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Vibrator drive circuit

  • US 10,175,045 B2
  • Filed: 09/13/2016
  • Issued: 01/08/2019
  • Est. Priority Date: 03/25/2014
  • Status: Active Grant
First Claim
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1. A combination, comprising:

  • a vibrator comprising a vibrator mass which is free to vibrate in first and second orthogonal directions;

    a signal generator for generating a drive signal which is applied to the vibrator and causes the vibrator mass to vibrate in the first direction;

    at least one phase adjusting capacitor coupled to the vibrator mass and serving to adjust the phase of the vibration of the vibrator mass in the first direction as a function of a phase correction signal applied thereto, each of the at least one phase adjusting capacitors including a stationary plate and a moveable plate, the moveable plate being coupled to the vibrator mass for movement therewith; and

    a phase detector which detects the phase at which the vibrator mass vibrates in the first direction relative to the phase of the drive signal and generates the phase correction signal as a function of the detected phase.

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