Title:
APPARATUS AND METHOD FOR PROTECTING INDUCTIVE CURRENT
Document Type and Number:
WIPO Patent Application WO/2020/134792
Kind Code:
A1
Abstract:
Provided are an apparatus and method for protecting an inductive current. The apparatus comprises: a plurality of first conditioning circuits configured to convert a plurality of winding induced currents of a totem bridgeless power factor correction converter into a plurality of first voltage signals; a single-chip microcomputer configured to respectively compare the received plurality of first voltage signals with a first pre-set threshold, and transmit pulse width modulation (PWM) drive after a comparison result to an AND gate circuit; a second conditioning circuit configured to convert a total induced current of the totem bridgeless power factor correction converter into a second voltage signal; a comparator configured to compare the received second voltage signal with a second pre-set threshold, and transmit a comparison result to the AND gate circuit; and the AND gate circuit configured to perform an AND operation on the comparison results received from the single-chip microcomputer and a majority comparator, and control an inductive current according to an AND operation result.
Inventors:
DAI XINJIAN (CN)
TU DARUI (CN)
HE SHAOJIA (CN)
XU XIANFENG (CN)
YANG YUNDONG (CN)
TU DARUI (CN)
HE SHAOJIA (CN)
XU XIANFENG (CN)
YANG YUNDONG (CN)
Application Number:
PCT/CN2019/120715
Publication Date:
July 02, 2020
Filing Date:
November 25, 2019
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H02M1/32
Foreign References:
| CN106655101A | 2017-05-10 | |||
| CN105226932A | 2016-01-06 | |||
| CN104009667A | 2014-08-27 | |||
| CN202167837U | 2012-03-14 | |||
| CN104518656A | 2015-04-15 | |||
| US20150155776A1 | 2015-06-04 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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