SINGLE STAGE SWITCHING POWER CONVERTER WITH IMPROVED PRIMARY ONLY FEEDBACK

Title:

SINGLE STAGE SWITCHING POWER CONVERTER WITH IMPROVED PRIMARY ONLY FEEDBACK

Document Type and Number:

WIPO Patent Application WO/2017/004815

Kind Code:

A1

Abstract:

A switching power converter is provided that extrapolates from a reference voltage during dead periods of a rectified input voltage as determined from a comparison of an Isense voltage to a current threshold. The resulting extrapolation is quite advantageous because the switching power converter may control its power switch while the sense voltage is non-trustable using the extrapolated reference voltage. Since this extrapolated reference voltage substantially equals the output voltage while the sense voltage is non-trustable, the output power regulation is considerably improved as compared to conventional techniques.

Inventors:

YE ZHIQIU (CN)
WANG NAILONG (CN)
CHEN YIMIN (US)
GAO XIAOLIN (US)

Application Number:

PCT/CN2015/083608

Publication Date:

January 12, 2017

Filing Date:

July 08, 2015

Export Citation:

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Assignee:

DIALOG SEMICONDUCTOR INC (US)
DIALOG SEMICONDUCTOR UK LTD (GB)

International Classes:

H02M1/42

Foreign References:

CN1111771A	1995-11-15
CN102332814A	2012-01-25
CN104578799A	2015-04-29
CN1706089A	2005-12-07
CN102958246A	2013-03-06

Attorney, Agent or Firm:

CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)

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