The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2022
Filed:
Mar. 31, 2020
Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, CN;
Silergy Semiconductor Technology (Hangzhou) LTD, Hangzhou, CN;
Abstract
An apparatus including: a switching converter having a main switch configured to provide power to a transformer, an auxiliary switch configured to provide a release path for leakage inductance energy of the transformer, and a clamp capacitor coupled in series with the auxiliary switch; and a control circuit configured to control the main switch to be off and the auxiliary switch to operate to discharge the clamp capacitor when in an over-voltage protection mode. A method of controlling the switching converter can include: controlling the main switch to be off; and controlling the auxiliary switch to operate to discharge the clamp capacitor when in an over-voltage protection mode.