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:
May. 28, 2019
Filed:
Aug. 11, 2017
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;
Takuya Ogishima, Shizuoka, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A switching power supply comprises a transformer; a switching element; a power supply control section which outputs a first gate voltage of a first pulse width consecutively for plural times when the switching element is driven in a burst mode in which the switching element is intermittently driven; a drive time control section which, based on the first gate voltage input consecutively for plural times when the switching element is driven, outputs a second gate voltage to the switching element consecutively for plural times and gradually increases a pulse width of the second gate voltage to a first pulse width from a second pulse width narrower than the first pulse width; and a switching section to which a switches an input destination of the first gate voltage output by the power supply control section from the switching element to the drive time control section in the burst mode.