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Charging system for charging capacitors of a capacitor bank

  • US 5,969,505 A
  • Filed: 12/05/1997
  • Issued: 10/19/1999
  • Est. Priority Date: 12/05/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for controllably charging a bank of capacitors connected in series with a charging current, said apparatus comprising:

  • a charger for charging said capacitor bank and for controlling a charging current;

    parallel monitors connected in parallel with each capacitor, which detect terminal voltages developed across each capacitor and bypass said charging current at voltages in excess of a preset value;

    a detection means for detecting a voltage developed across said capacitor bank; and

    a charging control means which compares the detected voltage of said capacitor bank with a reference value for reduction and controls said charger to reduce said charging current when the detected voltage of said capacitor bank reaches the reference value for reduction.

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