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:
May. 19, 2015

Filed:

Sep. 10, 2013
Applicant:

Inno-tech Co., Ltd., Taipei City, TW;

Inventors:

Ching-Yuan Lin, Taipei City, TW;

Shu-Chia Lin, Taipei City, TW;

Chih Feng Lin, Taipei City, TW;

Assignee:

INNO-TECH CO., LTD., Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2006.01); H02M 1/08 (2006.01); H02M 1/38 (2007.01); H03K 7/08 (2006.01);
U.S. Cl.
CPC ...
H03K 7/08 (2013.01); H02M 3/33507 (2013.01); H02M 1/08 (2013.01); H02M 1/38 (2013.01);
Abstract

A power conversion system with adjustable frequency includes an electric transformer, a pulse width modulation driving controller, a switching transistor, a first and second voltage division resistors connected in series, an output diode and an output capacitor. The electric transformer receives the input power and generates the sensing current and induced current. The sensing current flows through the first and second voltage division resistors to generate the feedback signal. The induced current flows through the output diode and output capacitor to generate the output voltage to supply the load. The pulse width modulation driving controller determine whether the loading state of the load based on the feedback signal, and change the switching frequency according to the loading state and the input power, thereby increasing the whole efficiency of the power conversion system and achieving the aim of dynamically adjusting the optimal frequency.


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