zeus_threat
Member
Hi i've started to start planning an IR2153 based SMPS: its till in the design stage i need to complete the SMPS calculation and the scematics.
Am mostly concentrating on the issues with IR2153 before embarking on the power calculations which means
1) soft start at the poewr input rails
2) I'll use a seperate supply before using an auxiliary winding for powering the SMPS like i did for my
EI-33/TL 494 combination
3) I have ETD44 and EE42 cores around which should be enough for a 700W smps
4) Am still thinking of whether to use a core based approach or direct sense of low side mosfet for over current protection.
One question did anyone ever try to implement a soft start for the ic at the shutdown pin?
Am mostly concentrating on the issues with IR2153 before embarking on the power calculations which means
1) soft start at the poewr input rails
2) I'll use a seperate supply before using an auxiliary winding for powering the SMPS like i did for my
EI-33/TL 494 combination
3) I have ETD44 and EE42 cores around which should be enough for a 700W smps
4) Am still thinking of whether to use a core based approach or direct sense of low side mosfet for over current protection.
One question did anyone ever try to implement a soft start for the ic at the shutdown pin?