively, and then transmitted to the colored light constant current circuit through the constant voltage DC-DC circuit to realize the power supply for the colored lights (red light, green light and blue light) and the white light. Among them, since the voltage difference between the output voltage of the power factor correction circuit and the working voltage of the colored lights is large, it is necessary to set a constant voltage DC-DC circuit for voltage regulation. This high power factor colored light control circuit has a complex structure and high cost. Utility Model Content

[0004] The embodiment of the utility model provides a high power factor colored light control circuit and a colored light device, which are used to solve the problem of complex structure of the high power factor colored light control circuit in the prior art.

[0005] The technical solution provided by the embodiment of the utility model is as follows:

[0006] On the one hand, the embodiment of the utility model provides a high power factor colored light control circuit, including: a power factor correction circuit, a white light constant current circuit, a colored light constant current circuit, a white light lamp, a red light lamp, a green light lamp, a blue light lamp and a control module;

[0007] The first end of the external power supply is connected to the first end of the power factor correction circuit and the first end of the color light constant current circuit respectively, and the second end of the external power supply is connected to the second end of the power factor correction circuit and the second end of the color light constant current circuit respectively;

[0008] The first end of the white light constant current circuit is connected to the third end of the power factor correction circuit, the second end of the white light constant current circuit is connected to the fourth end of the power factor correction circuit, the third end of the white light constant current circuit is connected to the first end of the white light lamp, the fourth end of the white light constant current circuit is connected to the second end of the white light lamp, and the fifth end of the white light constant current circuit is connected to the first end of the control module;

[0009] The third end of the colorful light constant current circuit is connected to the first ends of the red light lamp, the green light lamp and the blue light lamp respectively, the fourth end of the colorful light constant current circuit is connected to the second end of the red light lamp, the fifth end of the colorful light constant current circuit is connected to the second end of the green light lamp, the sixth end of the colorful light constant current circuit is connected to the second end of the blue light lamp, and the seventh end of the colorful light constant current circuit is connected to the second end of the control module.

[0010] In a possible implementation, the white light constant current circuit includes: a first constant current chip;

[0011] The third end of the power factor correction circuit is connected to the first end of the white light lamp and the input end of the first constant current chip respectively;

[0012] The output end of the first constant current chip is connected to the second end of the white light lamp, the control end of the first constant current chip is connected to the first end of the control module; and the grounding end of the first constant current chip is connected to the ground.

[0013] In a possible implementation, the white light constant current circuit includes: a first constant current chip and a switching power supply circuit;

[0014] The input end of the first constant current chip is connected to the third end of the power factor correction circuit, the output end of the first constant current chip is connected to the first end of the switch power supply circuit, the control end of the first constant current chip is connected to the first end of the control module; the ground end of the first constant current chip is connected to the ground;

[0015] The second end of the switching power supply circuit is connected to the third end of the power factor correction circuit, the third end of the switching power supply circuit is connected to the first end of the white light lamp, and the fourth end of the switching power supply circuit is connected to the second end of the white light lamp.

[0016] In a possible implementation, the color light constant current circuit includes: a second constant current chip;

[0017] The first end of the external power supply is respectively connected to the first end of the red light, the first end of the green light, the first end of the blue light and the input end of the second constant current chip;

[0018] The first output end of the second constant current chip is connected to the second end of the red light lamp, the second output end of the second constant current chip is connected to the second end of the green light lamp, the third output end of the second constant current chip is connected to the second end of the blue light lamp, the control end of the second constant current chip is connected to the second end of the control module, and the ground end of the second constant current chip is connected to the ground.

[0019] In a possible implementation manner, the control module includes: a controller or a communication circuit.

[0020] In a possible implementation, the power factor correction circuit includes: a BOOST circuit;

[0021] The first input end of the BOOST circuit is connected to the first end of the external power supply, the second input end of the BOOST circuit is connected to the second end of the external power supply, the first output end of the BOOST circuit is connected to the first end of the white light constant current circuit, and the second output end of the BOOST circuit is connected to the second end of the white light constant current circuit.

