GROUND-SHARING HIGH-GAIN Z SOURCE BOOST CONVERTER

摘要

A ground-sharing high-gain Z source boost converter comprising a direct current input power supply (Vin), a first diode (D1), a first inductor (L1), a second inductor (L2), a first capacitor (C1), a second capacitor (C2), a switch transistor (S), a second diode (D2), an output capacitor (Cout), and a load. One extremity of the direct current input power supply is connected to the anode of the first diode. The cathode of the first diode is connected to one extremity of the first inductor, one extremity of the first capacitor, and the anode of the second diode. The other extremity of the first inductor is connected to one extremity of the second capacitor and a drain electrode of the switch transistor. The other extremity of the first capacitor is connected to a source electrode of the switch transistor and one extremity of the second inductor. The cathode of the second diode is connected to one extremity of the output capacitor and one extremity of the load. The other extremity of the direct current input power supply is connected to the other extremity of the second capacitor, the other extremity of the second inductor, the other extremity of the output capacitor, and the other extremity of the load. Compared with a boost converter and a conventional Z source boost converter, the present converter provides an increased voltage gain.