Patent ID: 11862966
Assignee: CISCO TECHNOLOGY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A method comprising:
charging a capacitor in a surge protector based on an input power to the surge protector;
turning on a switch in the surge protector when the capacitor is charged to a charge threshold;
outputting, by the surge protector, the input power when the switch is turned on;
turning on a first transistor in the surge protector when a voltage of the input power exceeds a first input voltage threshold;
discharging the capacitor to below the charge threshold after turning on the first transistor;
turning off the switch after the capacitor is discharged below the charge threshold; and
stopping, by the surge protector, output of the input power when the switch is turned off.