Reverse battery cutoff circuit for an actuator or the like

摘要

A reverse battery protection circuit for an actuator or the like. The circuit includes at least a first transistor and a second transistor which is coupled to both the first transistor and a voltage supply in a manner wherein the second transistor is adapted to turn the first transistor off in the event of an interruption in the voltage supply.

主权项

1. A battery protection circuit comprising:
a voltage supply; a first circuit section coupled to the voltage supply and including at least a first transistor; and a second circuit section coupled to both the voltage supply and the first circuit section and including at least a capacitor and a second transistor coupled to the capacitor and adapted to turn the first transistor off in the event of an interruption in the voltage supply, the first transistor being located on a first circuit line and the second circuit section further comprising a resistor located on a second circuit line in series with the capacitor, the second transistor including an emitter coupled to the second circuit line at a point on the second circuit line between the capacitor and the resistor.