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:
Jun. 18, 1996
Filed:
Jul. 27, 1994
Applicant:
Inventor:
Kouji Yokosawa, Kanagawa, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
327143 ; 327198 ;
Abstract
A P-channel field effect transistor (FET) T5 is connected between a constant current circuit constituted by first and second P-channel FETs T1 and T2 and first and second N-channel FETs T6 and T7, and a resistor, and a voltage detecting circuit. A gate of the FET T5 is connected to an output of the voltage detecting circuit, a drain of which is connected to the gates of the FETs T6 and T7, and a source of which is connected to a power supply. The FET T5 operates so as to quickly start the constant current circuit when powered.