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Resonance drive oscillator circuit

  • US 4,578,650 A
  • Filed: 06/15/1983
  • Issued: 03/25/1986
  • Est. Priority Date: 06/15/1983
  • Status: Expired due to Fees
First Claim
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1. Drive circuit apparatus for energizing an actuator mass at its natural resonance, comprising:

  • (a) drive circuit means arranged and configured for operative connection to an actuator mass, for energizing said actuator mass for movement according to a square-wave drive signal moving between first and second energy levels;

    said actuator mass producing a periodic actuator output signal when so energized;

    (b) sense means operatively connected with said actuator means for sensing said actuator output signal and for providing a sensed signal in response thereto; and

    (c) blanking circuit means operatively connected with said sense means for actively blanking said sensed signal at those transition times when said drive signal moves between said first and said second energy levels.

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