YANG Shengyua. Analysis of power source of permanent magnetic controller for mine-used high-voltage switch and its desig[J]. Journal of Mine Automation, 2015, 41(12): 12-15. DOI: 10.13272/j.issn.1671-251x.2015.12.004
Citation: YANG Shengyua. Analysis of power source of permanent magnetic controller for mine-used high-voltage switch and its desig[J]. Journal of Mine Automation, 2015, 41(12): 12-15. DOI: 10.13272/j.issn.1671-251x.2015.12.004

Analysis of power source of permanent magnetic controller for mine-used high-voltage switch and its desig

  • Existing status of power source of permanent magnetic controller for mine-used high-voltage switch was analyzed with a conclusion that existing products were poor in reliability, large in electromagnetic interference and long in action time. A design scheme of power source of permanent magnetic controller for mine-used high-voltage switch was proposed by use of active power factor correction technology as well as a design example based on ML4824. The design example has actual power factor of 0.98, output ripple wave voltage of 2.4 V and a little of harmonic wave interference. The design example shortens charging time of electric capacity when it is used in permanent magnetic controller for mine-used high-voltage switch, and makes breaking time of permanent magnetic controller achieve the same level of ones on the ground.
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