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    Power switch drivers with equalizers for paralleled switches

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    Downloads: 69
    Date
    2018-06-12
    Inventor
    Miao, Zichen
    Ngo, Khai D.
    Zhang, Lujie
    Metadata
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    Abstract
    Capacitors connected between gate terminals of a plurality of parallel-connected power transistors are charged and discharged in each switching cycle to provide a plurality of power transistor control waveforms from a single gate driver waveform that equalize power losses/temperatures or steady-state currents among the plurality of power transistors. The capacitors are charged to different voltages by diverting current from one transistor driver by disabling another power transistor driver at different respective times in response to measured transient or steady state current or temperature or other operational parameter.
    URI
    http://hdl.handle.net/10919/87841
    Collections
    • Scholarly Works, Center for Power Electronics Systems (CPES) [33]
    • Virginia Tech Patents [619]

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