Power conversion device

Power conversion device for supplying a load with a PWM signal, comprising an inductive filter having at least an output configured to be connected to the load, the device comprising: a power conversion module supplied by an input voltage and configured for providing a plurality of output signals wherein one of the plurality of output signals is supplied to the filter; a conversion ratio control stage coupled to the power conversion module; and a controller configured to: determine a requested conversion ratio based on the input voltage and a target reference voltage; and based on the requested conversion ratio, control the conversion ratio control stage to operate in either a first operating mode, whereby the power conversion module provides the output signals in accordance with a first conversion ratio, or a second operating mode, whereby the power conversion module provides the output signals in accordance with a second conversion ratio.