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:
Nov. 04, 2003
Filed:
Dec. 21, 2001
Applicant:
Inventor:
Kenichi Nakajima, Saitama, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/08 ;
U.S. Cl.
CPC ...
H03K 5/08 ;
Abstract
The invention includes: a capacitor for generating ramp wave; a constant current source for supplying constant current to the capacitor for generating ramp wave; voltage fixing means for charging the capacitor for generating ramp wave and for fixing a terminal of the capacitor by force to a designated reference voltage Vref; and a counter circuit enabling to output control signal having pulse width corresponding to desired waiting time, and that terminal voltage of capacitor for generating ramp wave is fixed to reference voltage while waiting time set by the counting circuit