Invention Grant
- Patent Title: Control circuit for a flyback converter, related integrated circuit, electronic flyback converter and method
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Application No.: US17935542Application Date: 2022-09-26
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Publication No.: US11881784B2Publication Date: 2024-01-23
- Inventor: Fabio Cacciotto
- Applicant: STMICROELECTRONICS S.R.L.
- Applicant Address: IT Agrate Brianza
- Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee Address: IT Agrate Brianza
- Agency: SEED INTELLECTUAL PROPERTY LAW GROUP LLP
- Priority: IT 2020000002911 2020.02.13
- Main IPC: H02M3/335
- IPC: H02M3/335 ; H02M1/08 ; H02M1/00

Abstract:
A control circuit for a driving an electronic switch associated with a switching node of a flyback converter includes a comparison circuit configured to generate a switch-off signal by comparing a current measurement signal with a current measurement threshold signal. A valley detection circuit is configured to generate a trigger in a trigger signal when a valley signal indicates a valley in a voltage at the switching node of the flyback converter, and a blanking circuit is configured to generate a switch-on signal by combining the trigger signal with a timer signal provide by a timer circuit. The timer signal indicates whether a blanking time-interval has elapsed.
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Information query
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