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. 15, 2005
Filed:
Mar. 21, 2003
Yasutaka Takabayashi, Yamanashi, JP;
Yasutaka Takabayashi, Yamanashi, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A semiconductor device having a regulator circuit includes a transistor having a source and a drain connected to a power supply and an output terminal; first and second voltage divider resistance elements connected in series between ground and the transistor output terminal; a differential operational amplifier that differentially amplifies a reference voltage and a voltage divided by the voltage divider resistance elements, and that supplies the amplified voltages to a gate of the transistor, to control an output voltage of the transistor; and a phase compensation capacitor including an interlayer film between electrode layers and overlaid two-dimensionally on the voltage divider resistance elements. The electrode layer close to the semiconductor substrate is connected to the output terminal of the transistor, and a parasitic capacitance between the output terminal of the transistor and the voltage divider resistance elements compensates a phase lag of a transistor output signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile