High-gain DC/DC converter

The utility model provides a high gain DC/DC converter, which is characterized in that a first inductor, a third inductor, a sixth inductor, a second inductor, a fourth inductor and a fifth inductor respectively form a three-winding coupling inductor, the first inductor and the second inductor are primary windings, the third inductor and the fourth inductor are secondary windings, the fifth inductor and the sixth inductor are tertiary windings, and the fifth inductor and the sixth inductor are secondary windings. The leakage inductor and the magnetization inductor of the first inductor are respectively a seventh inductor and a ninth inductor, the leakage inductor and the magnetization inductor of the second inductor are respectively an eighth inductor and a tenth inductor, the leakage inductors of the third inductor and the fifth inductor are eleventh inductors, and the leakage inductors of the sixth inductor are twelfth inductor and fourth inductor; through the novel inductive coupling structure, high voltag