mukeshp11
Newbie level 6
Dear All,
I am using IC 3846 for 600V to 1110 V,1.5 A SMPS.
Actually initially am testing at low voltage say 60 Volts.
Whenever i give feedback of voltage and current. there is problem like gate pulse missing for some instants.I guess i am not able to tune the feedback circuitary well.
I mean Pi tuning at comp. pin i.e pin no.7 and input of the error amplifier pins 5 and 6.
Also am not able to find any article on net related to UC 3846.
Kindly suggest something for tuning of voltage loop using appropriate res and caps desing for proper tuning.
Kindly have a look at the circuitary as an attachement for reference.Pin no. 6/7and 5.
regards
Mukesh
I am using IC 3846 for 600V to 1110 V,1.5 A SMPS.
Actually initially am testing at low voltage say 60 Volts.
Whenever i give feedback of voltage and current. there is problem like gate pulse missing for some instants.I guess i am not able to tune the feedback circuitary well.
I mean Pi tuning at comp. pin i.e pin no.7 and input of the error amplifier pins 5 and 6.
Also am not able to find any article on net related to UC 3846.
Kindly suggest something for tuning of voltage loop using appropriate res and caps desing for proper tuning.
Kindly have a look at the circuitary as an attachement for reference.Pin no. 6/7and 5.
regards
Mukesh