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. 07, 2003
Filed:
May. 11, 2001
Applicant:
Inventors:
Atsushi Sakurai, Chiba, JP;
Koichi Yamasaki, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/14 ;
U.S. Cl.
CPC ...
H02J 7/14 ;
Abstract
A charge/discharge control circuit has a circuit structure having another return detection voltage different from a detection voltage for detecting an over-current when returning from an over-current state to a normal state. With the structure, the charge/discharge control circuit surely returns from the over-current state to the normal state even if a load of 1 M&OHgr; or less in a low impedance is opened.