[0022] In a possible implementation manner, the high power factor colored light control circuit further includes: a rectifier circuit and a first capacitor;

[0023] The first end of the rectifier circuit is connected to the first end of the external power supply, the second end of the rectifier circuit is connected to the second end of the external power supply, the third end of the rectifier circuit is respectively connected to the first end of the power factor correction circuit and the first end of the color light constant current circuit, and the fourth end of the rectifier circuit is connected to the ground;

[0024] The first end of the first capacitor is connected to the third end of the rectifier circuit, and the second end of the first capacitor is connected to the ground.

[0025] In a possible implementation, the high power factor colored light control circuit further includes: an auxiliary power supply circuit;

[0026] The first end of the auxiliary power supply circuit is connected to the third end of the rectifier circuit, and the second end of the auxiliary power supply circuit is connected to the control module.

[0027] In a possible implementation manner, the high power factor colored light control circuit further includes: an anti-interference circuit;

[0028] The first end of the anti-interference circuit is connected to the first end of the external power supply, and the second end of the anti-interference circuit is connected to the first end of the rectifier circuit.

[0029] On the other hand, an embodiment of the utility model provides a colored light device, including: the above-mentioned high power factor colored light control circuit and power supply provided in the embodiment of the utility model; the first end of the high power factor colored light control circuit is connected to the first end of the power supply, and the second end of the high power factor colored light control circuit is connected to the second end of the power supply.

[0030] The beneficial effects of the embodiments of the utility model are as follows:

[0031] In the embodiment of the utility model, the high power factor colored light control circuit can not only realize constant current power supply for white light and colored light, but also correct the voltage and current of the external power input by setting the power factor correction circuit, so that the phase of the voltage and current of the external power input is consistent, thereby improving the power factor of the control circuit. The colored light constant current circuit is directly connected to the external power supply, and there is no need to set up an additional DC-DC circuit in the circuit for voltage regulation, which effectively simplifies the design of the high power factor colored light control circuit.

[0032] Other features and advantages of the utility model will be described in the subsequent description, and partly will become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0034] Figure 1 This is a schematic diagram of the first circuit structure of the high power factor colored light control circuit in the embodiment of the utility model;

[0035] Figure 2 This is a schematic diagram of a second circuit structure of a high power factor colored light control circuit in an embodiment of the utility model;

[0036] Figure 3 This is a third circuit structure schematic diagram of the high power factor colored light control circuit in the embodiment of the utility model;

[0037] Figure 4 This is a fourth circuit structure schematic diagram of the high power factor colored light control circuit in the embodiment of the utility model;

[0038] Figure 5 This is a fifth circuit structure schematic diagram of the high power factor colored light control circuit in the embodiment of the utility model;

[0039] Figure 6 This is a sixth circuit structure schematic diagram of the high power factor colored light control circuit in the embodiment of the utility model;

[0040] Figure 7 This is a seventh circuit structure schematic diagram of the high power factor colored light control circuit in the embodiment of the utility model;

[0041] Figure 8 This is a schematic diagram of the eighth circuit structure of the high power factor colored light control circuit in the embodiment of the utility model;

[0042] Fig. 9 This is a ninth circuit structure schematic diagram of the high power factor colored light control circuit in the embodiment of the utility model;

[0043] Fig.10 This is a tenth circuit structure schematic diagram of a high power factor colored light control circuit in an embodiment of the utility model;

[0044] Fig.11The figure is a schematic diagram of a circuit structure of a colored light device in an embodiment of the utility model. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] The utility model embodiment provides a high power factor colored light control circuit, see Figure 1 As shown, the high power factor colored light control circuit includes: a power factor correction circuit 110, a white light constant current circuit 120, a colored light constant current circuit 130, a white light lamp W, a red light lamp R, a green light lamp G, a blue light lamp B and a control module 140;

