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. 29, 1985
Filed:
Mar. 30, 1983
Fujitsu Limited, Kawasaki, JP;
Abstract
A boosting circuit includes a plurality of variable capacitors with controllable capacitance values in accordance with the voltage level at first and second terminals of each of the variable capicitors A plurality of first buffer circuits is located at the first terminal side, each acting to increase the voltage level at the corresponding first terminal to a first level. A single second buffer circuit located at the second terminal side cooperating commonly with the variable capacitors, to increase the voltage level at each second terminal. The first level is thus boosted to a second level which results in an output of the circuit concerned. Each variable capacitor is fabricated by a MOS transistor capacitor.