CN214014577U - Multi-gear color temperature adjusting power supply - Google Patents
Multi-gear color temperature adjusting power supply Download PDFInfo
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- CN214014577U CN214014577U CN202023126122.5U CN202023126122U CN214014577U CN 214014577 U CN214014577 U CN 214014577U CN 202023126122 U CN202023126122 U CN 202023126122U CN 214014577 U CN214014577 U CN 214014577U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model provides a many grades of colour temperature adjust power, include: LED power supply input is anodal, LED power supply input negative pole, step-down circuit, colour temperature control chip, dial switch, first MOS pipe and second MOS pipe, step-down circuit with LED power supply input is anodal, LED power supply input negative pole is connected, step-down circuit's output with colour temperature control chip's power pin is connected, colour temperature control chip's control input end with connect through a colour temperature adjusting resistor respectively between a plurality of inputs of dial switch, the anodal positive pole with first LED circuit, second LED circuit of LED power supply input is connected, the negative pole of first LED circuit passes through first MOS pipe with LED power supply input negative pole is connected. The utility model discloses can provide the many grades of regulation to the colour temperature, satisfy the demand of the multiple colour temperature of people, stably can make, the price is low.
Description
Technical Field
The utility model relates to a LED power technical field, in particular to multi-gear colour temperature regulation power.
Background
At present, the largest market share is single-color temperature lamps, and the control is simple. However, the intelligent lamp with stepless color temperature change is expensive, complex in control and susceptible to the influence of the external environment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a many grades of colour temperature adjust power to solve at least one above-mentioned technical problem.
In order to solve the above problem, as an aspect of the present invention, there is provided a multi-level color temperature adjusting power supply, including: the LED color temperature control circuit comprises an LED power supply input anode, an LED power supply input cathode, a voltage reduction circuit, a color temperature control chip, a dial switch, a first MOS tube and a second MOS tube, wherein the voltage reduction circuit is connected with the LED power supply input anode and the LED power supply input cathode, the output end of the voltage reduction circuit is connected with a power pin of the color temperature control chip, the control input end of the color temperature control chip is connected with a plurality of input ends of the dial switch through a color temperature adjusting resistor, the LED power supply input anode is connected with a first LED circuit and the anode of a second LED circuit, the cathode of the first LED circuit is connected with the LED power supply input cathode through the first MOS tube, the cathode of the second LED circuit is connected with the LED power supply input cathode through the second MOS tube, and the first PWM output end of the color temperature control chip is connected with the control end of the first MOS tube, the second PWM output end of the color temperature control chip is connected with the control end of the second MOS tube, the sum of the duty ratios of PWM signals output by the first PWM output end and the second PWM output end is 100%, and one end of the first LED circuit connected with the first MOS tube is electrically connected with one end of the second LED circuit connected with the second MOS tube.
Preferably, the step-down circuit comprises a first resistor and a first voltage regulator tube which are connected in series.
Preferably, one end of the first resistor connected with the first voltage regulator tube is connected with the control input end of the color temperature control chip through a second resistor.
Preferably, the first MOS transistor is connected to the cathode of the LED power supply input through a first clamping diode, and the second MOS transistor is connected to the cathode of the LED power supply input through a second clamping diode.
Preferably, the model of the color temperature control chip is BJ8M 611A.
Preferably, the first LED circuit is 3500K colour temperature lamp pearl, and the second LED circuit is 6000K colour temperature lamp pearl.
Since the technical scheme is used, the utility model discloses can provide the many grades of regulation to the colour temperature, satisfy the demand of the multiple colour temperature of people, stably can make, the price is low.
Drawings
Fig. 1 schematically shows a circuit schematic of the invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As an aspect of the utility model, a multi-gear color temperature adjusting power supply is provided, include: the LED color temperature control circuit comprises an LED power supply input anode LED +, an LED power supply input cathode LED +, a voltage reduction circuit, a color temperature control chip U5, a dial switch K2, a first MOS tube Q4 and a second MOS tube Q5, wherein the voltage reduction circuit is connected with the LED power supply input anode LED +, the LED power supply input cathode LED-, the output end of the voltage reduction circuit is connected with a power supply pin VCC of the color temperature control chip U5, a control input end DMAX of the color temperature control chip U5 is connected with a plurality of input ends of the dial switch K2 through a color temperature adjusting resistor R32, R44 and R45 respectively, the LED power supply input anode LED + is connected with the anodes of a first LED circuit LED1 and a second LED circuit LED2, the cathode of the first LED circuit LED1 is connected with the LED power supply input cathode LED-through the first MOS tube Q4, and the cathode of the second LED circuit LED2 is connected with the LED power supply input cathode LED-through the second MOS tube Q5, a first PWM output end PWM1 of the color temperature control chip U5 is connected to a control end of the first MOS transistor Q4, a second PWM output end PWM2 of the color temperature control chip U5 is connected to a control end of the second MOS transistor Q5, a sum of duty ratios of PWM signals output by the first PWM output end and the second PWM output end is 100% (for example, when a first PWM output end PWM1 is 30% duty ratio and a second PWM output end PWM2 is 70%, when a first PWM output end PWM1 is 40% duty ratio and a second PWM output end PWM2 is 60%, when a first PWM output end PWM1 is 50% duty ratio and a second PWM output end PWM2 is 50%, and a sum of two pins is 100%), and an end of the first LED circuit LED1 connected to the first MOS transistor Q4 is electrically connected to an end of the second LED circuit LED2 connected to the second MOS transistor Q5.
