Drive circuit of electronic-switch series structure

A kind of driving circuit with electronic switches in serial connection structure includes an electronic switch module and an active drive module, wherein

• the electronic switch module includes:
• electronic switch K1 to Kn, D and S terminal of n pcs electronic switches in series connection in turn, S terminal of the nth electronic switch Kn connect to D terminal of n−1 electronic switch Kn−1, where:
• n≥2, n is an integer;
• the active drive module includes:
• active drive circuit Dr1 to Drn, filter capacitor C1 to Cn, current limiting element R12 to R1n, and voltage conversion isolation diodes D12 to D1n and drive signal isolation diode D22 to D2n, electronic switches are driven by corresponding active drive circuit;
• the input terminal of the active drive circuit Dr1 connecting with the electronic switch K1 is connected to a pulse signal generator;
• the power supply terminal of the active drive circuit Dr1 is connected with a Vcc power supply terminal;
• the ground terminal of the active drive circuit Dr1 is connected with a Vcc ground terminal, the filter capacitor C1 and S terminal of the electronic switch K1 respectively;
• the output terminal of the active drive circuit Dr1 is connected with the G terminal of the electronic switch K1;
• the D terminal of the electronic switch K1 is connected with the S terminal of the electronic switch K2;
• the input terminal of the active drive circuit Drn connecting with the electronic switch Kn is connected with the Vcc power supply terminal through the drive signal isolation diode D2n;
• the power supply terminal of the active drive circuit Drn is connected with the VCC power supply terminal through the current limiting element R1n and voltage conversion isolation diode D1n, and the power supply terminal of the active drive circuit Drn is also connected with the filter capacitor Cn;
• the ground terminal of the active drive circuit Drn is connected with the filter capacitor Cn, the S terminal of the electronic switch Kn and the D terminal of the electronic switch Kn−1;
• the output terminal of the active drive circuit Drn is connected with the G terminal of the electronic switch Kn;
• from the electronic switch K2 to Kn, the electrical energy and the driving pulse of the electronic switch K1 are obtained successively;
• the electronic switch K1 to the electronic switch Kn on and off in turn.