Method of supplying an inductive load and device for carrying out this method.

摘要

This invention concerns a process for a power supply for an inductive load, for example such as an electric motor, and a control device for the power supply to this load embodying this process, and optimizing the efficiency of the load and the device. In this process for the power supply of an inductive load, the voltage (UmLF) applied to the terminals of the load is obtained by switching a dc voltage (E) into a wave in which at least one half-period has a plateau. This invention is applicable to all types of inductive loads such as transformers and ac electric motors, with or without commutators, and particularly to single phase or multi-phase asynchronous motors. <IMAGE>