takao21203
- Joined Apr 28, 2012
- 3,702
I've been building smps circuits for a while, including a 400w tl494 buck converter and lm 2576 with external transistor for high voltage.
Firing a photo flash would saturate the gate drive transformer, turning off the lm2576.
I learned a lot but realised it would take more and more space. I stopped with it again.
Without experience you have to try a lot of parts and ideas, see most of them failing.
You need equipment set up too for powering, testing and measuring.
Too much effort to get good efficiency let's say 80 or more percent. Too much heat other wise, need for specialised parts like transformers.
So actually mostly I use ready made modules.
Firing a photo flash would saturate the gate drive transformer, turning off the lm2576.
I learned a lot but realised it would take more and more space. I stopped with it again.
Without experience you have to try a lot of parts and ideas, see most of them failing.
You need equipment set up too for powering, testing and measuring.
Too much effort to get good efficiency let's say 80 or more percent. Too much heat other wise, need for specialised parts like transformers.
So actually mostly I use ready made modules.