Patent ID: 11876436
Assignee: HALO MICROELECTRONICS INTERNATIONAL
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 16:
17. A system comprising:
a power converter comprising an inductor and a power switch connected in series between an input port and ground; and
a controller configured to generate a gate drive signal fed into a gate of the power switch, wherein the controller comprises:
a driver configured to drive the power switch;
a first clamping device configured to detect a first current including information of when an inductor current reduces to zero, and when a drain voltage of the power switch enters a valley of a resonant ringing; and
a second clamping device configured to directly detect a second current including information of when the drain voltage of the power switch exits the valley of the resonant ringing.