NARROW PULSE SUPPRESSION METHOD AND APPARATUS, AND BRIDGE SWITCH CIRCUIT

Title:

NARROW PULSE SUPPRESSION METHOD AND APPARATUS, AND BRIDGE SWITCH CIRCUIT

Document Type and Number:

WIPO Patent Application WO/2022/247289

Kind Code:

A1

Abstract:

A narrow pulse suppression method and apparatus, and a bridge switch circuit. The method is applied to a bridge switch circuit comprising at least one bridge arm. Each bridge arm comprises an upper switch tube and a lower switch tube, which are connected in series. The method comprises: when it is detected that an original modulation wave comparison value of the current period is within a preset narrow pulse interval of an upper switch tube, determining an upper tube adjustment interval to which the original modulation wave comparison value currently belongs; and according to a correspondence between upper tube adjustment intervals and adjusted modulation wave comparison values, adjusting the original modulation wave comparison value to an adjusted modulation wave comparison value corresponding to the upper tube adjustment interval to which the original modulation wave comparison value currently belongs.

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Inventors:

WEI QING (CN)
HONG SHENPING (CN)
SHA HONGLEI (CN)
YU TIANYE (CN)
PENG AIGUO (CN)
ZHANG XIAOHUA (CN)
KANG SHAOFENG (CN)
XIA LINGSI (CN)

Application Number:

PCT/CN2021/144058

Publication Date:

December 01, 2022

Filing Date:

December 31, 2021

Export Citation:

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Assignee:

TIANJIN EMAGING TECH CO LTD (CN)

International Classes:

H02M1/38; H02M7/483

Foreign References:

CN113037072A	2021-06-25
CN104158420A	2014-11-19
CN110323927A	2019-10-11
US4989128A	1991-01-29
CN107241029A	2017-10-10
CN107508478A	2017-12-22
CN202110594686A	2021-05-28

Other References: