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.

Date of Patent:
Feb. 07, 2017

Filed:

Jan. 23, 2013
Applicant:

Daikin Industries, Ltd., Osaka-shi, Osaka, JP;

Inventors:

Sumio Kagimura, Sakai, JP;

Toshiaki Satou, Kusatsu, JP;

Shinichi Ishizeki, Sakai, JP;

Assignee:

DAIKIN INDUSTRIES, LTD., Osaka-Shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 5/45 (2006.01); H02M 1/34 (2007.01); H02M 5/458 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/34 (2013.01); H02M 5/4585 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/346 (2013.01); Y02B 70/1491 (2013.01);
Abstract

A converter receives input of an AC voltage, converts the AC voltage into a DC voltage, and applies the DC voltage between a first power line on a positive electrode side and a second power line on a negative electrode side. A snubber circuit has a capacitor provided between the first and the second power lines, and a diode connected in series with the capacitor between the first and the second power lines, and including an anode on a side close to the first power line on the positive electrode side in a series path with the capacitor. An inverter converts the DC voltage into an AC voltage, and applies the AC voltage to an inductive load. An inverter-side current detection unit detects a current that flows through the first power line on the positive electrode side or the second power line on the negative electrode side between the inverter and the snubber circuit.


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