Generation of positive and negative switch gate control voltages

A system for controlling a high-power drive device, the system comprising:

• an output terminal of a driver integrated circuit;
• a first power supply terminal of the driver integrated circuit configured to receive a first power supply voltage;
• a second power supply terminal of the driver integrated circuit configured to receive a second power supply voltage;
• a third power supply terminal of the driver integrated circuit configured to provide a regulated voltage;
• and
• a voltage regulator circuit of the driver integrated circuit configured to provide the regulated voltage, the regulated voltage having a level between a first level of the first power supply voltage and a second level of the second power supply voltage and the regulated voltage being based on a predetermined voltage level for a difference between the first power supply voltage and the regulated voltage.

A method for controlling a high-power drive device, the method comprising:

• charging a control node of the high-power drive device by delivering charge from a voltage regulator filter capacitor and from a first power supply node via a gate driver coupled between the first power supply node and a second power supply node, the high-power drive device being coupled to a third power supply node;
• discharging the control node of the gate driver by delivering charge to the voltage regulator filter capacitor and to the second power supply node via the gate driver;
• and
• providing a regulated voltage to the third power supply node based on a first voltage on the first power supply node, a second voltage on the second power supply node, and a predetermined turn-on voltage level.