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:
Jan. 17, 2017

Filed:

Jun. 22, 2015
Applicant:

Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, ZheJiang Province, CN;

Inventors:

Kailang Hang, Hangzhou, CN;

Jiubing Luo, Hangzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/157 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 3/156 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 2001/0025 (2013.01); H02M 2003/1566 (2013.01);
Abstract

A control circuit configured to control a switch-type converter, can include: (i) a state detect circuit configured to generate an error amplifying signal according to a feedback voltage and a reference voltage, to compensate the error amplifying signal by a ramp compensation signal having a predetermined frequency, and to generate a state signal by comparing the compensated error amplifying signal against a voltage ripple signal, where the voltage ripple signal changes along with an inductor current of the switch-type converter; and (ii) a control signal generator configured to generate control signals to control the switch-type converter according to the state signal.


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