Patent ID: 8797005

Claim:
A boost converter, comprising a switching element, a first diode, a second diode, a first inductor, a second inductor, a first capacitor, a direct current (DC) voltage input terminal and a DC voltage output terminal, wherein the first inductor, the second inductor, the first capacitor and the second diode are connected in sequence between the DC voltage input terminal and the DC voltage output terminal, the second diode has an anode connected to the first capacitor and a cathode connected to the DC voltage output terminal, the switching element comprises a first end, a second end and a third end for controlling connection or disconnection between the first end and the second end, the first end is connected between the first inductor and the second inductor, the second end is connected to a ground, the third end is adapted to receive a drive signal, and the first diode has a cathode connected to the anode of the second diode and an anode connected to the ground; wherein when the first end and the second end of the switching element are connected to each other, the first diode is turned on to form a current loop through the second inductor, the first capacitor and the first diode, such as to charge the second inductor and clamp an anode voltage of the second diode to the ground.