Chopping energization control device

Abstract

A chopping energization control device is made up of a first switching element interposed between one end of a load and one terminal of a power supply, a second switching element interposed between the other end of the load and the other terminal of the power supply, a signal generation device for generating an energization indication signal which makes the first switching element and the second switching element conductive in order to establish a chopping energization control of the load, and a control device for giving a delay, in response to the energization indication signal, between when the first switching element is made to be conductive and when the second switching element is made to be conductive. The control device has a changeover device for establishing, whenever a set time duration elapses, that an earlier conductive switching element and a later conductive switching element are interchanged with each other where the one of the first switching element and the second switching element and the other are defined as the earlier conductive switching element and the later conductive switching element, respectively.

Dependencies are inferred from the claim text.