Gate driver circuit

A driver circuit for controlling a high-power switch, the driver circuit comprising:

• a flyback converter, comprising:
• a primary switch;
• a positive output rail, which is configured to provide a positive output voltage;
• a negative output rail, which is configured to provide a negative output voltage;
• and
• a controller configured to:
• receive a PWM control signal, which is for controlling the high-power switch;
• receive a feedback voltage signal, representative of a measured voltage of the positive output rail or the negative output rail;
• and
• provide a primary-side switch control signal that comprises a bursts of pulses for operating the primary switch, wherein the controller is configured to start a burst of pulses in response to an edge of the PWM control signal, and stop the burst of pulses in response to the feedback voltage crossing a threshold;
• a driving stage that is connected between the positive output rail and the negative output rail, wherein the driving circuit is configured to provide a high-power switch control signal for controlling the state of the high-power switch based on the PWM control signal.