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:
Jul. 28, 2015

Filed:

Feb. 04, 2014
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Yuusuke Murata, Kariya, JP;

Takeyasu Komatsu, Chiryu, JP;

Tsuneo Maebara, Nagoya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 3/00 (2006.01); H03K 17/14 (2006.01); H03K 17/567 (2006.01);
U.S. Cl.
CPC ...
H03K 17/14 (2013.01); H03K 17/567 (2013.01);
Abstract

In the invention, a circuit control device controlling a semiconductor switching element having a control terminal and driven by voltage inputted to the control terminal, has an input voltage detector, a desired voltage setting portion and a control input generation portion. The input voltage detector detects inputted voltage to the switching element. The desired voltage setting portion sets a desired value of the voltage to be inputted to the switching element. The control input generation portion is connected to the control terminal of the switching element, the control input generation portion generating control input to the switching element such that the value to be detected by the input voltage detector closes to the set desired value. The desired voltage setting portion sets the desired value of the voltage on the basis of predetermined characteristics information and operating parameters of the switching element. The operating parameters include temperature of the switching element, Vce, Ice etc.


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