CN209949493U - Circuit suitable for high efficiency is realized mixing of colors temperature and is transferred color - Google Patents
Circuit suitable for high efficiency is realized mixing of colors temperature and is transferred color Download PDFInfo
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- CN209949493U CN209949493U CN201920726548.2U CN201920726548U CN209949493U CN 209949493 U CN209949493 U CN 209949493U CN 201920726548 U CN201920726548 U CN 201920726548U CN 209949493 U CN209949493 U CN 209949493U
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Abstract
The utility model discloses a circuit suitable for high efficiency is realized mixing of colors temperature and is transferred color belongs to LED circuit technical field, including rectifier circuit, step-down circuit, dimmer circuit and the light source circuit that connects gradually, wherein the step-down circuit still is connected with module supply circuit, and module supply circuit and microprocessor circuit are connected, and microprocessor circuit and dimmer circuit are connected. The utility model discloses a LED load of output, step-down chip U1 automatic switch-over constant current mode and constant voltage mode, work when drive high colour temperature, low colour temperature light source at the constant current mode, reach high efficiency drive LED, when drive RGB light source, work is at the constant voltage mode, realizes full-color scene control.
Description
Technical Field
The utility model belongs to the technical field of the LED circuit, concretely relates to circuit suitable for high efficiency realizes mixing of colors temperature and transfers color.
Background
The general characteristics of the lighting industry in recent years are the transition from traditional lighting to LED lighting, and through the rapid development of decades, LED lighting products are gradually replacing traditional lighting products. Due to the rapid improvement of the cost performance of the LED illuminating product, the permeability of the LED illuminating product is also increased year by year. If you want the feeling of a warm room, you can color your bulb to a low color temperature; if you want to be cool and quiet down, you can tone the bulb color to a high color temperature; if you want to create a party, you can match the color of the bulb with the color of the party topic. The lamp with the functions of color temperature adjustment and color control can add different contents to personalized families.
The market requirements of the full-color lamps at the present stage are as follows: the low color temperature light source and the high color temperature light source are used for brightness illumination, the light flux of the product is required, the living needs need to be met, and the two color temperature light sources can meet the requirement that the range of the illumination product from the low color temperature to the high color temperature is adjustable. The red, green and blue light sources are suitable for scene illumination, and color adjustability is achieved. The control circuit in the prior art is divided into two schemes:
in the first scheme, as shown in fig. 3, the power supply outputs a constant voltage, and the low color temperature white light and the high color temperature white light are respectively dimmed by using a DC-DC circuit. The red, green and blue adopt resistance voltage division, and the MOS tube realizes dimming. Its advantages are high uniformity of white light and high efficiency; however, the scheme has the advantages of more devices, higher space requirement and high cost.
In the second scheme, as shown in fig. 4, the power supply outputs a constant voltage, the low color temperature light source, the high color temperature light source, the red light source, the green light source and the blue light source all adopt resistance voltage division, and the MOS transistor realizes dimming. Its advantages are low cost and low requirement for space; however, the efficiency is low, the brightness is inconsistent when a batch of lamps are simultaneously lighted by adopting resistance voltage division, and the consistency of products is poor. .
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circuit suitable for high efficiency realizes mixing of colors temperature and transfers color to solve the problem that proposes among the above-mentioned background art. The utility model provides a pair of circuit suitable for high efficiency realizes mixing of colors temperature and transfers color has high efficiency, low price and the simple characteristics of circuit.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a circuit suitable for high efficiency realizes mixing colours temperature and transferring colours, includes rectifier circuit, step-down circuit, dimmer circuit and the light source circuit that connects gradually, and wherein the step-down circuit still is connected with module power supply circuit, and module power supply circuit and microprocessor circuit are connected, and microprocessor circuit and dimmer circuit are connected.
The utility model discloses in furtherly, the step-down circuit includes chip U1, resistance RS1, resistance RS2, resistance RS3 and resistance RS4, wherein resistance RS 1's one end is connected with rectifier circuit and chip U1's DRAIN end respectively, resistance RS 1's the other end and resistance RS2, resistance RS4, chip U1's VCC end and resistance RS3 are connected, resistance RS 2's the other end and resistance RS3 and chip U1's FB end are connected, the one end that resistance RS3 and resistance RS1 are connected still is connected with chip U1's GND end.
The utility model discloses in furtherly, the light source circuit includes five different light sources, and wherein, the one end of five different light sources is connected with step-down circuit's output respectively, and the other end is connected with dimmer circuit.
