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HUI Liangliang,WANG Kaiming,CHEN Huatai,WANG Jiangbin.Design and Research of Intelligent Switch Power-taking Circuit for Single-fire-wire Power Supply[J].JOURNAL OF POWER SUPPLY,2021,19(2):128-135
Design and Research of Intelligent Switch Power-taking Circuit for Single-fire-wire Power Supply
Received:December 15, 2018  Revised:December 03, 2020
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DOI:10.13234/j.issn.2095-2805.2021.2.128
Keywords:single-fire-wire  power supply  intelligent switch  power-taking circuit
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AuthorInstitutionEmail
HUI Liangliang Shaanxi Railway Institute, Weinan , China huiliang19890228@163.com
WANG Kaiming State Grid Baiyin Power Supply Company, Baiyin , China
CHEN Huatai State Grid Baiyin Power Supply Company, Baiyin , China
WANG Jiangbin School of Electrical Engineering, Xi'an Jiaotong University, Xi'an , China
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Abstract:
      A power-taking circuit for a single-fire-wire power supply intelligent switch is designed. First, the basic working principle for this switch is analyzed, and the standby power-taking circuit is analyzed. On this basis, two design schemes for the single-fire-wire power supply intelligent switch are proposed. Then, through the comparison between the two design schemes, the design scheme for the auxiliary power-taking circuit based on a power module is selected, and the specific schematic diagram is drawn. In addition, an experimental test platform was built. Finally, the experimental waveforms of the single-fire-wire intelligent switch in standby state, working state and the on-off process were measured at each node on the experimental platform. The theoretical analysis and experimental results show the correctness and effectiveness of the single-fire-wire power supply intelligent switch under the design scheme.
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