Patent ID: 9698669
Date: 2017-07-04
CPC Classifications: H01F,H01H,H02M

Claim:
1. A control device for a switching device, the control device comprising: a rectifier configured to generate a rectified output voltage from an alternating voltage; a direct voltage converter configured to receive the rectified output voltage and to generate therefrom a specified direct voltage; a direct voltage supply unit, configured to receive the specified direct voltage and to generate a first direct voltage and a second direct voltage, wherein the first direct voltage and the second direct voltage are of different magnitudes; control electronics configured to receive the second direct voltage and to generate control signals for a first switching element and for a second switching element; a holding coil connected to the first switching element and configured to receive the first direct voltage generated by the direct voltage supply unit; and a start-up coil connected to the second switching element and configured to receive the rectified output voltage generated by the rectifier.