초록 ▼

An electronic drive circuit for driving an actuator mass for a sensor apparatus is disclosed. The driver requires no compensation or bridge elements. The actuator mass is directly driven by a square wave drive signal such that all of the capacitors loading errors associated with the driven actuator

An electronic drive circuit for driving an actuator mass for a sensor apparatus is disclosed. The driver requires no compensation or bridge elements. The actuator mass is directly driven by a square wave drive signal such that all of the capacitors loading errors associated with the driven actuator means are concentrated in time to that time interval in which the drive signal traverses between its two stable states. A sensor circuit connected to monitor the sensor output response signal is blanked out during the drive signal transition time interval, which effectively eliminates the transition drive noise energy from the sensed output signal.

대표청구항 ▼

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

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.