In order to improve the reverse recoverycharacteristic the excess carrier concentration close to the anode during the on-state has to be reduced.
为了改善反向恢复特性，必须降低通态过程中靠近阳极的过剩载流子浓度。
2
HEPA supply outlet diffusion perforation panel influences cleanroom air velocity field, cleanliness, cleanliness recoverycharacteristic and resistance of the diffusion panel.
高效过滤器送风口扩散孔板的开孔情况影响着室内流场、室内空气洁净度、洁净室自净时间和扩散板阻力。
3
In computing the dielectric recoverycharacteristic of HVCB during the interrupting course, the numerical results of parallel couple calculation on flow field and electric field has been performed.