The present invention provides a high-
gain taping
inductor quasi-Z-source converter. The converter comprises a
direct current input power supply (Vin), a
transformer (T) with a turn ratio of 1:n, a first
diode (D1), a second
diode (D2), a third
diode (D3), a first
capacitor (C1), a second
capacitor (C2), a first
inductor (L1), a third
capacitor (C3), a fourth diode (D4), a fourth capacitor (C4), a second
inductor (L2), a switch tube (S), a fifth diode (D5) , an output capacitor (Cout) and a load. Compared with a
flyback converter, the high-
gain taping inductor quasi-Z-source converter has
high voltage gain and is suitable for the occasion of non-isolated high gain direct
voltage transformation.