Patent ID: 9712157
Date: 2017-07-18
CPC Classifications: H02M,H02P,H03K

Claim:
1. A control for an electrical consumer, comprising: a first switching device for connecting an output for the consumer to a first potential; a second switching device for connecting the output to a second potential; a control device for activating the switching devices; a first scanning device for supplying a first signal as a function of a switching state of the first switching device, the length of the first signal corresponding to a duration of a switch-on time of the first switching device; a second scanning device for supplying a second signal as a function of a switching state of the second switching device, the length of the second signal corresponding to a duration of a switch-on time of the second switching device; and a comparator device for determining a difference in the durations of the switch-on times of the first and second switching devices on the basis of the difference in lengths of the first and second signals, wherein the difference in the durations of the switch-on times is determined based on a comparison of the first and second signals over multiple time periods, each time period corresponding to an activation cycle of the first and second switching devices.