Level shifter for power electronics circuits

A power electronics circuit, comprising:

• a power converter circuit comprising a high-side GaN switch device coupled in series with a low-side GaN switch device at a switch node;
• a first gate driver configured to drive a gate of the low-side GaN switch device;
• and
• a second gate driver configured to drive a gate of the high-side GaN switch device,
• wherein the second gate driver comprises:
• a current pulse generation circuit coupled to a first supply rail and a first reference rail and configured to output non-overlapping first and second current pulses based on opposite edges of a logic input signal, the first reference rail being at ground;
• a latch and a current mirror circuit coupled to a second supply rail and a second reference rail, the current mirror circuit configured to mirror the non-overlapping first and second current pulses such that the latch is set when the first current pulse is active and reset when the second current pulse is active, the second reference rail corresponding to the switch node of the power converter circuit;
• and
• a voltage headroom circuit configured to mitigate voltage headroom loss between the second supply rail and the first reference rail, independent of an electric potential difference of the second reference rail.