Hi
I have made the PCB and assembled it. Now i am facing a new problem. When SMPS current is on I am not getting correct voltage. First of all by using multi meter i am getting some random values. After switch off my SMPS i am getting correct voltage and able to measure the voltage also it...
After successful project of Half bridge SMPS 1KV I am going for net project Full bridge 2KV. One doubt is whether to use IR2110 or GDT for mosfet/IGBT driver. I do not have knowledge on GDT. Can any body guide me how to make(Core/wire size/Turns) GDT as per below picture.
Thanks
S Das
Hi
Today I have test with temporary setup my SMPS with 35V power supply.Every thing works well. Attached wave form for your reference.
Again i connected with 230v then same issue bulb is glowing.
Regards
Samarendra Das
Thanks for quick reply Silivio
My wave form without main power on is very good. But after switch on main power i am getting this type of waves at Mosfet. I have removed transformer also still I am getting this type of wave.
Please clarify setting of Oscilloscope marked in red no 1 and 2...
Today I add 10K register at Source to Gate of Mosfet. after that i connect mosfet and it was ok without PWM board and Transformer. Then i connect PWM board and bulb glow continuously. Then i connect Transformer and found output put voltage +44 and -44.
I took this wave form at...
Today I have tested my PWM board connected with Main PCB.
This picture taken from gate side of two mosfets with MAIN POWER OFF condition. Please guide me can I POWER on main with this setup.
First Time DIY on SMPS 600W
Hi Everybody
First time i have doing my DIY on SMPS. I followed attached schematic. Time of testing PWM board alone it is fine and waves are very good. After connecting to main PCB( Now i am using general purpose board) first time it burnt IR2110 and SG3525. IRFP400...