Dear Mr.Cube,
I'm still waiting for the schematic you offered, but because the day when i have to finish my work is closing i just want to remind you to send me the schematic. sime_mileski@yahoo.com
Best regards,
Sime
Hi mrcube
I am making a six-pulse rectifier with 6 thiristors. The rectifier supply 12VDC-1000A. I use TCA785 of siemens. But in the datasheet, i see GND pin is connect with -15VDC (power supply) and neutral? I think it is wrong. What do you think about that?
Added after 14 minutes:
I'm new user so I have not enough point to download your file. I think I will have it in recent day. Thanks
I have solved my proplems. But I have another proplem. The output DC voltage of my 3-phase rectifier is not stable. It fluctuate, I used ossiloscope to test the parts. I see interference from synchronous signal. I turn off the transformer, the noise disappear. I think the transformer cause the noise so I put a ferrit filter on the synchronous signal line. The needle of the voltmeter more stabler than before but it still unstable. I don't understand. Can anyone help me?
Thanks!
i'm newbie, too
i have problem with syns signal fed to pin 5 when i design 3 phase rectifier using 3 TCA785
because if i use 3 phase A,B,C from sources to be syns signals, it will be wrong about time to define delay angle (regard voltages, i use transformer and filter already)
thanks for your supports, I can't download file needing point, so please give me a suitable way