Patent ID: 7534121

Claim:
A secure socket apparatus comprising: a socket unit comprising at least one socket for receiving a plug of an electronic device; a power supply unit comprising a switch module connected to the socket, at least one comparing element connected to the switch module and a sensing module connected to the switch module; and an overload-avoiding unit connected to the comparing element, wherein the overload-avoiding unit can be connected to the mains so that electricity can be provided to the electronic device from the mains through the socket apparatus, wherein the comparing element comprises: a Hall element connected to the switch module; a first amplifier connected to the Hall element: a second amplifier connected to the first amplifier; a first comparing element connected to the first amplifier; a second comparing element connected to the first amplifier; a third comparing element connected to the first amplifier; a peak sensor connected to the second amplifier; a differential circuit connected to the peak sensor; a latch circuit connected to the differential circuit on one hand and connected to the third comparing element on the other hand; a driver circuit connected to latch circuit on one hand and connected to the switch element on the other hand; a first light connected to the first comparing element; a second light connected to the second comparing element; and a third light connected to the third comparing element.