The utility model discloses in furtherly, five differences the light source is red light source, green light source, blue light source, low color temperature light source and high color temperature light source in proper order, and wherein, red light source, green light source and blue light source are connected with resistance RS5, resistance RS6 and resistance RS7 respectively with the one end of step-down circuit connection.
The utility model discloses in furtherly, microprocessor circuit includes communication module, communication module includes the antenna, the antenna is two-sided PCB board and carries the antenna.
The utility model discloses in furtherly, dimming circuit includes MOS pipe Q1, MOS pipe Q2, MOS pipe Q3, MOS pipe Q4 and MOS pipe Q5, wherein MOS pipe Q1, MOS pipe Q2, MOS pipe Q3, MOS pipe Q4 and MOS pipe Q5 respectively with red light source, green light source, blue light source, low color temperature light source and high color temperature light source correspond and be connected, still respectively with chip U3 PWM-R, PWM-G, PWM-B, PWM-WH and PWM-WL end are connected.
Further in the present invention, the chip U1 is a constant voltage constant current control chip.
The utility model discloses in furtherly, MOS pipe Q1, MOS pipe Q2, MOS pipe Q3, MOS pipe Q4 and MOS pipe Q5 are N channel MOS pipe.
The utility model discloses in furtherly, the realization method that is applicable to the circuit that the high efficiency realized mixing of colors temperature and transfer colors, including following step:
after being rectified by a rectifying circuit, the current enters a voltage reduction circuit;
secondly, the microprocessor circuit and the light source circuit are powered by a chip U1 in the voltage reduction circuit;
and when the high/low color temperature light source works, the load is small, the module power supply circuit is in a constant current mode, and when the RGB light source works, the load is increased, and the module power supply circuit is in a constant voltage mode.
The utility model discloses in furtherly, the realization method that is applicable to the high efficiency and realizes mixing of colors temperature and mixing of colors circuit, the step-down circuit includes chip U1, resistance RS1, resistance RS2, resistance RS3 and resistance RS4, wherein resistance RS 1's one end is connected with rectifier circuit and chip U1's DRAIN end respectively, resistance RS 1's the other end and resistance RS2, resistance RS4, chip U1's VCC end and resistance RS3 are connected, resistance RS 2's the other end and resistance RS3 and chip U1's FB end are connected, resistance RS3 and the one end that resistance RS1 is connected still are connected with chip U1's GND end; the light source circuit comprises five different light sources, wherein one ends of the five different light sources are respectively connected with the output end of the voltage reduction circuit, and the other ends of the five different light sources are connected with the dimming circuit; the five different light sources are a red light source, a green light source, a blue light source, a low color temperature light source and a high color temperature light source in sequence, wherein one ends of the red light source, the green light source and the blue light source, which are connected with the voltage reduction circuit, are respectively connected with a resistor RS5, a resistor RS6 and a resistor RS 7; the microprocessor circuit comprises a communication module, the communication module comprises an antenna, and the antenna is a double-sided PCB (printed circuit board) on-board antenna; the dimming circuit comprises an MOS tube Q1, an MOS tube Q2, an MOS tube Q3, an MOS tube Q4 and an MOS tube Q5, wherein the MOS tube Q1, the MOS tube Q2, the MOS tube Q3, the MOS tube Q4 and the MOS tube Q5 are correspondingly connected with a red light source, a green light source, a blue light source, a low color temperature light source and a high color temperature light source respectively, and are also connected with PWM-R, PWM-G, PWM-B, PWM-WH and PWM-WL ends of a chip U3 respectively; the chip U1 is a constant-voltage constant-current control chip; MOS transistor Q1, MOS transistor Q2, MOS transistor Q3, MOS transistor Q4 and MOS transistor Q5 are all N-channel MOS transistors.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a LED load of output, step-down chip U1 automatic switch-over constant current mode and constant voltage mode, work in the constant current mode when driving high colour temperature, low colour temperature light source, reach high efficiency drive LED, when driving RGB light source, work in the constant voltage mode, realize full-color scene control;
2. the utility model has the advantages of high efficiency, low price and simple circuit;
3. the light source circuit in the utility model comprises five light sources of red, green, blue, low color temperature and high color temperature, wherein the resistor RS5, the resistor RS6 and the resistor RS7 are current-limiting resistors and have the function of voltage division;
4. the MOS tube Q1, the MOS tube Q2, the MOS tube Q3, the MOS tube Q4 and the MOS tube Q5 in the utility model are N-channel MOS tubes, and the Vgs is conducted when being larger than a certain value, thus the utility model has the characteristic of low price;
5. the utility model provides a control signal of output is the PWM signal, and the frequency is 4K, has no stroboscopic characteristics.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention;
fig. 2 is a schematic diagram of the circuit structure of the present invention;
FIG. 3 is a schematic diagram of a conventional drive scheme 1 on the market;
FIG. 4 is a schematic diagram of a conventional drive scheme 2 on the market;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-2, the present invention provides the following technical solutions: the utility model provides a circuit suitable for high efficiency realizes mixing colours temperature and transferring colours, includes rectifier circuit, step-down circuit, dimmer circuit and the light source circuit that connects gradually, and wherein the step-down circuit still is connected with module power supply circuit, and module power supply circuit and microprocessor circuit are connected, and microprocessor circuit and dimmer circuit are connected.
