Patent ID: 11876453
Assignee: RICHTEK TECHNOLOGY CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. The driver circuit of claim 10, wherein the dead time control circuit further includes: a clamper MOSFET coupled to the sensor MOSFET in series, the clamper MOSFET clamping the dead time signal; and an amplifier, which has an inverse terminal and a non-inverse terminal, wherein the inverse terminal is coupled to a source of the sensor MOSFET, and the non-inverse terminal is coupled to a source of the high side MOSFET; wherein an output terminal of the amplifier controls the clamper MOSFET, to feedback control the source of the sensor MOSFET and the source of the high side MOSFET to a same voltage, so that a plurality of operating points of the sensor MOSFET are consistent with the operating points of the high-side MOSFET.