METHOD AND DEVICE FOR GENERATING CLOCK-CONTROLLED CONTROL VOLTAGE

摘要

In a method for producing a pulsed setting voltage (v). said voltage is pulse-duration modulated with an electric control variable. The setting voltage serves to act on a setting drive having an inductance, particularly an electric motor setting drive (9) of a throttle valve (11) of an internal combustion engine. In order to obtain at the same time good periodic excitation of the setting drive as well as a low electric loss power in the setting drive, the setting voltage which is pulsed with a high clock frequency (f0) is pulse-duration modulated with a low fundamental-modulation frequency (fm) as well as a control variable.