Further, the voltage reduction circuit comprises a chip U1, a resistor RS1, a resistor RS2, a resistor RS3 and a resistor RS4, wherein one end of the resistor RS1 is connected with the DRAIN end of the rectifying circuit and the chip U1 respectively, the other end of the resistor RS1 is connected with the resistor RS2, the resistor RS4, the VCC end of the chip U1 and the resistor RS3, the other end of the resistor RS2 is connected with the resistor RS3 and the FB end of the chip U1, and one end of the resistor RS3 connected with the resistor RS1 is also connected with the GND end of the chip U1; the chip U1 is a constant-voltage constant-current control chip; the resistor RS4 controls the output current; the resistor RS2 and the resistor RS3 control the output voltage.
Furthermore, the light source circuit comprises five different light sources, wherein one ends of the five different light sources are respectively connected with the output end of the voltage reduction circuit, and the other ends of the five different light sources are connected with the dimming circuit.
Further, the five different light sources are a red light source, a green light source, a blue light source, a low color temperature light source and a high color temperature light source in sequence, wherein one ends of the red light source, the green light source and the blue light source, which are connected with the voltage reduction circuit, are respectively connected with a resistor RS5, a resistor RS6 and a resistor RS7, and the resistor RS5, the resistor RS6 and the resistor RS7 are current limiting resistors and have a voltage division function.
Further, the microprocessor circuit includes a communication module including an antenna, the antenna being a dual-sided PCB on-board antenna.
Further, the dimming circuit comprises a MOS tube Q1, a MOS tube Q2, a MOS tube Q3, a MOS tube Q4 and a MOS tube Q5, wherein the MOS tube Q1, the MOS tube Q2, the MOS tube Q3, the MOS tube Q4 and the MOS tube Q5 are correspondingly connected with the red light source, the green light source, the blue light source, the low color temperature light source and the high color temperature light source respectively, and are also connected with PWM-R, PWM-G, PWM-B, PWM-WH and PWM-WL ends of the chip U3 respectively.
Further, the chip U1 is a constant voltage and constant current control chip.
Furthermore, the MOS transistor Q1, the MOS transistor Q2, the MOS transistor Q3, the MOS transistor Q4 and the MOS transistor Q5 are all N-channel MOS transistors, and are conducted when Vgs is larger than a certain value, so that the MOS transistor has the characteristic of low price.
Further, be applicable to the realization method that high efficiency realized mixing of colors temperature transfer color's circuit, including following step:
after being rectified by a rectifying circuit, the current enters a voltage reduction circuit;
secondly, the microprocessor circuit and the light source circuit are powered by a chip U1 in the voltage reduction circuit;
and when the high/low color temperature light source works, the load is small, the module power supply circuit is in a constant current mode, and when the RGB light source works, the load is increased, and the module power supply circuit is in a constant voltage mode.
The specific structure of the rectifying circuit in the embodiment is disclosed in an undervoltage release disclosed in the chinese patent application No. 201410683218.1; the concrete structure of the microprocessor circuit is disclosed in the solar air conditioning system of which the inverter circuit is controlled by the microprocessor circuit, which is disclosed in Chinese patent application No. 201520706248.
Specifically in this embodiment, it is assumed that the client requirements are: in order to meet a certain luminous flux requirement, the number of each high/low color temperature light source is 2, and a single working current is 100 MA; full-color control of RGB is realized, 2 RGB light sources respectively work, and a single working current 30MA works.
