CONVERTER UNIT AND METHOD FOR CONVERTING A VOLTAGE

摘要

The present invention relates to a converter unit (10) for converting an input voltage (V10) to an output voltage (V20). The converter comprises input terminals (12, 14) for connecting the converter unit (10) to a voltage supply (16) and for receiving the input voltage (V10) from the voltage supply (16) and output terminals (18, 20) for connecting the converter unit (10) to a load for driving the load. A controllable switch (22) is connected to an inductor (26). The converter unit further comprises a current detector (34) for detecting a current (130) of the inductor (26), a voltage slope detector (38) for detecting a slope of a voltage (V30) measured across the controllable switch (22), and a control unit (32) for controlling the controllable switch (22) on the basis of the inductor current (130) and the voltage slope.