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. 13, 1996
Filed:
Jun. 09, 1993
Toshio Yamada, Osaka, JP;
Akinori Shibayama, Osaka, JP;
Shunichi Iwanari, Osaka, JP;
Atsushi Fujiwara, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a circuit, a resistance element is interposed between a positive power supply line (external power supply voltage level VCC) and an output node. To feedback an output potential, there is disposed an N-type MOSFET of which gate is connected to the output node and of which source is connected to the earth line (earth potential VSS) in the circuit. Another three N-type MOSFETs which are so connected in series to one another as to form a MOS diode, are interposed between the drain of the feedback N-type MOSFET and the output node. The earth line also serves as a reference potential line for the potential of the output node. Variations of the threshold voltages of the MOSFETs due to temperature variations are compensated. This restrains the output potential from varying.