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Control circuit

  • US 3,995,208 A
  • Filed: 04/25/1975
  • Issued: 11/30/1976
  • Est. Priority Date: 04/25/1975
  • Status: Expired due to Term
First Claim
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1. In a control system for a d.c. motor, said motor having a predetermined electrical time constant and having power input terminals, said control system having a balanced condition and first and second unbalanced conditions one on each side of said balanced condition, the improvement comprising:

  • a. means controllable for generating for application to said power input terminals a first drive signal of first polarity and a second drive signal of opposite polarity, said first drive signal tending to drive said motor from said first unbalanced condition toward said balanced condition and said second drive signal tending to drive said motor from said second unbalanced condition toward said balanced condition,

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