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:
Oct. 05, 2021
Filed:
May. 26, 2020
Cypress Semiconductor Corporation, San Jose, CA (US);
Partha Mondal, Paschim Medinipur, IN;
Hemant P. Vispute, Bangalore, IN;
Arun Khamesra, Bangalore, IN;
Hariom Rai, Bangalore, IN;
Pulkit Shah, Bangalore, IN;
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
An AC-DC converter with synchronous rectifier (SR) architecture and method for operating the same are described. Generally, a secondary side integrated circuit (IC) controller of the AC-DC converter includes a SR-SNS pin, a VBUS_IN pin, a first voltage-to-current converter, a sample-and-hold (S/H) circuit, a second voltage-to-current converter, and a signal generation circuit. The first voltage-to-current converter is coupled to remove a component of the output bus voltage sensed on the VBUS_IN pin from the voltage sensed on the SR-SNS pin. The S/H circuit is coupled to sample the voltage sensed on the SR-SNS pin and to provide a sampled voltage. The second voltage-to-current converter is coupled to convert the sampled voltage to a feed-forward current. The signal generation circuit is coupled to receive the feed-forward current and to generate feed-forward signals used to control operation of a primary side of the AC-DC converter.