Patent ID: 11955890
Assignee: RICHTEK TECHNOLOGY CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The switching converter circuit of claim 1, wherein the high side sensor circuit includes:
a high side sensor MOSFET having a conductivity type which is complementary to the high side MOSFET; and
a high side clamper MOSFET having a conductivity type which is complementary to the high side MOSFET, wherein the high side clamper MOSFET and the high side sensor MOSFET are coupled in series to a bootstrap voltage of the high side driver;
wherein a gate and a source of the high side MOSFET are correspondingly coupled to a gate of the high side sensor MOSFET and a gate of the high side clamper MOSFET respectively, such that the high side clamper MOSFET generates the low side enable signal at a drain of the high side clamper MOSFET according to the gate-source voltage of the high side MOSFET.