Single-phase half-control diode clamping bridge arm seven-level rectifier

A single-phase half-control diode clamping bridge arm seven-level rectifier comprises an alternating current power supply ug, an inductor L, diodes D1 to D6, switching tubes S1 to S6, a capacitor C1, a capacitor C2 and a capacitor C3. Wherein the switching tubes S3 and S4 and the diodes D5 and D6 respectively form two groups of back-to-back structures which are reversely connected in series, and an A1 unit is formed between the rectifier bridge arms in an embedded construction mode; the switching tube S5 and the diodes D1 and D2 are respectively connected with the switching tube S6 and the diodes D3 and D4 to form two device units, and the two device units and the capacitors C1, C2 and C3 form an A2 unit, so that the seven-level output capability is realized. The single-phase half-control diode clamping bridge arm seven-level rectifier is symmetrical in circuit structure, convenient to integrate, simple in switching tube pulse distribution mode and easy to control. Compared with a traditional rectifier, the r