kamalifard
Junior Member level 3
hi
i am making a buck regulator that convert a regulated 375 V DC acquired from 220 ac by a certain pfc circut to 50~175 VDC & i have used UC3844 current mode PWM ic level of output change by a potentiometer (volume) in feedback loop
losses in mosfet switch is high whatever i can,t compensate it by RL shunt snubber &it add many troublesome difficulty in circuit tr & tf of mosfet are lower than 100ns by transformer pulser
please guide me for lowering of mosfet losses
:?:becuse of useing breadbord and not useing of cuurent transformer control circuit have many noise distortion how i can alliviate distortions is pcb enough what point i should consider in design of pcb
:?:
i am making a buck regulator that convert a regulated 375 V DC acquired from 220 ac by a certain pfc circut to 50~175 VDC & i have used UC3844 current mode PWM ic level of output change by a potentiometer (volume) in feedback loop
losses in mosfet switch is high whatever i can,t compensate it by RL shunt snubber &it add many troublesome difficulty in circuit tr & tf of mosfet are lower than 100ns by transformer pulser
please guide me for lowering of mosfet losses
:?:becuse of useing breadbord and not useing of cuurent transformer control circuit have many noise distortion how i can alliviate distortions is pcb enough what point i should consider in design of pcb
:?:
