High side switch gate drive apparatus and control method

An apparatus comprising:

• a high side switch connected between an input voltage bus and a load terminal, the load terminal being configured to be coupled to a load;
• a high side gate drive circuit configured to generate a gate drive signal for the high side switch;
• and
• a resonance suppression circuit having a first terminal connected to a gate of the high side switch, and a second terminal connected to the load terminal,
• wherein the resonance suppression circuit is configured to enter an enabled state in response to a second enable signal, the second enable signal being asserted upon expiration of a predetermined delay duration counting from a falling edge of a first enable signal applied to the high side gate drive circuit,
• and wherein, subsequent to entering the enabled state and in response to detecting that a voltage on the load terminal rises above a ground voltage potential for a first time, the resonance suppression circuit is configured to actuate a switch to pull a voltage on the gate of the high side switch down to a low voltage,
• and wherein a first drain/source terminal of the switch is directly connected to the gate of the high side switch, and a second drain/source terminal of the switch is coupled to ground.