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:
Aug. 22, 2017
Filed:
Oct. 21, 2014
Power Integrations, Inc., San Jose, CA (US);
Balu Balakrishnan, Saratoga, CA (US);
David Michael Hugh Matthews, Los Gatos, CA (US);
Vikram Balakrishnan, Mountain View, CA (US);
Roland Sylvere Saint-Pierre, San Jose, CA (US);
Zhao-Jun Wang, San Jose, CA (US);
Giao Minh Pham, Milpitas, CA (US);
Qing McIntosh, San Jose, CA (US);
Power Integrations, Inc., San Jose, CA (US);
Abstract
A control circuit for use in an isolated power converter includes an output-side first controller having a switch control signal generator and an extremum locator. The switch control signal generator communicates a control signal to a second controller on the input side of the power converter via an isolated interface to initiate a transition of a switch from an OFF state to an ON state. The extremum locator enables the switch control signal generator to communicate the control signal in response to an oscillating voltage signal at an output terminal of the energy transfer element. The extremum locator enables the switch control signal generator such that the transition of the switch from the OFF state to the ON state occurs substantially at a time that the oscillating voltage signal reaches an extremum.