Method for controlling a load with A.C. voltage and device to carry out this method

Abstract

Abstract Using semiconductor switches which can be turned off, it is possible to control the alternating current flowing through a load using the phase-gating principle or the phase-chopping principle. However, it is necessary to operate with phase-gating for an inductive load and with phase-chopping for a capacitive load. A method and a device are intended to be created which allow no attention to be paid to the respective type of load. To this end, according to the invention, a test program is initiated first of all when the mains voltage is applied, by means of which the type of load is determined and, subsequently, phase-gating is used for an inductive load and phase-chopping for a capacitive and/or resistive load. <IMAGE>

Inventors

• 👤 Gerhard Clever

Bibliographic Details