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Multi-voltage DC output with single reactor voltage control

  • US 4,471,423 A
  • Filed: 02/17/1982
  • Issued: 09/11/1984
  • Est. Priority Date: 02/17/1982
  • Status: Expired due to Fees
First Claim
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1. A regulated direct current output circuit having a low frequency or high frequency alternating current input, a transformer, a common power regulating means on the input side of the transformer, and an output voltage sensing means, said voltage sensing means being connected in the output of said circuit and controlling the operation of said common power regulating means;

  • said power regulating means being arranged to control the power throughput of the transformer which has at least a bifilar wound secondry winding with a centre-tap and a first pair of balanced taps, said first pair of balanced taps being one on each side of said centre-tap;

    a pair of oppositely facing diodes connected on one side of each diode to each of said balanced taps, the other side of each of said pair of diodes being connected to the other side of the one diode of the pair of diodes which is connected to the other of said balanced taps and which has the same polarity of connection;

    where the connections of said diode pairs opposite said balanced taps are facing the output of said circuit;

    and a pair of polarized capacitors connected oppositely facing to said centre-tap, and to the connected sides of said pairs of diodes which are remote from said balanced taps;

    where all elements in said output of said circuit, including said bifilar wound secondary winding, are closely coupled, thereby to assure close output regulation of all output voltages using a single voltage sensing means.

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