Patent ID: 7307387

Claim:
A voltage converter having the following features: an input terminal (J 1 ) and an output terminal (J 2 ), a reference potential (M), a series circuit comprising a first inductor (L 1 ) and an electronic switch (S 1 ) between the input terminal (J 1 ) and the reference potential (M), a first node (N 1 ) being formed at the connection point, a series circuit comprising a first capacitor (C 1 ) and a second inductor (L 2 ) is connected in parallel with the electronic switch (S 1 ), a second node (N 2 ) being formed at the connection point between the first capacitor (C 1 ) and the second inductor (L 2 ), a series circuit comprising a first diode (D 1 ) and a mode switch (S 2 ) is connected between the first node (N 1 ) and the output terminal (J 2 ), the first diode (D 1 ) having such a polarity that it allows a current to flow from the first node (N 1 ) to the output terminal (J 2 ), a second diode (D 2 ) is connected with its anode to the second node (N 2 ) and with its cathode to the output terminal (J 2 ).