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:
Apr. 16, 2002
Filed:
Jun. 05, 2000
Randhir S. Malik, Wake, NC (US);
Eino A. Lindfors, Durham, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A power supply system is disclosed. The circuit comprises a main power supply portion, the main power supply portion including a transformer, and an auxiliary power supply portion wherein the auxiliary power supply portion is coupled to the main power supply portion via the transformer. Through the use of the power supply system in accordance with the present invention, the auxiliary output voltage is generated by the main power supply. Therefore, the present invention provides the auxiliary output voltage supply by using the same pulse width modulator and switching devices as used by the main power supply. The use of a power supply system in accordance with the present invention thereby eliminates the need for the components required to maintain the auxiliary output voltage.