iepower
Junior Member level 1
Hello!
I am designing a 75W flyack SMPS, which input voltage is 18v~36vdc, output voltage is 110vdc, and output full load current is 0.65A.
The transformer primary turns are 4Ts and the secondary turns are 40Ts.
The pwm IC is UC3842B and the feedback IC is TL431.
The output ripple voltage occur oscillation while output load is between 0.1A and 0.2A.
So, I want to anyone help me solve this problem.Thanks.
I am designing a 75W flyack SMPS, which input voltage is 18v~36vdc, output voltage is 110vdc, and output full load current is 0.65A.
The transformer primary turns are 4Ts and the secondary turns are 40Ts.
The pwm IC is UC3842B and the feedback IC is TL431.
The output ripple voltage occur oscillation while output load is between 0.1A and 0.2A.
So, I want to anyone help me solve this problem.Thanks.
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