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:
Jan. 04, 1994
Filed:
Sep. 30, 1992
Wataru Sakamoto, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A circuit of a structure in which one end of a serial connection circuit of two capacitors is grounded, and the potential of another end is switched in a constant cycle is disclosed as a voltage generating circuit applicable to a half Vcc generating circuit, a substrate bias circuit, or the like. Electrical connection between a connection point between the capacitors and a predetermined load and electrical connection between the connection point and ground are controlled so that the potential of the connection point attains to be a constant potential in accordance with the ratio between the capacitance of the two capacitors in response to switching of the potential of the 'another end' to a predetermined potential. As a result, a half Vcc generating circuit with reduced power consumption and layout area and a substrate bias circuit capable of biasing a semiconductor substrate to an arbitrary potential are realized.