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:
Feb. 24, 2015
Filed:
May. 22, 2012
Applicants:
Jaeyoo Yoo, Seoul, KR;
Boram Lee, Seoul, KR;
Inventors:
Jaeyoo Yoo, Seoul, KR;
Boram Lee, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 33/00 (2006.01); F04B 35/04 (2006.01); F04B 49/06 (2006.01);
U.S. Cl.
CPC ...
F04B 35/04 (2013.01); F04B 49/06 (2013.01); F04B 2203/0201 (2013.01);
Abstract
An apparatus for controlling a compressor is provided. When grounding the apparatus for controlling a compressor, an analog circuit ground and a digital circuit ground may be insulated from each other to protect the apparatus. A ground of an analog circuit driven by commercial alternating current (AC) power, and a ground of a digital circuit driven by a voltage which has been converted from commercial AC power, may also be insulated from each other by a simple circuit device to protect a controller inside the digital circuit.