| 摘要 |
A drive circuit for controlling at least one device having first and second electromagnetically operable actuators, the drive circuit having first and second terminals for connection to a voltage supply and comprising a first controllable switch in connection with one side of the actuators and the first terminal. Each actuator has an associated second controllable switch in connection with the other side of the respective actuator, whereby opening and closing of the first and second switches serves to control selection and actuation of the actuators. The circuit further comprises a sensor arrangement for providing independent sensing of the current flowing through each of the actuators, each actuator having an associated diode in connection with the respective second controllable switch to ensure current flows through the sensor arrangement when the first controllable switch is opened and the second controllable switch is closed.
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