Elmos Semiconductor Se

André Sudhaus

Fikret Abaza

Uwe Frieman

Control circuitry for the load voltage of a safety-relevant load is sensitive to values of the load voltage outside a safe voltage range. The control circuitry includes a seventh node, a reference potential, a dominant main control circuit, and a non-dominant emergency control circuit. The seventh node is part of the dominant main control circuit, and not part of the non-dominant emergency control circuit. The load voltage of the safety relevant load drops between the seventh node and the reference potential. The dominant main control circuit includes the load voltage as a control parameter, whereas the non-dominant emergency control circuit does not. In the event of an uninterrupted dominant main control circuit, the load voltage depends on the load voltage, and in the event of an interrupted dominant main control circuit, does NOT depend on the load voltage but is controlled nevertheless.

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Recklinghausen, Germany

André Sudhaus