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:
May. 05, 1998
Filed:
Mar. 26, 1996
Applicant:
Inventors:
Hok-Tung Wong, San Jose, CA (US);
Charles L Vinn, Milpitas, CA (US);
Assignee:
Raytheon Company, , DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323282 ; 323285 ; 323283 ;
Abstract
A switching voltage regulator whose switching frequency decreases with reduced load currents is disclosed. The switching voltage regulator includes a current-controlled oscillator that varies the frequency of switching by changing the off-time of the switch and maintaining a constant on-time. The lower frequency as a result of the constant on-time switching reduces switching loss and power consumption at lower load currents. The constant on-time architecture of the present invention significantly improves the overall efficiency of the switching voltage regulator, while reducing component count and die size.