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:
Sep. 24, 2013
Filed:
Nov. 30, 2010
Donald R. Disney, Cupertino, CA (US);
Michael Hsing, Saratoga, CA (US);
James Nguyen, San Jose, CA (US);
James Moyer, San Jose, CA (US);
Donald R. Disney, Cupertino, CA (US);
Michael Hsing, Saratoga, CA (US);
James Nguyen, San Jose, CA (US);
James Moyer, San Jose, CA (US);
Monolithic Power Systems, Inc., San Jose, CA (US);
Abstract
A discharge circuit for an EMI filter capacitor includes normally-ON transistors. The normally-ON transistors may be controlled to limit current through them when an AC source is coupled across the discharge circuit. When the AC source is disconnected from the discharge circuit, the normally-ON transistors turn ON to allow current flow through them. The current flow allows the EMI filter capacitor to be discharged by a discharge resistor.