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. 29, 2013
Filed:
Jan. 23, 2009
Hiromichi Ohashi, Ibaraki, JP;
Yukihiko Sato, Ibaraki, JP;
Kyungmin Sung, Ibaraki, JP;
Masamu Kamaga, Ibaraki, JP;
Moe Imaizumi, Chiba, JP;
Hiromichi Ohashi, Ibaraki, JP;
Yukihiko Sato, Ibaraki, JP;
Kyungmin Sung, Ibaraki, JP;
Masamu Kamaga, Ibaraki, JP;
Moe Imaizumi, Chiba, JP;
Abstract
To realize power supply to each gate drive circuit without using an individual dedicated power supply for each gate drive circuit. A power conversion apparatus includes an individual drive unit that does not require a dedicated power supply, and includes gate drivers connected to switches and interface circuits and a power converter gate drive configured with a common power supply for supplying power to the gate drive unit. Power is supplied from main circuits or a number of common power supplies fewer than that of the number of the switches through one or more power supply terminals included in the interface circuit. Also, the signal can be transmitted by isolation from a signal source to the gate drivers.