[0047] The first end of the external power supply is connected to the first end of the power factor correction circuit 110 and the first end of the color light constant current circuit 130 respectively, and the second end of the external power supply is connected to the second end of the power factor correction circuit 110 and the second end of the color light constant current circuit 130 respectively;

[0048] A first end of the white light constant current circuit 120 is connected to a first end of the power factor correction circuit 110, a second end of the white light constant current circuit 120 is connected to a second end of the power factor correction circuit 110, a third end of the white light constant current circuit 120 is connected to a first end of the white light lamp W, a fourth end of the white light constant current circuit 120 is connected to a second end of the white light lamp W, and a fifth end of the white light constant current circuit 120 is connected to a first end of the control module 140;

[0049] The third end of the colorful light constant current circuit 130 is connected to the first ends of the red light lamp R, the green light lamp G and the blue light lamp B respectively, the fourth end of the colorful light constant current circuit 130 is connected to the second end of the red light lamp R, the fifth end of the colorful light constant current circuit 130 is connected to the second end of the green light lamp G, the sixth end of the colorful light constant current circuit 130 is connected to the second end of the blue light lamp B, and the seventh end of the colorful light constant current circuit 130 is connected to the second end of the control module 140.

[0050] exist Figure 1In the high power factor colored light control circuit shown, the power factor correction circuit 110 is used to correct the voltage and current input by the external power supply so that the phases of the voltage and current input by the external power supply are consistent. The white light constant current circuit 120 is used to adjust the working current input to the white light lamp W, and the color light constant current circuit 130 is used to adjust the working current input to the red light lamp R, the green light lamp G and the blue light lamp B. The controller is used to input the white light control signal to the white light constant current circuit 120, and input the color light control signal to the color light constant current circuit 130. The voltage and current provided by the external power supply are corrected by the power factor correction circuit 110, and the corrected current is input to the white light constant current circuit 120. The white light constant current circuit 120 adjusts the corrected current to the working current of the white light lamp W and then inputs it to the white light lamp W. The current input from the external power supply is input to the color light constant current circuit 130. After the color light constant current circuit 130 adjusts the current input from the external power supply to the working current of the red light R, the green light G and the blue light B respectively, it is input to the red light R, the green light G and the blue light B accordingly. Among them, in the high power factor color light control circuit, the number of each color light can be one or more. Taking the white light W as an example, when the number of white light W is multiple, it can be at least one of multiple white light W connected in parallel, a light string of a white light and a light string of multiple white light connected in parallel.

[0051] In this way, the high power factor colored light control circuit can not only realize constant current power supply for white light and colored light, but also correct the voltage and current of the external power input by setting the power factor correction circuit, so that the phase of the voltage and current of the external power input is consistent, thereby improving the power factor of the control circuit. The colored light constant current circuit is directly connected to the external power supply, and there is no need to set up an additional DC-DC circuit in the circuit for voltage regulation, which effectively simplifies the design of the high power factor colored light control circuit.

[0052] In specific implementation, in the high power factor colored light control circuit provided in the embodiment of the present application, the white light constant current circuit 120 has a variety of structures to realize its function, and the white light constant current circuit 120 can be a linear constant current circuit or a switch constant current circuit. Figure 2 As shown, when the white light constant current circuit 120 is a linear constant current circuit, the white light constant current circuit 120 includes: a first constant current chip;

[0053] The third terminal of the power factor correction circuit 110 is connected to the first terminal of the white light lamp W and the input terminal of the first constant current chip respectively;

[0054] The output end of the first constant current chip is connected to the second end of the white light lamp W, the control end of the first constant current chip is connected to the first end of the control module 140; and the ground end of the first constant current chip is connected to the ground.

[0055] exist Figure 2In the high power factor colored light control circuit shown, the first constant current chip is used to adjust the working current of the white light lamp W according to the white light control signal input by the control module 140, and realize the linear constant current power supply of the white light lamp W. The first constant current chip has multiple output terminals, each of which can be connected to the white light lamp W, thereby realizing the constant current power supply of multiple white light lamps W.

