Title:
ELECTROMAGNET CURRENT MEASUREMENT CIRCUIT FOR MAGNETIC-LEVITATION TRAIN, AND MAGNETIC-LEVITATION TRAIN
Document Type and Number:
WIPO Patent Application WO/2022/262746
Kind Code:
A1
Abstract:
An electromagnet current measurement circuit for a magnetic-levitation train, and a magnetic-levitation train. The circuit comprises: a forward circuit (10), a reverse circuit (20) and a comparison circuit (30), wherein the forward circuit (10) is used for performing positive-value taking processing on an input first analog signal, and outputting a first signal; the reverse circuit (20) is used for performing negative-value taking processing on an input second analog signal, and outputting a second signal, the first analog signal being an electromagnet input current and the second analog signal being an electromagnet output current, or the first analog signal being an electromagnet output current and the second analog signal being an electromagnet input current; and the comparison circuit (30) is used for determining, when the sum of the first signal and the second signal is within a preset signal threshold value range, that the electromagnet input current and the electromagnet output current are normal.
Inventors:
JIANG SHOULIANG (CN)
MIAO XIN (CN)
HAN JIYU (CN)
CHEN JIAN (CN)
GU SHAOPENG (CN)
MIAO XIN (CN)
HAN JIYU (CN)
CHEN JIAN (CN)
GU SHAOPENG (CN)
Application Number:
PCT/CN2022/098823
Publication Date:
December 22, 2022
Filing Date:
June 15, 2022
Export Citation:
Assignee:
CRRC QINGDAO SIFANG CO LTD (CN)
International Classes:
B60L13/04; G01R19/00
Foreign References:
| CN113406378A | 2021-09-17 | |||
| CN112848914A | 2021-05-28 | |||
| CN107612440A | 2018-01-19 | |||
| US5586043A | 1996-12-17 |
Other References:
"Electronics Technology Fundamentals (Volume 2)", 31 August 2001, ORDNANCE INDUSTRY PRESS, CN, ISBN: 7-80172-044-X, article XIA, LUYI ET AL.: "Chapter 17 Signal Operation and Processing Circuits", pages: 499 - 536, XP009542138
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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