Patent ID: 7492611
Filing Date: 2009-02-17
Classification: H02M

Abstract:
1. A power-supplying device, to which an electronic device is connectable for charging or powering, the power-supplying device detecting and supplying operation voltage required by the electronic device, the power-supplying device comprising: a power input port for receiving input power from an external power source; an output port for supplying output power to the electronic device; a buck-boost circuit for selectively boosting and bucking the input power and thus supplying the output power; a controller circuit selectively initiating a detection process for detecting the operation voltage of the electronic device and controlling the buck-boost circuit to make the output power corresponding to the operation voltage of the electronic device; and detection initiation means that detects presence of the electronic device electrically connected to the power-supplying device in order to allow the controller circuit to initiate the detection process.