Control circuit for piezo actuators, especially piezo valves, has charge current source switch-on device, discharge current source switch-off device, and push-pull switch for alternative activation

摘要

The circuit has a switch-on device for voltage charging of the piezo actuator and a switch-off device for discharging the actuator. The switch-on device is a charge current source (11) and the switch-off device is a discharge current source (12), so that both current sources have a push-pull switch (18) for alternative activation.