Method and circuit for controlling the drive motion of a gyroscope

A control circuit for controlling a drive movement of a gyroscope, comprising:

• a phase control loop configured to control a frequency of the drive movement of the gyroscope;
• an amplitude control loop configured to control an amplitude of the drive movement of the gyroscope;
• and
• a digital control unit configured to activate the phase control loop and the amplitude control loop;
• wherein the phase control loop and/or the amplitude control loop includes a time-discrete analog filter with at least one integrated signal amplifier, which is switched on by the digital control unit during a sampling phase and switched off by the digital control unit during a reset phase;
• and
• wherein a duty cycle between a duration of the sampling phase and a duration of the reset phase is configurable by the digital control unit of the control circuit to set a target variable corresponding to an objective of the control circuit.

An integrated circuit, comprising:

• a control circuit for controlling a drive movement of a gyroscope, the control circuit including:
• a phase control loop configured to control a frequency of the drive movement of the gyroscope,
• an amplitude control loop configured to control an amplitude of the drive movement of the gyroscope, and
• a digital control unit configured to activate the phase control loop and the amplitude control loop,
• wherein the phase control loop and/or the amplitude control loop includes a time-discrete analog filter with at least one integrated signal amplifier, which is switched on by the digital control unit during a sampling phase and switched off by the digital control unit during a reset phase, and
• wherein a duty cycle between a duration of the sampling phase and a duration of the reset phase is configurable by the digital control unit of the control circuit to set a target variable corresponding to an objective of the control circuit.

A gyroscope device, comprising:

• a control circuit for controlling a drive movement of a gyroscope, the control circuit including:.
• a phase control loop configured to control a frequency of the drive movement of the gyroscope,
• an amplitude control loop configured to control an amplitude of the drive movement of the gyroscope, and
• a digital control unit configured to activate the phase control loop and the amplitude control loop,
• wherein the phase control loop and/or the amplitude control loop includes a time-discrete analog filter with at least one integrated signal amplifier, which is switched on by the digital control unit during a sampling phase and switched off by the digital control unit during a reset phase, and
• wherein a duty cycle between a duration of the sampling phase and a duration of the reset phase is configurable by the digital control unit of the control circuit to set a target variable corresponding to an objective of the control circuit.