Title:
INTEGRATED FLUX LINKAGE CLOSED-LOOP CONTROL SYSTEM OF MONOSTABLE PERMANENT MAGNET CONTACTOR
Document Type and Number:
WIPO Patent Application WO/2023/142464
Kind Code:
A1
Abstract:
The present invention relates to an integrated flux linkage closed-loop control system of a monostable permanent magnet contactor, comprising an integrated driving circuit and a flux linkage closed-loop control system. The integrated driving circuit comprises a rectifier bridge, a filter capacitor, integrated chips U1 and U2, a driving permanent magnet contactor coil, and multiple capacitors and resistors; the rectifier bridge and filter capacitor rectify an alternating current input voltage into a smooth direct current; the chips U1 and U2 constitute a full bridge circuit; the flux linkage closed-loop control system uses constant flux linkage closed-loop control in the starting process of the permanent magnet contactor, such that the operating power is minimized, and the flux is automatically weakened, so as to save the energy and inhibit the contact bounce; and constant zero flux linkage control is used in the breaking process, such that an electromagnetic chain completely counteracts a permanent magnet chain all the time, so as to improve the opening speed, thereby further improving the opening and closing performance of a permanent magnet switch. The system is beneficial to simplifying a hardware control circuit of the monostable permanent magnet contactor and improving the operation reliability and the opening and closing performance of the monostable permanent magnet contactor.
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Inventors:
TANG LONGFEI (CN)
ZHENG XINGXIN (CN)
ZHENG XINGXIN (CN)
Application Number:
PCT/CN2022/114248
Publication Date:
August 03, 2023
Filing Date:
August 23, 2022
Export Citation:
Assignee:
UNIV FUZHOU (CN)
International Classes:
H01H47/22
Foreign References:
| CN114499263A | 2022-05-13 | |||
| CN101866777A | 2010-10-20 | |||
| CN111580436A | 2020-08-25 | |||
| CN103390527A | 2013-11-13 | |||
| CN102315698A | 2012-01-11 | |||
| CN205355812U | 2016-06-29 |
Other References:
BRIDGESWITCH FAMILY: "High-Voltage, Self-Powered, Half-bridge Motor Driver with Integrated Device Protection and System Monitoring", PRODUCT DATA SHEET, POWER INTEGRATIONS, 1 January 2022 (2022-01-01), pages 1 - 32, XP093081478
Attorney, Agent or Firm:
FUZHOU YUANCHUANG PATENT AND TRADEMARK AGENT LTD. (CN)
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