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. 17, 2015

Filed:

Aug. 28, 2013
Applicant:

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

Inventors:

Tomotaka Suzuki, Nagoya, JP;

Ryotaro Miura, Kariya, JP;

Takeyasu Komatsu, Chiryu, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01); H03K 17/042 (2006.01); H02P 6/14 (2006.01); H02M 1/08 (2006.01); H02M 7/5387 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H03K 17/04206 (2013.01); H02P 6/14 (2013.01); H02M 1/08 (2013.01); H02M 7/5387 (2013.01); H02M 2001/0029 (2013.01);
Abstract

In a driver, a discharging module discharges, at a discharging rate, the on-off control terminal of a switching element in response to a drive signal being shifted from an on state to an off state. A changing module determines whether a condition including a level of a sense signal being higher than a threshold level during the on state of the drive signal is met, and changes the discharging rate of the on-off control terminal in response to the drive signal being shifted from the off state to the on state upon determination that the condition is met. A loosening module loosens the condition after a lapse of a period since the shift of the drive signal from the off state to the on state in comparison to the condition immediately after the shift of the drive signal from the off state to the on state.


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