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.

Date of Patent:
Mar. 13, 2018

Filed:

Dec. 02, 2015
Applicant:

Seiko Instruments Inc., Chiba-shi, Chiba, JP;

Inventor:

Masakazu Sugiura, Chiba, JO;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/00 (2006.01); H03K 5/24 (2006.01); G01R 19/00 (2006.01);
U.S. Cl.
CPC ...
H03K 5/24 (2013.01); G01R 19/0084 (2013.01); H03K 5/2472 (2013.01);
Abstract

To provide a voltage detection circuit which avoids unintentional on/off-control of an output transistor immediately after starting a power supply. A voltage detection circuit is configured to be equipped with a comparator which compares a detected voltage and a reference voltage, and an inverter which drives an output transistor, based on an output of the comparator and to supply the operating current of the inverter by a current source.


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