| 摘要 |
An electrostatic actuator and drive configuration device for use in a system requiring a long term ON state operation. The device includes a first electrostatic actuator positioned to operate in the system requiring the lon g term ON state upon activation of a power supply. The device also includes a second electrostatic actuator positioned to operate in the system requiring the long term ON state upon activation of the power supply. A timer is connected to the power supply to alternately select the first or the second actuator for activation to drive the selected actuator to the ON state. The timer is controlled to select the first or second electrostatic actuator on an alternating basis to prevent either electrostactic actuator from remaining i n the ON state for more than a predetermined time without the other actuator being selected. The electrostatic actuators may be configured in parallel or in series, depending upon the demands of the system. When the electrostatic actuators are switches, linear actuators or relays, they are normally connected side by side mechanically parallel. When the actuators are shutter s, mirrors or valves, normal connection is in sequence end to end. When devices are selected to be in the ON condition, the selection should be such that ea ch device is closed before the other is opened.
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