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:
Dec. 20, 2016

Filed:

Jul. 14, 2015
Applicants:

Dong-sheng LI, Taipei, TW;

Chia-wei Lin, Taipei, TW;

Kuang-feng Lin, Taipei, TW;

Ching-pao Hsiao, Taipei, TW;

Gen-jie Hsiao, Taipei, TW;

Chen-sheng Lee, Taipei, TW;

Inventors:

Dong-Sheng Li, Taipei, TW;

Kuang-Feng Lin, Taipei, TW;

Chia-Wei Lin, Taipei, TW;

Assignee:

Other;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); H02M 2001/0022 (2013.01);
Abstract

A switching power supply is provided and connected between external voltage source and a device having high peak current characteristic, the switching power supply comprises boost converter, control circuit and energy storing element. An input end of boost converter is connected to external voltage source, and output end of boost converter is electrically connected to the device. A control circuit is connected to boost converter in parallel. A first predetermined voltage value and a predetermined current value is set in control circuit. When output current of external voltage source is larger than predetermined current value or output voltage of external voltage source is lower than first predetermined voltage value, output voltage of boost converter is reduced to be lower than the voltage of energy storing element by control circuit.


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