This paper first analyzes the charging process of uniform distributed parameter circuits charged by DC voltage supply, then analyzes rectifying voltage supply to charge the charging circuit, and calculates the ununiformity of the charging voltage of stage capacitors.

Then through the establishment of the EMTP simulation model of impulse voltage generator,the impact of component parameters of charging circuit,charging methods and the charging time on the ununiformity is investigated.

In electrical capacitance tomography,the charge/discharge circuitt suffers from the charge injection problem arising from the CMOS switches.

The orthonormal design of experiments for the optimization of the parameters of the discharge circuit in the CuBr vapour lasers power supply;

High power laser power conditioning system new discharge circuit research;

The methods in which suppress the EMI and improve system s security in terms of discharge circuit, laser cavity, hard- software designs were discussed.