Patent ID: 7551416
Filing Date: 2009-06-23
Classification: G06F,H02H

Abstract:
1. A power supply equipped with an independent overload protection mechanism that has a single AC power input front end and a plurality DC power output rear end, wherein said front end receives power from said single AC power input which thereafter passes through an internal commutation filter circuit, a control circuit and a transformation circuit and wherein said single AC input is split to become said plurality of DC power outputs to drive at least one electronic device at said rear end, where said rear end comprises a protection circuit to receive a power use value captured from a DC power cord input to the electronic device, wherein the control circuit and the transformation circuit include at least two sets of combination circuits to output the DC power to the electronic device at the rear end, the power use value being captured from each set of the combination circuits that is sent to the protection circuit, the protection circuit receiving the power use value and determining an overload condition to output a protection signal to the control circuit to stop or suspend the DC power on the DC power cord so that the electronic device at the rear end is not driven and wherein the control circuit is connected to an external controller and an alert unit, said external controller regulates on/off level of the control circuit and turns off the control circuit when the electronic device is overloaded or functions abnormally.