Patent ID: 11937349
Assignee: SHENZHEN HONTECH-WINS ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A drive circuit for a digital dimming LED light, comprising a power module and a dimming module corresponding to LED lights, wherein the dimming module comprises a demodulation unit, a boosting constant voltage unit and a constant current chopper unit, and the power module is used to convert a utility power into DC power and output the DC power to the demodulation unit, and is further used to receive an external dimming signal and modulate and convert the external dimming signal into a digital signal; wherein the demodulation unit is connected to the power module for receiving and demodulating the digital signal, the constant current chopper unit is connected to the demodulation unit, and both the boosting constant voltage unit and the constant current chopper unit are connected to the LED lights, so that the voltage and current of the LED lights are constant, and the brightness of the LED lights is consistent by adjusting the brightness of the LED lights based on a demodulated signal, and
Wherein the demodulation unit comprises a demodulation chip U1, a voltage divider circuit and a first filter circuit, and the voltage divider circuit is connected to the power module, receiving the digital signal for voltage division, and the signal divided is filtered by the first filter circuit, demodulated by the demodulation chip U1, and transmitted to the constant current chopper unit.