Please help with this project of Supercapacitor balancing using a flyback converter

Projects General Guidance
1

20241002_092623
20241002_0926231080×709 121 KB

I am driving all the switches with TLP350 (low side gate driver) but when i send pulses to sw2 and sw3 as represented by arrows . The cell does not charge.
But when i charge an extra cell without these switches it charges with no hassles.

I have been stuck on this problem for a week now
Please help.

2

Does this project involve any microcontroller (Arduino, ESP, PIC, etc.)?

If so, what type is used and how is it connected in the schematic shown,
then using the recommended tags by clicking on < code >, post the code used in the project.

If not, I think this is not the best forum to discuss your difficulty.

3

SW1,3,5,7 should be P-channel MOSFETs
All you MOSFETs are backwards.
all Caps are backwards

Maybe you should read-up on how MOSFETs work and electronics in general

4

Please show your complete circuit, especially including how the gates are driven and the rest of the circuitry around the TLP350.

5

Thank you sir.
I changed those N Channel and used the P channel then the problem was solved

6

Glad you made it work.
Have a nice day!