Patent ID: 8687341

Claim:
A control circuit for an electric unlocking device wherein the device is rated for a plurality of voltage levels, the control circuit comprising: a power stage including an input rectifier; a microcontroller; a voltage regulator; and means for connecting the control circuit to an external power source having one of said plurality of voltage levels; and switching means for selecting a specific voltage input level for a connected one of a plurality of voltage rated actuators; said input rectifier connected to said external power source to provide a DC voltage; said voltage regulator having an input connected to said rectified DC voltage and an output operably connected to power said microcontroller; said microcontroller operably connected to provide said rectified DC voltage at said specific voltage input level for a connected one of a plurality of voltage rated actuators provided that said specific voltage input level selected by said switching means matches a voltage rating of said connected one of said plurality of voltage rated actuators.