Patent ID: 8471490

Claim:
A circuit arrangement for voltage conversion comprising: a forward branch with a first load terminal connected to an electrical load, wherein the electrical load is adapted to be operated with pulse width modulation, and wherein the forward branch comprises a voltage converter connected on an output side to the first load terminal, and a feedback branch with a sampling device for sampling a voltage that can be tapped at the electrical load, wherein the feedback branch is connected to the forward branch, wherein the sampling device comprises a first switch that is coupled at a first terminal to a second load terminal at which the electrical load is coupled, and a first capacitor that is connected at an electrode to a second terminal of the first switch and that is coupled at another electrode to the first load terminal of the forward branch, wherein the feedback branch comprises an amplifier that is connected at an input to the second terminal of the first switch, wherein the amplifier comprises a transconductance amplifier, and wherein the feedback branch comprises an impedance including a low-pass filter connected to an output side of the amplifier.