Power converter circuit having a controller for generating a drive signal for driving an electronic switch with high avalanche robustness

A power converter circuit, comprising:

• an inductor and rectifier circuit configured to receive an input voltage and an input current and to supply an output voltage and an output current based on the input voltage and the input current, the inductor and rectifier circuit comprising an inductor connected in series with an electronic switch, and a rectifier circuit;
• and
• a controller configured to generate a drive signal for driving the electronic switch of the inductor and rectifier circuit,
• wherein the electronic switch comprises:
• a drain node,
• a source node and a gate node;
• a plurality of drift and compensation cells each comprising a drift region of a first doping type and a compensation region of a second doping type complementary to the first doping type;
• and
• a control structure connected between the drift region of each of the drift and the compensation cells and the source node,
• wherein the drift region of each of the plurality of drift and compensation cells is coupled to the drain node and the compensation region of each of the plurality of drift and compensation cells is coupled to the source node,
• wherein each of the plurality of drift and compensation cells, in a current flow direction of the transistor device, has a first end, a second end opposite the first end, a first intermediate position spaced apart from the first end and the second end, and a second intermediate position spaced apart from the first end and the second end,
• wherein a first doping parameter of a first doping profile that represents a doping concentration of the drift region in the current flow direction monotonically increases between the first intermediate position and the first end, and
• wherein a second doping parameter of a second doping profile that represents a doping concentration of the compensation region in the current flow direction monotonically increases between the second intermediate position and the second end.