[0056] In specific implementation, in the high power factor colored light control circuit provided in the embodiment of the present application, the white light constant current circuit 120 has a variety of structures to realize its functions, for example Figure 3 As shown, when the white light constant current circuit 120 is a switch constant current circuit, the white light constant current circuit 120 includes: a first constant current chip and a switch power supply circuit;

[0057] The input end of the first constant current chip is connected to the third end of the power factor correction circuit 110, the output end of the first constant current chip is connected to the first end of the switch power supply circuit, the control end of the first constant current chip is connected to the first end of the control module 140; the ground end of the first constant current chip is connected to the ground;

[0058] The second end of the switching power supply circuit is connected to the third end of the power factor correction circuit 110 , the third end of the switching power supply circuit is connected to the first end of the white light lamp W, and the fourth end of the switching power supply circuit is connected to the second end of the white light lamp W.

[0059] exist Figure 3 In the high power factor colored light control circuit shown, the white light control signal input to the first constant current chip is a PWM (Pulse Width Modulation) waveform, and the first constant current chip adjusts the working current of the white light lamp W under the control of the PWM waveform; the switching power supply circuit adjusts the voltage output by the first constant current chip to obtain the working voltage of the white light lamp W, and inputs the working current and the working voltage to the white light lamp W to realize constant current power supply of the white light lamp W. A plurality of white light lamps W connected in series can be connected between the third and fourth terminals of the switching power supply circuit. Specifically, the switching power supply circuit can be a BUCK circuit, and the corresponding voltage adjustment is step-down.

[0060] In specific implementation, in the high power factor colored light control circuit provided in the embodiment of the present application, the colored light constant current circuit 130 has a variety of structures to realize its function. Similar to the white light constant current circuit 120, the colored light constant current circuit 130 can be a linear constant current circuit or a switch constant current circuit. Figure 4 As shown, when the color light constant current circuit 130 is a linear constant current circuit, the color light constant current circuit 130 includes: a second constant current chip;

[0061] The first end of the external power supply is respectively connected to the first end of the red light R, the first end of the green light G, the first end of the blue light B and the input end of the second constant current chip;

[0062] The first output end of the second constant current chip is connected to the second end of the red light lamp R, the second output end of the second constant current chip is connected to the second end of the green light lamp G, the third output end of the second constant current chip is connected to the second end of the blue light lamp B, the control end of the second constant current chip is connected to the second end of the control module 140, and the ground end of the second constant current chip is connected to the ground.

[0063] exist Figure 4 In the high power factor colored light control circuit shown, the second constant current chip is used to adjust the current flowing through the red light R, the green light G and the blue light B to the working current according to the colored light control signal input by the control module 140, and realize the linear constant current power supply of the red light R, the green light G and the blue light B. The first constant current chip and the second constant current chip can be constant current chips of the same model.

[0064] It is worth mentioning that when the white light constant current circuit 120 and the color light constant current circuit 130 are both linear constant current circuits, the two circuits can share a constant current chip, that is, the first constant current chip and the second constant current chip can also be a constant current chip, see Figure 5 As shown, the white light lamp W, the red light lamp R, the green light lamp G and the blue light lamp B are connected to different output ends of the constant current chip respectively. The constant current chip adjusts the current flowing through the white light lamp W, the red light lamp R, the green light lamp G and the blue light lamp B to the working current according to the white light control signal and the color light control signal, so as to realize the linear constant current power supply of the white light lamp W, the red light lamp R, the green light lamp G and the blue light lamp B.

[0065] In one possible implementation, for example Figure 6 As shown, when the color light constant current circuit 130 is a switch constant current circuit, the color light constant current circuit 130 includes: three switch constant current sub-circuits; each switch constant current sub-circuit includes a second constant current chip and a switch power supply circuit;

[0066] The input end of the second constant current chip is connected to the first end of the external power supply, the output end of the second constant current chip is connected to the first end of the switching power supply circuit, and the control end of the second constant current chip is connected to the first end of the control module 140; the ground end of the second constant current chip is connected to the ground; the second end of the switching power supply circuit is connected to the third end of the power factor correction circuit 110, the third end of the switching power supply circuit serves as the first output end of the switching constant current sub-circuit, and the fourth end of the switching power supply circuit serves as the second output end of the switching constant current sub-circuit.

