Patent ID: 11932123
Assignee: POWER INTEGRATIONS, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 9:
10. An electric vehicle comprising:
an electric motor reversibly coupleable and decoupleable to receive power from a positive supply rail and a negative supply rail;
a supply capacitor coupled between the positive supply rail and the negative supply rail;
a step-down power converter coupled to draw power from the supply capacitor, wherein the step-down power converter is configured to step down a voltage across the supply capacitor and output a voltage on an output, wherein the voltage on the output is lower than the voltage across the supply capacitor; and
discharge circuitry coupled to the output of the step-down power converter, wherein the discharge circuitry is reversibly driveable to load the step-down power converter, the discharge circuitry further comprising:
a first resistance coupled with a first switch across the output of the step-down power converter;
a second resistance coupled to a second switch across the output of the step-down power converter;
a third resistance coupled to the first resistance at a bridge node, and
a fourth resistance coupled to the second resistance at the bridge node.