Power Supply Equipment Utilizing Interchangeable Tips to Provide Power and a Data Signal to Electronic Devices

Power supply equipment comprising:

• an adapter to convert power from a power source, external to the adapter, to DC power for powering an electronic device;
• the adapter including circuitry for producing a first data signal output which is representative of the amount of power available from the adapter;
• an interconnection device which is placed between the adapter and the electronic device and being removable from the adapter and the electronic device, said interconnection device having:
• a plurality of conductors to transfer the DC power and the first data signal to the electronic device;
• and
• receive and transmit circuitry to receive data from the electronic device which allows the electronic device to interrogate the interconnect device and in response transmit a second data output to the electronic device such that the electronic device may determine whether or not the interconnect device is approved to be used with the electronic device.