Gm global technology operations llc (20250007440). CONTROL OF SWITCHING SPEED IN A MULTIPHASE INVERTER

CONTROL OF SWITCHING SPEED IN A MULTIPHASE INVERTER

Organization Name

gm global technology operations llc

Inventor(s)

Muhammad Hussain Alvi of Troy MI (US)

Yilun Luo of Ann Arbor MI (US)

Brian A Welchko of Oakland Township MI (US)

Suresh Gopalakrishnan of Troy MI (US)

CONTROL OF SWITCHING SPEED IN A MULTIPHASE INVERTER

This abstract first appeared for US patent application 20250007440 titled 'CONTROL OF SWITCHING SPEED IN A MULTIPHASE INVERTER

Original Abstract Submitted

a system includes an inverter configured to output multiphase alternating current (ac) currents to an electric motor, the multiphase ac currents including a first phase current and a second phase current, the inverter including a set of switches for each phase current. the system also includes a switching controller operably connected to each set of switches, the switching controller configured to control a gate driver connected to a switch of the set of switches, the switching controller configured to determine a time difference between a first switching event of a first phase and a second switching event of a second phase during a switching cycle, and control a switching speed of the switch based on the time difference.