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. 18, 1999
Filed:
May. 06, 1997
Applicant:
Inventor:
Stephen W Bryson, Cupertino, CA (US);
Assignee:
Fairchild Semiconductor Corporation, So. Portland, ME (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323283 ; 323351 ;
Abstract
A programmable DC-DC converter controller with a high speed synchronous controller and a 5-bit programmable DAC provides an operating voltage to an external device (such as a microprocessor) in response to a 5 bit code programmed in the external device. The 5-bit programmable DAC outputs a signal which provides voltages to the external device in increments of e.g. 50 or 100 millivolts, in respectively two different voltage ranges.