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:
Jun. 07, 2011
Filed:
Apr. 21, 2004
Hitoshi Kidokoro, Tokyo, JP;
Masato Matsubara, Tokyo, JP;
Akihiko Iwata, Tokyo, JP;
Hiroyasu Iwabuki, Tokyo, JP;
Akihiro Suzuki, Tokyo, JP;
Hitoshi Kidokoro, Tokyo, JP;
Masato Matsubara, Tokyo, JP;
Akihiko Iwata, Tokyo, JP;
Hiroyasu Iwabuki, Tokyo, JP;
Akihiro Suzuki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
The present invention provides a power device including a converter part () for converting an AC voltage to a DC voltage; an inverter part () for converting the DC voltage outputted from the converter part () to the AC voltage; and a transformer () having an inductance forming a series resonance circuit together with an electrostatic capacity of a load () to boost the AC voltage outputted from the inverter part (). In the power device, an inductance () is connected to the output part of the inverter part () in parallel with the transformer (). Thus, in a discharge partprovided in the load (), since when a discharge is not generated, a recovery current is not supplied to a circulating current diode in the inverter part (), or the quantity of the recovery current is reduced, the heat generation of the circulating current diode can be suppressed without increasing the number of elements of the circulating current diode.