[0067] In the three switch constant current sub-circuits, the first output end of the first switch constant current sub-circuit is connected to the first end of the red light lamp R, and the second output end of the first switch constant current sub-circuit is connected to the second end of the red light lamp R; the first output end of the second switch constant current sub-circuit is connected to the first end of the green light lamp G, and the second output end of the second switch constant current sub-circuit is connected to the second end of the green light lamp G; the first output end of the third switch constant current sub-circuit is connected to the first end of the blue light lamp B, and the second output end of the third switch constant current sub-circuit is connected to the second end of the blue light lamp B.

[0068] exist Figure 6 In the high power factor colored light control circuit shown, in each switch constant current sub-circuit, the color light control signal input to the second constant current chip is a PWM waveform, and the second constant current chip adjusts the working current of the lamp of the corresponding color under the control of the PWM waveform; the switch power supply circuit adjusts the voltage output by the first constant current chip to obtain the working voltage of the lamp of the corresponding color, and inputs the working current and the working voltage to the connected lamp of the corresponding color to realize the constant current power supply of the red light R, the green light G and the blue light B. A plurality of lamps of the corresponding color connected in series can be connected between the first output terminal and the second output terminal of each switch constant current sub-circuit. Specifically, the switch power supply circuit can be a BUCK circuit, and the voltage adjustment is boost.

[0069] In specific implementation, in the high power factor colored light control circuit provided in the embodiment of the present application, the control module 140 has a variety of structures to realize its functions, and the control module 140 includes: a controller or a communication circuit.

[0070] The controller is used to generate a white light control signal according to the working current and working voltage of the white light lamp W, and input the white light control signal to the white light constant current circuit 120. The controller is also used to generate a color light control signal according to the working current and working voltage of the red light lamp R, the green light lamp G and the blue light lamp B, and input the color light control signal to the color light constant current circuit 130. The communication circuit is used to receive an externally input white light control signal, and input the white light control signal to the white light constant current circuit 120. The controller is also used to receive an externally input color light control signal, and input the color light control signal to the color light constant current circuit 130. Among them, the communication circuit includes at least one of a Bluetooth communication circuit, a WIFI communication circuit and a ZigBee communication circuit.

[0071] In the specific implementation, in the high power factor colored light control circuit provided in the embodiment of the present application, the power factor correction circuit 110 has a variety of structures to realize its function, and the power factor correction circuit 110 adopts an active power factor correction (APFC) circuit. Specifically, for example Figure 7 As shown, the power factor correction circuit 110 includes: a BOOST circuit;

[0072] The first input end of the BOOST circuit is connected to the first end of the external power supply, the second input end of the BOOST circuit is connected to the second end of the external power supply, the first output end of the BOOST circuit is connected to the first end of the white light constant current circuit 120, and the second output end of the BOOST circuit is connected to the second end of the white light constant current circuit 120.

[0073] exist Figure 7 In the high power factor colored light control circuit shown in the figure, the BOOST circuit is a kind of active power factor correction circuit. The BOOST circuit mainly includes inductor L1, diode D1, capacitor C o , switch tube Q1. By controlling the on-time and off-time of the switch tube Q1 in the BOOST circuit, the phase difference between the voltage and current output by the rectifier circuit 150 can be adjusted to achieve power factor correction. In addition, the capacitor C o It has filtering function and sets capacitor C o The output voltage of the BOOST circuit can be filtered, so that the voltage input from the BOOST circuit to the white light constant current circuit is smooth and ripple-free, thereby achieving flicker-free control of the white light lamp. Figure 8 As shown, the non-stroboscopic colored light control circuit may further include: a rectifier circuit 150 and a first capacitor C1;

[0074] A first end of the rectifier circuit 150 is connected to a first end of an external power source, a second end of the rectifier circuit 150 is connected to a second end of the external power source, a third end of the rectifier circuit 150 is connected to a first end of the power factor correction circuit 110 and a first end of the color light constant current circuit 130, respectively, and a fourth end of the rectifier circuit 150 is connected to the ground;

[0075] A first end of the first capacitor C1 is connected to the third end of the rectifier circuit 150 , and a second end of the first capacitor C1 is connected to the ground.

