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:
Jan. 24, 2012
Filed:
Mar. 18, 2009
Hisashi Takasu, Hazu-gun, JP;
Tomonori Kimura, Oobu, JP;
Hisashi Takasu, Hazu-gun, JP;
Tomonori Kimura, Oobu, JP;
Denso Corporation, Kariya, JP;
Abstract
The control apparatus is for controlling a power conversion apparatus with a chopper circuit including at least one voltage-controlled type switching element provided with a drive circuit, and a coil to generate back electromotive force. The control apparatus includes a function of outputting an operation command signal to the drive circuit to control an output voltage of the power conversion apparatus, a second function of setting, on the basis a current flowing through the switching element, a switching speed of the switching element to such a value that noise exceeding a withstand voltage between a conduction control terminal and an output terminal of the switching element can be prevented from occurring when the switching element is switched, and a third function of adjusting the drive circuit to drive the switching element such that the switching element is switched at the switching speed set by the second function.