Electrostatic actuator, switch device, power supply device, and program

A switch device, comprising:

• a base section;
• a movable electrode section held to be displaceable in a predetermined direction with respect to the base section;
• and
• a plurality of fixed electrodes fixed to the base section to be separated from the movable electrode section along a movable direction of the movable electrode section and face the movable electrode section, the plurality of fixed electrodes being electrically separated from each other,
• wherein switching between a conduction state and a non-conduction state between different terminals is performed in accordance with a drive voltage selectively applied to the plurality of fixed electrodes and a voltage value of the drive voltage.

A power supply device, comprising:

• a storage capacitor connected to an input section in parallel;
• a supply control switch configured to include a movable electrode section held to be displaceable in a predetermined direction with respect to a base section and a plurality of fixed electrodes fixed to the base section to be separated from the movable electrode section along a movable direction of the movable electrode section and face the movable electrode section, the plurality of fixed electrodes being electrically separated from each other, and switch a connection relation between the storage capacitor and an output section between a conduction state and a non-conduction state;
• and
• a control section configured to switch a fixed electrode to which a drive voltage for driving the supply control switch is applied among the plurality of fixed electrodes,
• wherein the supply control switch switches the connection relation in accordance with the drive voltage selectively applied to the plurality of fixed electrodes and a voltage value of the drive voltage.