Patent ID: 11881784
Assignee: STMICROELECTRONICS S.R.L.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 5:
6. A device, comprising:
a flyback converter that includes:
a transformer;
a first switch coupled to the transformer;
a control circuit configured to generate a drive signal to a first logic level for a switch-on duration for closing the first switch and a second logic level for a switch-off duration for opening the first switch;
a valley detection circuit configured to generate a trigger in response to a valley in a voltage of the transformer;
a comparison circuit configured to generate a switch-off signal in response to a current measurement signal of the transformer during the switch-on duration and a current measurement threshold signal;
a timer circuit configured to generate a timer signal indicative of a blanking time-interval has elapsed; and
a blanking circuit configured to generate a switch-on signal in response to the trigger and the timer signal.