Preferably, the color temperature control chip U5 is model BJ8M 611A. First LED circuit LED1 is 3500K colour temperature lamp pearl, and second LED circuit LED2 is 6000K colour temperature lamp pearl.
Preferably, the voltage reduction circuit comprises a first resistor R51 and a first voltage regulator ZD4 which are connected in series.
Preferably, one end of the first resistor R51 connected to the first voltage regulator ZD4 is connected to the control input end DMAX of the color temperature control chip U5 through a second resistor R42.
Preferably, the first MOS transistor Q4 is connected to the LED power input cathode LED-via a first clamping diode D62, and the second MOS transistor Q5 is connected to the LED power input cathode LED-via a second clamping diode D63.
The utility model provides a behind anodal first LED circuit LED1 and the second LED circuit LED2 of common positive pole of the anodal (LED power supply input anodal LED +) process of constant current, by first MOS pipe Q4 and second MOS pipe Q5 to constant current source negative pole (LED power supply input negative pole LED-), accessible toggle switch K2 stirs the potential of 5 feet (control input end DMAX) that the switch-on changes color temperature control chip U5 respectively, thereby adjust 3 of color temperature control chip U5, 4 feet (first PWM output PWM1, second PWM output PWM2) output two way complementary PWM duty cycle signals go to control first MOS pipe Q4, the proportion that switches on of second MOS pipe Q5, thereby realize multiple colour temperature change. Like this, the accessible resistance is pulled the switch and is realized multiple colour temperature and change, realizes a tractor serves several colour temperatures, reduces product colour temperature kind.
Since the technical scheme is used, the utility model discloses can provide the many grades of regulation to the colour temperature, satisfy the demand of the multiple colour temperature of people, stably can make, the price is low.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A multi-gear color temperature adjusting power supply is characterized by comprising: LED power supply input anode (LED +), LED power supply input cathode (LED-), a voltage reduction circuit, a color temperature control chip (U5), a dial switch (K2), a first MOS tube (Q4) and a second MOS tube (Q5), wherein the voltage reduction circuit is connected with the LED power supply input anode (LED +), the LED power supply input cathode (LED-), an output end of the voltage reduction circuit is connected with a power pin of the color temperature control chip (U5), a control input end of the color temperature control chip (U5) is connected with a plurality of input ends of the dial switch (K2) through a color temperature adjusting resistor, the LED power supply input anode (LED +) is connected with anodes of the first LED circuit (LED1) and the second LED circuit (LED2), a cathode of the first LED circuit (LED1) is connected with the LED power supply input cathode (LED-) through the first MOS tube (Q4), the cathode of the second LED circuit (LED2) is connected to the LED power supply input cathode (LED-) through the second MOS transistor (Q5), the first PWM output end of the color temperature control chip (U5) is connected to the control end of the first MOS transistor (Q4), the second PWM output end of the color temperature control chip (U5) is connected to the control end of the second MOS transistor (Q5), the sum of the duty ratios of the PWM signals output from the first PWM output end and the second PWM output end is 100%, and the end of the first LED circuit (LED1) connected to the first MOS transistor (Q4) is electrically connected to the end of the second LED circuit (LED2) connected to the second MOS transistor (Q5).
2. The multi-step color temperature adjusting power supply according to claim 1, wherein the voltage reduction circuit comprises a first resistor (R51) and a first voltage regulator tube (ZD4) connected in series.
3. The power supply of claim 2, wherein one end of the first resistor (R51) connected to the first voltage regulator tube (ZD4) is connected to the control input end of the color temperature control chip (U5) via a second resistor (R42).
4. The multi-range color temperature adjusting power supply according to claim 1, wherein the first MOS transistor (Q4) is connected to the LED power input cathode (LED-) through a first clamping diode (D62), and the second MOS transistor (Q5) is connected to the LED power input cathode (LED-) through a second clamping diode (D63).
5. The multi-range color temperature adjusting power supply of claim 1, wherein the color temperature control chip (U5) is model BJ8M 611A.
6. The multi-gear color temperature adjusting power supply of claim 1, wherein the first LED circuit (LED1) is a 3500K color temperature lamp bead, and the second LED circuit (LED2) is a 6000K color temperature lamp bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023126122.5U CN214014577U (en) | 2020-12-22 | 2020-12-22 | Multi-gear color temperature adjusting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023126122.5U CN214014577U (en) | 2020-12-22 | 2020-12-22 | Multi-gear color temperature adjusting power supply |
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| Publication Number | Publication Date |
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| CN214014577U true CN214014577U (en) | 2021-08-20 |
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| CN202023126122.5U Active CN214014577U (en) | 2020-12-22 | 2020-12-22 | Multi-gear color temperature adjusting power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116600437A (en) * | 2023-07-19 | 2023-08-15 | 深圳市美尚照明有限公司 | LED lamp strip and method for quickly adjusting color temperature and color tolerance |
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2020
- 2020-12-22 CN CN202023126122.5U patent/CN214014577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116600437A (en) * | 2023-07-19 | 2023-08-15 | 深圳市美尚照明有限公司 | LED lamp strip and method for quickly adjusting color temperature and color tolerance |
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