System and method for power application to an information handling system

A method for supplying power to an electronic system, the method comprising:

• accepting AC power at a power adapter;
• converting the AC power to a first DC power;
• providing the first DC power to the electronic system;
• receiving authorization for a second DC power from the electronic system;
• and
• providing the second DC power to the electronic system.

An AC-to-DC power adapter comprising:

• an AC power plug operable to receive AC power from an AC power source;
• a transformer operable to convert AC power to DC power;
• a DC power plug operable to provide DC power to an electronic device;
• a low power output module interfaced with the transformer and operable to output a low DC power from the transformer at the DC power plug;
• a high power output module interfaced with the transformer and operable to output a high DC power from the transformer to the DC power plug;
• and
• a power communication module interfaced with the low power output module and the high power output module, the power communication module operable to communicate with the electronic device using the low DC power and to restrict output of high DC power by the high power output module until the electronic device sends authorization for high DC power.