[0076] exist Figure 8 In the high power factor colored light control circuit shown, the rectifier circuit 150 is used to convert the AC power input from the external power supply into DC power when the external power supply is an AC power supply. The external power supply can be a 220V AC power supply. The rectifier circuit 150 can be a rectifier H bridge composed of four diodes.

[0077] In one possible implementation, see Fig. 9 As shown, the non-stroboscopic colored light control circuit may further include: an auxiliary power supply circuit 160;

[0078] A first end of the auxiliary power supply circuit 160 is connected to a first end of the first capacitor C1 , and a second end of the auxiliary power supply circuit 160 is connected to the control module 140 .

[0079] exist Fig. 9 In the high power factor colored light control circuit shown, the auxiliary power supply circuit 160 is used to step down the voltage at the third terminal of the rectifier circuit 150 to obtain the power supply voltage of the control module 140 and input it to the control module 140 to power the control module 140. Specifically, the auxiliary power supply circuit 160 may include a DC-DC circuit, for example, a BUCK circuit.

[0080] In one possible implementation, see Fig.10 As shown, the non-stroboscopic colored light control circuit may further include: an anti-interference circuit 170;

[0081] A first end of the anti-interference circuit 170 is connected to a first end of the external power source, and a second end of the anti-interference circuit 170 is connected to a first end of the rectifier circuit 150 .

[0082] exist Fig.10 In the high power factor colored light control circuit shown, the anti-interference circuit 170 is used to filter out the electromagnetic interference (EMI) caused by the power input terminal. Specifically, the anti-interference circuit 170 includes an inductor and a resistor, wherein the inductor and the resistor are connected in parallel, one end of the inductor is connected to the first end of the external power supply, and the other end of the inductor is connected to the first end of the rectifier circuit 150.

[0083] In a possible implementation, a fuse is further provided on the connection between the second end of the external power supply and the second end of the rectifier circuit 150. The fuse is used to generate heat to melt the connection between the second end of the external power supply and the second end of the rectifier circuit 150 after the current flowing through the fuse exceeds its maximum current for a period of time, so as to achieve overcurrent protection.

[0084] Based on the same concept, the present utility model embodiment also provides a colored light device, see Fig.11 As shown, the colored light device 200 includes: the high power factor colored light control circuit 100 and a power supply 210 provided in the embodiment of the present application; the first end of the high power factor colored light control circuit 100 is connected to the first end of the power supply 210, and the second end of the high power factor colored light control circuit 100 is connected to the second end of the power supply 210. The power supply is a 220V AC power supply.

[0085] In the colored light device provided by the embodiment of the utility model, since the high power factor colored light control circuit can simplify the design of the control circuit while achieving a high power factor, the colored light device using the colored light control circuit also has corresponding advantages.

[0086] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0087] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high power factor colored light control circuit, characterized in that: include: Power factor correction circuit, white light constant current circuit, color light constant current circuit, white light lamp, red light lamp, green light lamp, blue light lamp and control module; The first end of the external power supply is connected to the first end of the power factor correction circuit and the first end of the color light constant current circuit respectively, and the second end of the external power supply is connected to the second end of the power factor correction circuit and the second end of the color light constant current circuit respectively; The first end of the white light constant current circuit is connected to the third end of the power factor correction circuit, the second end of the white light constant current circuit is connected to the fourth end of the power factor correction circuit, the third end of the white light constant current circuit is connected to the first end of the white light lamp, the fourth end of the white light constant current circuit is connected to the second end of the white light lamp, and the fifth end of the white light constant current circuit is connected to the first end of the control module; The third end of the colorful light constant current circuit is connected to the first ends of the red light lamp, the green light lamp and the blue light lamp respectively, the fourth end of the colorful light constant current circuit is connected to the second end of the red light lamp, the fifth end of the colorful light constant current circuit is connected to the second end of the green light lamp, the sixth end of the colorful light constant current circuit is connected to the second end of the blue light lamp, and the seventh end of the colorful light constant current circuit is connected to the second end of the control module.

