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:
Oct. 14, 2008

Filed:

Feb. 06, 2007
Applicants:

Yoshinori Arashima, Gamagori, JP;

Shouichi Okuda, Nukata-gun, JP;

Inventors:

Yoshinori Arashima, Gamagori, JP;

Shouichi Okuda, Nukata-gun, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor device includes: a semiconductor substrate having first and second pads; an output transistor; and a current control circuit having first and second resistors, a control signal generation circuit, first and second switching circuits. The first or second resistor is disposed between the first or second pad and the output transistor. The control signal generation circuit generates a control signal to the output transistor based on a voltage of both ends of the first or second resistor. The first or second switching circuit is disposed between both ends of the first or second resistor and the control signal generation circuit. The first or second switching circuit is controlled to be in an on-state.


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