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:
Feb. 11, 1997
Filed:
Feb. 22, 1994
Arthur J Edwards, Hoffman Estates, IL (US);
Motorola Inc., Schaumberg, IL (US);
Abstract
A dual output temperature compensated voltage reference includes a voltage reference circuit (201) having a first output (203) for providing a first signal (204) dependent on temperature, and a second output (207) for providing a second signal (208) dependent on the first signal (204). A temperature dependence of the first signal (204) has a slope opposite a temperature dependence of the second signal (208). A cooperative device (209), such as a resistive divider (309, 311), combines the first and second signals (204, 208) and provides a third signal (212) dependent on the first and second signals (204, 208). Preferably, this apparatus is applied in a charge regulator including fault detection (109). The charge regulator (109) generates a charge voltage (110) dependent on the first signal (204) and a fault detection function is dependent on the third signal (212).