Patent ID: 9656681
Date: 2017-05-23
CPC Classifications: B61L

Claim:
1. A circuit arrangement for revealing errors in a signaling light, the circuit arrangement comprising: an electronic signal transmitter configured to disconnect itself reversibly in the event of an error; and an actuating part, configured for incandescent lamps, for actuating and monitoring said signal transmitter; a resistor configuration connected to said signal transmitter to enable a revelation of errors to differentiate between line-conditioned influencing voltage and errors in the signal transmitter in that a high-impedance signal transmitter prompts a signal transmitter voltage to be higher than the line-conditioned influencing voltage; and wherein a voltage threshold value is provided for error differentiation between the signal transmitter voltage and the influencing voltage, and wherein a rise above the voltage threshold value indicates an error in the signal transmitter and a drop below the voltage threshold value indicates a presence of an influencing voltage.