Patent ID: 8253403
Filing Date: 2012-08-28
Classification: H02M

Abstract:
1. A converting circuit, comprising: a converting module for converting an input voltage into an output voltage, comprising a first switching unit, a energy storage unit, an energy-releasing unit, and a capacitance unit, wherein the first switching unit is coupled between the input voltage and the energy storage unit, the energy-releasing unit is coupled to the energy storage unit for releasing a stored energy of the energy storage unit when the first switching unit is turned off, and one end of the capacitance unit is coupled to the energy storage unit to provide the output voltage to a load; a controller, generating a first controlling signal to control the first switching unit according to a current detecting signal indicative of a current through the energy storage unit and a voltage detecting signal indicative of the output voltage; and a discharging circuit, coupled to the capacitance unit, for discharging a stored energy of the capacitance unit.