Circuit configuration for charging and discharging a plurality of capacitive actuators

Abstract

A circuit is provided for charging and discharging a plurality of capacitive actuators, which can be produced with little component outlay and minimizes power loss. The circuit has a charge capacitor, which is charged to a charge voltage predefined in relation to a reference potential, and charge circuits for charging one of the capacitive actuators in each instance which are connected parallel to the charge capacitor and in each of which one of the capacitive actuators is disposed in a series circuit with a choke and a selector/charge switch. The charge circuits have a common charge circuit section containing the choke. Discharge circuits are provided for discharging one of the capacitive actuators in each instance, which are connected parallel to the series circuits formed by the choke and the capacitive actuators and a discharge switch. The discharge circuits having a common discharge circuit section containing the discharge switch.