2. The high power factor colored light control circuit according to claim 1, characterized in that: The white light constant current circuit comprises: a first constant current chip; The third end of the power factor correction circuit is connected to the first end of the white light lamp and the input end of the first constant current chip respectively; The output end of the first constant current chip is connected to the second end of the white light lamp, the control end of the first constant current chip is connected to the first end of the control module; and the ground end of the first constant current chip is connected to the ground.

3. The high power factor colored light control circuit according to claim 1, characterized in that: The white light constant current circuit comprises: a first constant current chip and a switching power supply circuit; The input end of the first constant current chip is connected to the third end of the power factor correction circuit, the output end of the first constant current chip is connected to the first end of the switch power supply circuit, the control end of the first constant current chip is connected to the first end of the control module; the ground end of the first constant current chip is connected to the ground; The second end of the switching power supply circuit is connected to the third end of the power factor correction circuit, the third end of the switching power supply circuit is connected to the first end of the white light lamp, and the fourth end of the switching power supply circuit is connected to the second end of the white light lamp.

4. The high power factor colored light control circuit according to claim 1, characterized in that: The color light constant current circuit comprises: a second constant current chip; The first end of the external power supply is respectively connected to the first end of the red light, the first end of the green light, the first end of the blue light and the input end of the second constant current chip; The first output end of the second constant current chip is connected to the second end of the red light lamp, the second output end of the second constant current chip is connected to the second end of the green light lamp, the third output end of the second constant current chip is connected to the second end of the blue light lamp, the control end of the second constant current chip is connected to the second end of the control module, and the ground end of the second constant current chip is connected to the ground.

5. The high power factor colored light control circuit according to claim 1, characterized in that: The control module includes: a controller or a communication circuit.

6. The high power factor colored light control circuit according to any one of claims 1 to 5, characterized in that: The power factor correction circuit comprises: a BOOST circuit; The first input end of the BOOST circuit is connected to the first end of the external power supply, the second input end of the BOOST circuit is connected to the second end of the external power supply, the first output end of the BOOST circuit is connected to the first end of the white light constant current circuit, and the second output end of the BOOST circuit is connected to the second end of the white light constant current circuit.

7. The high power factor colored light control circuit according to claim 6, characterized in that: Also includes: A rectifier circuit and a first capacitor; The first end of the rectifier circuit is connected to the first end of the external power supply, the second end of the rectifier circuit is connected to the second end of the external power supply, the third end of the rectifier circuit is respectively connected to the first end of the power factor correction circuit and the first end of the color light constant current circuit, and the fourth end of the rectifier circuit is connected to the ground; The first end of the first capacitor is connected to the third end of the rectifier circuit, and the second end of the first capacitor is connected to the ground.

8. The high power factor colored light control circuit according to claim 7, characterized in that: Also includes: Auxiliary power supply circuit; The first end of the auxiliary power supply circuit is connected to the third end of the rectifier circuit, and the second end of the auxiliary power supply circuit is connected to the control module.

9. The high power factor colored light control circuit according to claim 8, characterized in that: Also includes: Anti-interference circuit; The first end of the anti-interference circuit is connected to the first end of the external power supply, and the second end of the anti-interference circuit is connected to the first end of the rectifier circuit.

10. A colored light device, characterized in that: include: A high power factor colored light control circuit and power supply as described in any one of claims 1-9; the first end of the high power factor colored light control circuit is connected to the first end of the power supply, and the second end of the high power factor colored light control circuit is connected to the second end of the power supply.

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