Patent ID: 7047119

Claim:
A circuit arrangement for controlling electrical current in loads by pulse width modulation, comprising at least two driver stages ( 10 ) provided for actuation of the loads and one or more current measuring devices ( 3 ), the number of current measuring devices ( 3 ) being smaller than the number of the driver stages, wherein at least one multiplexer ( 4 ) is provided conducting current measurement signals by way of the load current in the driver stages to one or more of the current measuring devices in dependence on one or more control signals ( 30 , 31 ) for the multiplexer, wherein the control signals are produced by a checking device ( 5 ), wherein the checking device comprises a de-multiplexer output ( 34 ) which allocates the digital output ( 33 ) of an A/D converter to current memory locations ( 32 , 32 ′).