Driving circuit based on flyback conversion power supply
A technology of drive circuit and power supply voltage, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve problems such as increasing process complexity, achieve low surface temperature, ensure stability, and be easy to transplant
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[0038] The voltage divider circuit includes a fourth resistor, a fifth resistor, and a fourth capacitor; the first end of the fourth resistor is connected to the reference voltage source, and the second end of the fourth resistor is connected to the fifth resistor. The first end; the first end of the fifth resistor is connected to the second voltage signal input end of the error amplifier circuit, and the second end of the fifth resistor is grounded; the fourth capacitor is connected in parallel with the fifth resistor .
[0039] The LED drive circuit further includes an RC filter circuit; the signal acquisition end of the LED group circuit is connected to the first voltage signal input end of the error amplifier circuit through the RC filter circuit.
[0040] The RC filter circuit includes a sixth resistor and a fifth capacitor; the first end of the sixth resistor is connected to the signal collection end of the LED group circuit, and the second end of the sixth resistor is con...
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