The chip U1 adopts BP2513DP of a crystal abundance source, and is expressed according to the current: the I is 300/Rcs, the resistance RS4 is 1.2K, the output current is 250mA, wherein 50mA is provided for the microprocessor circuit, and 200mA ensures the working current of the high/low color temperature light source; setting the output voltage to 7.05V according to the voltage expressions V ═ (RL + RH) × 3/RL, RS3 ═ 2K, RS2 ═ 2.7K; according to the LED specification, red Vf is 2.2V; green Vf is 3V; blue Vf is 3V; the high color temperature 6500K light source Vf is 3V; the low color temperature 2700K light source Vf is 3V; the RGB light source operates at 50Ma, 52 Ω RS5, 20 Ω RS6, 20 Ω RS 7; when the LED light source works at a high/low color temperature light source, the load is small, the power supply chip U2BP2513DP works in a constant current mode, the current is output to 250, and about 200MA actually works for the LED. When RGB is operated, the load becomes large and the voltage rises, and when the voltage rises to this value, the voltage is kept constant since the set value is 7.05V. Through the test of a power analyzer, when the scheme works at 6500K color temperature, the efficiency is 87%, and the scheme has the advantages of high efficiency, low price and simple circuit.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a circuit suitable for high efficiency realizes mixing colours temperature and transfers colour which characterized in that: the dimming circuit comprises a rectifying circuit, a voltage reduction circuit, a dimming circuit and a light source circuit which are sequentially connected, wherein the voltage reduction circuit is also connected with a module power supply circuit, the module power supply circuit is connected with a microprocessor circuit, and the microprocessor circuit is connected with the dimming circuit.
2. The circuit of claim 1, wherein the circuit is adapted to perform color temperature adjustment with high efficiency, and further comprising: the voltage reduction circuit comprises a chip U1, a resistor RS1, a resistor RS2, a resistor RS3 and a resistor RS4, wherein one end of the resistor RS1 is connected with a DRAIN end of the rectifying circuit and the chip U1 respectively, the other end of the resistor RS1 is connected with a VCC end of the resistor RS2, a resistor RS4 and a resistor RS3 of the chip U1, the other end of the resistor RS2 is connected with a FB end of the resistor RS3 and a FB end of the chip U1, and one end of the resistor RS3 connected with the resistor RS1 is also connected with a GND end of the chip U1.
3. A circuit adapted to efficiently achieve color toning and temperature toning according to claim 2, wherein: the light source circuit comprises five different light sources, wherein one ends of the five different light sources are respectively connected with the output end of the voltage reduction circuit, and the other ends of the five different light sources are connected with the dimming circuit.
4. A circuit adapted to efficiently achieve color toning and temperature toning according to claim 3, wherein: the five different light sources are a red light source, a green light source, a blue light source, a low color temperature light source and a high color temperature light source in sequence, wherein one ends of the red light source, the green light source and the blue light source, which are connected with the voltage reduction circuit, are respectively connected with a resistor RS5, a resistor RS6 and a resistor RS 7.
5. The circuit of claim 4, wherein the circuit is adapted to perform color temperature adjustment with high efficiency, and further comprising: the microprocessor circuit comprises a communication module, the communication module comprises an antenna, and the antenna is a double-sided PCB (printed circuit board) on-board antenna.
6. The circuit of claim 5, wherein the circuit is adapted to perform color temperature adjustment with high efficiency, and further comprising: the dimming circuit comprises an MOS tube Q1, an MOS tube Q2, an MOS tube Q3, an MOS tube Q4 and an MOS tube Q5, wherein the MOS tube Q1, the MOS tube Q2, the MOS tube Q3, the MOS tube Q4 and the MOS tube Q5 are correspondingly connected with a red light source, a green light source, a blue light source, a low color temperature light source and a high color temperature light source respectively, and are also connected with PWM-R, PWM-G, PWM-B, PWM-WH and PWM-WL ends of a chip U3 respectively.
7. The circuit of claim 6, wherein the circuit is adapted to perform color temperature adjustment with high efficiency, and further comprising: the chip U1 is a constant voltage and constant current control chip.
8. The circuit of claim 7, wherein the circuit is adapted to perform color temperature adjustment with high efficiency, and further comprising: the MOS tube Q1, the MOS tube Q2, the MOS tube Q3, the MOS tube Q4 and the MOS tube Q5 are all N-channel MOS tubes.
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| CN201920726548.2U CN209949493U (en) | 2019-05-21 | 2019-05-21 | Circuit suitable for high efficiency is realized mixing of colors temperature and is transferred color |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035586A (en) * | 2019-05-21 | 2019-07-19 | 横店集团得邦照明股份有限公司 | It is a kind of to realize the color circuit and its implementation of color-temperature regulating toning suitable for high efficiency |
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- 2019-05-21 CN CN201920726548.2U patent/CN209949493U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035586A (en) * | 2019-05-21 | 2019-07-19 | 横店集团得邦照明股份有限公司 | It is a kind of to realize the color circuit and its implementation of color-temperature regulating toning suitable for high efficiency |
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