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:
Feb. 18, 2025
Filed:
Dec. 20, 2022
Power Integrations, Inc., San Jose, CA (US);
Akshay Nayaknur, Sunnyvale, CA (US);
POWER INTEGRATIONS, INC., San Jose, CA (US);
Abstract
A controller for use in a power converter comprising a control circuit coupled to generate a secondary drive signal to control a secondary switch. An enable circuit coupled to generate an enable signal to enable or disable the control circuit from generating the secondary drive signal. The enable circuit further comprising a winding signal detection circuit coupled to receive a discontinuous conduction mode (DCM) signal representative of a determination that the secondary switch has stopped conducting and a winding signal representative of a voltage of an output winding. The winding signal detection circuit is coupled to determine if the winding signal is less than a threshold at least an N number of times. The enable circuit is coupled to disable the control circuit from generation of the secondary drive signal to turn ON the secondary switch in response to the winding signal detection circuit.