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:
Apr. 14, 2015
Filed:
Sep. 10, 2012
Noriyuki Kitamura, Kanagawa-ken, JP;
Yuji Takahashi, Kanagawa-ken, JP;
Hitoshi Kawano, Kanagawa-ken, JP;
Masatoshi Kumagai, Kanagawa-ken, JP;
Yosuke Saito, Kanagawa-ken, JP;
Noriyuki Kitamura, Kanagawa-ken, JP;
Yuji Takahashi, Kanagawa-ken, JP;
Hitoshi Kawano, Kanagawa-ken, JP;
Masatoshi Kumagai, Kanagawa-ken, JP;
Yosuke Saito, Kanagawa-ken, JP;
Toshiba Lighting & Technology Corporation, Yokosuka-shi, Kanagawa-ken, JP;
Abstract
A switching power supply apparatus according to an embodiment includes a switching element, an inductor, a drive circuit, a mounting substrate, and an insulating substrate. The switching element is connected between a power supply and a lighting load. The inductor is connected in series to the switching element. The drive circuit controls the switching element, converts a voltage supplied from the power supply, and is mounted on the mounting substrate. The insulating substrate is thermally connected to the switching element, and has thermal conductivity higher than the mounting substrate.