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. 19, 2000
Filed:
Jan. 22, 1999
Applicant:
Inventors:
Yoshifumi Yoshida, Chiba, JP;
Fumiyasu Utsunomiya, Chiba, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ; G05F / ; G05F / ;
U.S. Cl.
CPC ...
323266 ; 323284 ;
Abstract
An electronic apparatus which controls the driving of a load circuit in accordance with a detected feed power voltage. The feed power voltage can be accurately detected even when it is low. In order to achieve this, the apparatus in one embodiment includes a power feed unit, a boosting circuit for increasing a voltage of the supply power, a voltage detecting circuit for detecting the voltage of the supply power as increased by the boosting circuit and outputting a voltage detection signal, and the load circuit which is driven based on the supply power. A voltage detection circuit detects the supply voltage only when it is not being used to drive the load circuit.