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:
Sep. 10, 2013

Filed:

Sep. 19, 2011
Applicants:

Masakazu Sugiura, Chiba, JP;

Atsushi Igarashi, Chiba, JP;

Inventors:

Masakazu Sugiura, Chiba, JP;

Atsushi Igarashi, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/78 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a temperature detection device capable of attaining low current consumption at no expense of detection speed at around a temperature to be detected. The temperature detection device includes a control circuit for outputting a control signal for controlling ON/OFF of such internal circuits as a reference voltage circuit and a comparator. In the control circuit, in order to increase the detection speed at around the temperature to be detected, an oscillation frequency of an oscillation circuit has positive temperature characteristics. Further, the control circuit includes a waveform shaping circuit so as to optimize the waveform of the control signal for controlling ON of the internal circuits, to thereby attain low current consumption.


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