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:
Jan. 02, 1990
Filed:
Apr. 05, 1989
Applicant:
Inventor:
Alan E Brown, Magnolia, TX (US);
Assignee:
Compaq Computer Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 21 ; 363 56 ; 363 97 ;
Abstract
A discontinuous, free-running flyback power supply with precise, predictable switching control is provided. An open collector comparator provides a digital signal to the control switching transistor for precise control of the switching action of the power switching transistor. This digital signal also provides a minimum hold-off time for the power switching transistor for power-up and low load conditions.