Patent ID: 7053676

Claim:
A circuit arrangement for generating waveforms, comprising: a voltage transformer circuit for generating an output signal with a specific waveform; and a control circuit configured to control the voltage transformer circuit; wherein the control circuit generates a first pulse-shaped control signal and a second pulse-shaped control signal to control the voltage transformer circuit; wherein the voltage transformer circuit is configured so that a voltage of the output signal is increased by each pulse of the first pulse-shaped control signal and reduced by each pulse of the second pulse-shaped control signal; and wherein the voltage transformer circuit comprises: a first series circuit operated with a supply voltage and including an inductance coil and a first controllable semiconductor switch; a second series circuit including a rectifier element and a capacitor and connected in parallel with the first controllable semiconductor switch of the first series circuit, wherein a voltage across the capacitor is tapped for the output signal of the voltage transformer; and a second controllable semiconductor switch which is connected between a connection between the rectifier element and a first terminal of the capacitor on the one hand and a second terminal of the capacitor on the other; wherein the first controllable semiconductor switch is activated by the first control signal and the second controllable semiconductor switch is activated by the second control signal.