Patent ID: 11888391
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A system operable to drive an electric motor, the system comprising:
a transistor pair, including a high-side transistor and a low-side transistor, the transistor pair coupled to the electric motor; and
a gate driver circuit coupled to the transistor pair, the gate driver circuit including:
a charge pump coupled to a bootstrap capacitor and operable to supply a current having a first value to the bootstrap capacitor;
a charge pump switch coupled between the charge pump and the bootstrap capacitor; and
a current limiter coupled between the charge pump switch and the charge pump, the current limiter is operable to limit current through the charge pump switch to a value less than the first value responsive to a control signal.