Circuit for controlling a load
AssigneeWAGO Verwaltungsgesellschaft mbH
InventorsTorsten MEYER, Christian VOSS
Life of this patent
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Abstract
A circuit for controlling a load. The circuit includes a semiconductor power switch having a control input, a first power connection and a second power connection, a comparator circuit having a first input, a second input and an output for outputting an output signal, and a voltage source which is galvanically isolated from the load and is arranged to supply the comparator circuit with power. The first input of the comparator circuit is connected to the first power connection of the semiconductor power switch and a supply connection of the comparator circuit is connected to the second power connection of the semiconductor power switch and to the galvanically isolated voltage source.
Claims7
A circuit to control a load, the circuit comprising:
- a semiconductor power switch comprising a control input, a first power connection, and a second power connection;
- a comparator circuit comprising a first input, a second input, and an output to output an output signal;
- and
- a voltage source that is galvanically isolated from the load and is arranged to supply the comparator circuit with power,
- wherein the first input of the comparator circuit is connected to the first power connection of the semiconductor power switch, and
- wherein a supply connection of the comparator circuit is connected to the second power connection of the semiconductor power switch and to the galvanically isolated voltage source.
Dependencies are inferred from the claim text.