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:
Oct. 20, 1998
Filed:
May. 19, 1997
Evert Seevinck, Eersel, NL;
Monuko Du Plessis, Pretoria, ZA;
U.S. Philips Corporation, New York, NY (US);
Abstract
A CMOS bias circuit capable of operating down to a supply voltage equal to the sum of the threshold voltage and the saturation voltage. It generates a threshold referenced bias voltage which is independent of the supply voltage. This bias voltage is equal to the gate source voltage of a transistor which supplies a current equal to the gate-source voltage of another transistor divided by the resistance of a feedback resistor. Via the feedback resistor, changes in the supply voltage cause counteracting changes in the gate-source voltages of the transistors, resulting in a bias voltage which is substantially constant with changing supply voltage.