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:
Dec. 03, 2002
Filed:
Apr. 17, 2001
Applicant:
Inventors:
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 ;
U.S. Cl.
CPC ...
H02M 3/335 ;
Abstract
A DC to DC converter converts a DC input voltage into a plurality of DC output voltages and includes a circuit stage having switching elements for converting a DC input voltage into a first AC signal (V ). A first resonant circuit converts a first AC signal into a second AC signal which is used for forming a first DC output voltage. A second resonant circuit converts the first AC signal into a third AC signal which is used for forming a second DC output voltage. A control circuit sets various frequency ranges for the first AC signal to set various supply power modes, such as for normal operation and standby mode.