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:
Sep. 09, 2014

Filed:

Dec. 21, 2011
Applicants:

Chuang-wei Tseng, New Taipei, TW;

Kai-fu Chen, New Taipei, TW;

Chia-yun Lee, New Taipei, TW;

Inventors:

Chuang-Wei Tseng, New Taipei, TW;

Kai-Fu Chen, New Taipei, TW;

Chia-Yun Lee, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H01H 47/20 (2006.01); H01H 83/00 (2006.01); H02H 3/00 (2006.01); H02M 1/12 (2006.01); H02M 1/00 (2006.01); H03H 7/01 (2006.01);
U.S. Cl.
CPC ...
H02M 1/12 (2013.01); H02M 2001/0012 (2013.01); H03H 7/0115 (2013.01);
Abstract

A resonance frequency adjusting circuit in electronic communication with a power supply and a load connected to the power supply includes a first LC filter, a capacitor, a switch, and a frequency detecting and control module. The first LC filter circuit is electrically connected between the power supply and the load. The switch is electrically connected between the capacitor and ground. The frequency detecting and control module detects a current transient frequency of the load, compares the current transient frequency with a first resonance frequency of the first LC filter circuit, and controls the switch to turn on/off according to the comparison.


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