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Supplying-End Module of Induction Type Power Supply System and Voltage Measurement Method Thereof

  • US 20150349546A1
  • Filed: 08/10/2015
  • Published: 12/03/2015
  • Est. Priority Date: 01/14/2015
  • Status: Active Grant
First Claim
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1. A voltage measuring method for a supplying-end module of an induction type power supply system, the voltage measuring method comprising:

  • generating a coil signal on a supplying-end coil of the supplying-end module;

    clamping the coil signal to generate a clamp coil signal;

    performing a signal processing on the clamp coil signal to respectively generate a first signal and a second signal;

    generating a cyclic signal, wherein a frequency of the cyclic signal is equal to a frequency of the coil signal;

    comparing the first signal with the second signal via a comparator to obtain a first time and a second time when a voltage level of the first signal is equal to a voltage level of the second signal during a cycle of the cyclic signal;

    calculating a middle time between the first time and the second time; and

    sampling the clamp coil signal or the coil signal to obtain a peak voltage of the coil signal according to the middle time.

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