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:
Aug. 08, 2006
Filed:
Dec. 02, 2004
Richard Brosh, Manassas, VA (US);
Scott Willis, Fairfax Station, VA (US);
Kenneth Knowles, Manassas, VA (US);
Matthew Gregory, Manassas, VA (US);
Richard Brosh, Manassas, VA (US);
Scott Willis, Fairfax Station, VA (US);
Kenneth Knowles, Manassas, VA (US);
Matthew Gregory, Manassas, VA (US);
BAE SYSTEMS Information and Electronic Systems Integration Inc., Nashua, NH (US);
Abstract
A digital adaptive power supply interface has two feedback loops, each including a VCO, to automatically compensate for temperature and semiconductor process variations. A first loop compares the system input phase/frequency to a reference voltage that has been converted to a first digital frequency signal by a VCO in the first loop, and generates an analog difference signal. The second loop compares this analog difference with the power supply output voltage, and a VCO in this second loop converts result of this comparison to a second digital frequency signal. The digital frequency signals of the two loops are fed respectively to two registers and the content of the registers are subtracted, one from the other, to generate a digital error signal adjust the power supply output voltage to the input frequency.