Patent ID: 9478338
Filing Date: 2016-10-25
CPC Classification: H01F

Claim Text:
1. A circuit for driving an actuator including a closing coil having a first end and a second end and an opening coil having a first end and a second end, the circuit comprising: a first electrical switch having a first terminal electrically connected to the second end of the closing coil; a second electrical switch having a first terminal electrically connected to the second end of the opening coil; a third electrical switch having a first terminal electrically connected to the first ends of the closing and opening coils; a first diode having an anode electrically connected to the second end of the closing coil; a second diode having an anode electrically connected to the second end of the opening coil; a third diode electrically connected to the first ends of the closing and opening coils; and a capacitor electrically connected to a second terminal of the third electrical switch, wherein the circuit is structured such that controlling the state of the first, second, and third electrical switches causes current flowing through the circuit to flow through one of the closing coil and the opening coil and to not flow through the other of the closing coil and the opening coil.