Patent ID: 8760218

Claim:
A regulating system for an insulated gate bipolar transistor (IGBT) that is coupled to a gate driver circuit, said regulating system comprising: a clamping circuit coupled to the IGBT; a feedback channel coupled to said clamping circuit, said feedback channel configured to transmit signals representative of a conduction state of said clamping circuit; and, at least one gate driver controller coupled to said feedback channel, said feedback channel configured to transmit the signals representative of the conduction state of said clamping circuit to said gate driver controller, said at least one gate driver controller further coupled to the gate driver circuit at a gate driver circuit input, said gate driver controller configured to regulate temporal periodicities of the IGBT in an on-condition and an off-condition, wherein said gate driver controller is configured to extract from the signals representative of the conduction state of said clamping circuit information representative of frequencies of reverse current transmission through said clamping circuit and control operation of said regulating system based on the information.