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

Claim 4:
5. The drive circuit of the digital dimming LED light according to claim 3, wherein the boosting constant voltage unit further comprises a voltage feedback circuit, and the voltage feedback circuit comprises a resistor R7 and a resistor R8 for voltage division, one end of the resistor R7 is connected to the voltage-boosting type DC/DC converter topology circuit, the other end of the resistor R7 is connected to the resistor R8, and the other end of the resistor R8 is grounded, and wherein a first connection point is provided between the resistor R7 and the resistor R8, and the first connection point is connected to a feedback port FB of the voltage-boosting chip U2.