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:
Dec. 25, 2001
Filed:
Nov. 13, 1998
Applicant:
Inventors:
Mako Kobayashi, Hyogo, JP;
Fukashi Morishita, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/306 ;
U.S. Cl.
CPC ...
G01R 2/306 ;
Abstract
The voltage converting circuit,includes a standby VDC, an active VDC which operates when the semiconductor integrated circuit device is activated and has current drivability larger than that of standby VDC, and a drivability control circuit. Drivability control circuit generates a control signal in accordance with operational frequency of the semiconductor integrated circuit device. Current drivability of the active the VDC is controlled in accordance with the operational frequency by the control signal.