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.
Patent No.:
Date of Patent:
Oct. 06, 2015
Filed:
May. 10, 2012
Applicant:
Kotaro Higashi, Tokyo, JP;
Inventor:
Kotaro Higashi, Tokyo, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/46 (2006.01); H02M 7/487 (2007.01); H02M 7/515 (2007.01);
U.S. Cl.
CPC ...
H02M 7/46 (2013.01); H02M 7/487 (2013.01); H02M 7/5152 (2013.01);
Abstract
When switching control signals of self-excited semiconductor devices from OFF-control to ON-control, a control circuit controls the self-excited semiconductor device to be ON after a lapse of a turn-ON time from when a control voltage is applied to the self-excited semiconductor device. When switching the control signals of the self-excited semiconductor devices from ON-control to OFF-control, the control circuit controls the control signal of the self-excited semiconductor device to be OFF after a lapse of a turn-OFF time from when the control voltage is applied to the self-excited semiconductor device.