Patent ID: 7202641
Filing Date: 2007-04-10
Classification: H02M

Abstract:
1. A DC-to-DC converter for converting an input dc voltage into an output dc voltage, comprising: a first and a second input terminal; a first and a second output terminal, the first input terminal and first output terminal being connected to a common conductor; an input inductor connected to the second input terminal; an output inductor connected to the second output terminal; a capacitor connected in series between the inductors; a switch element connected to the common conductor and to a first node that is common to the input inductor and the capacitor; a unidirectional element which is connected to the common conductor and to a second node that is common to the output inductor and the capacitor, said switch element being responsive to a switch control signal applied thereto for alternately making the switch element conducting and non-conducting such that currents flowing through the inductors flow through the switch element or through the unidirectional element during an on-interval and an off-interval of the switch control signal, respectively; a first current-sensing element in series with the switch element; a second current-sensing element in series with the unidirectional element; a control circuit having at least one measurement input for receiving a current measurement signal from the first and second current-sensing elements; a reference input for receiving a reference signal; and an output for supplying the switch control signal.