Regulated Powe supply 0-15V 25A

[simce]

pcb tca785

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

 

[mrcube_ns]

voltage regulator 25a 15v

Sorry for waiting I finaly find time to post schematic.

Feed back for current.

 

[mrcube_ns]

power supply + tca785 + pulse transformer

3 pulse rectifier theory.

 

[mrcube_ns]

what do thiristors do

Schematic with 6 thyristors rectifier bridge.

 

[mrcube_ns]

power supply using ic tca 785 german

Scematic with 3 triacs. This is my first solution for galvanic mashine. It's not perfect but its still working after 8 years.

 

[mrcube_ns]

tca785 ile sinyal

Some schematics and pcb's in e@gle format.

 

[tinhthanthep]

0-15v

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

 

[tinhthanthep]

secundar

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!

 

[hatnang87]

tca785 app notes

thanks but it's still not very clear

 

[hatnang87]

similar to tca785

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

 

[barryforever]

charger battery 15v 2,5a schematic

if you need ac you can use SCR or TRIAC
if you need you have to use MOSFET