Patent ID: 8593215

Claim:
A power gating apparatus configured to mitigate in-rush current comprising: a controller configured to receive an input power and a switch signal; at least one front-end switch circuit assembly configured to receive an input current and the switch signal, wherein the input current is current of the input power to pass through the front-end switch circuit assembly and the switch signal is outputted; wherein the controller is configured to mitigate in-rush current by inputting the current into the at least one front-end switch circuit assembly in accordance to a target value of an in-rush current of the input power; a delay unit electrically connected to the front-end switch circuit assembly and configured to receive the switch signal, wherein the delay unit is configured to delay the switch signal to reduce the peak value of the current and outputs the switch signal; and at least one back-end switch circuit assembly electrically connected to the delay unit and configured to receive the switch signal, wherein the back-end switch circuit assembly maintains a linear relationship between the current and a voltage for outputting stable current.