Patent ID: 11870362
Assignee: WUXI CHIPOWN MICROELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 14:
15. The synchronous rectification control circuit according to claim 14, wherein the detection trigger sub-circuit comprises a second Schmitt trigger, a seventh inverter and a third counter,
wherein the second Schmitt trigger has an input terminal provided with the sampling voltage, and an output terminal coupled to an input terminal of the seventh inverter;
the seventh inverter has an output terminal coupled to an input terminal of the third counter; and
the third counter has a control terminal coupled to the output terminal of the pre-pulse signal generation circuit, a first output terminal which is the first output terminal of the detection trigger sub-circuit, and a second output terminal which is the second output terminal of the detection trigger sub-circuit.