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:
Nov. 15, 1988
Filed:
Jan. 21, 1987
Applicant:
Inventor:
John E Eng, Buena Park, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307577 ; 307246 ; 3072 / ; 307570 ; 307584 ; 361 93 ; 363 89 ;
Abstract
A leakage regulator for use with switching power supplies which include a field effect transistor (FET) is disclosed. The leakage regulator comprises a bias circuit coupled in a feedback arrangement with the FET to provide a self-generated bias voltage. The bias circuit includes a current transformer coupled to receive a drain-source leakage current. A bias voltage is generated from the transformed leakage current and this bias voltage is applied to the FET gate to help decrease the leakage current.