I have a noob question. If I'm using a 600V 25v(35vdc) rails transformer with this rectifier board what will work best: MUR3020PT - 200v 15A, MUR3060PT - 600v 15A or MUR860GOS-ND 600v 8A
Also for the snubber will .1 watt resistors work. I have a few laying around.
Thanks for the help... JohnnyP.
Also for the snubber will .1 watt resistors work. I have a few laying around.
Thanks for the help... JohnnyP.
I would recommend 600mW metal film, ordinary size.
0.1 ohms is a bit little but the cap will do some good at least.
Documentation for the DRV134 can found on the wiki page and also here
You can also find very detailed pictures if you go to my webpage.
Documentation for the DRV134 can found on the wiki page and also here
You can also find very detailed pictures if you go to my webpage.
Have you downloaded the documention?
The heatsink is connected to the cathode of the diodes. The groundplane under two of the heatsinks is also connected to the cathodes. No risk for short circuit in other words. The two other heatsinks are not in contact with the pcb since the groundplane is removed under them.
All copper areas are connected to something, so yes, you should be careful about that.
The heatsink is connected to the cathode of the diodes. The groundplane under two of the heatsinks is also connected to the cathodes. No risk for short circuit in other words. The two other heatsinks are not in contact with the pcb since the groundplane is removed under them.
All copper areas are connected to something, so yes, you should be careful about that.
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only red unless there is a huge demand.
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Joined 2002
Hi, I did some work a while ago on PBC solder resist and silk screen overlay materials.
Green resist is the most stable and as it is also the most common tends to be in the best condition at the PCB fabricators. Red unfortunatley is very slightly hydroscopic - i.e it absorbs a small amount of water. (we manufacture accurate dielectric based soil moisture probes hence this kind of thing is important to me)
Yellow silk screen was the best in my tests (Although these were a long time ago) at that time white contained some oxide material which made it very slightly conductive. However when I asked recently the PCB manufacturer said they were unaware of any problems with white silk screen these days. (Might be different if you get your PCBs manufactured in China)
Whilst this is probably not of any consequence on a rectifier PCB, if you are looking at doing something with low currents, that needs to be extreemly stable or that needs very low leakages then it may be worth thinking about.
Regards,
Andrew
Green resist is the most stable and as it is also the most common tends to be in the best condition at the PCB fabricators. Red unfortunatley is very slightly hydroscopic - i.e it absorbs a small amount of water. (we manufacture accurate dielectric based soil moisture probes hence this kind of thing is important to me)
Yellow silk screen was the best in my tests (Although these were a long time ago) at that time white contained some oxide material which made it very slightly conductive. However when I asked recently the PCB manufacturer said they were unaware of any problems with white silk screen these days. (Might be different if you get your PCBs manufactured in China)
Whilst this is probably not of any consequence on a rectifier PCB, if you are looking at doing something with low currents, that needs to be extreemly stable or that needs very low leakages then it may be worth thinking about.
Regards,
Andrew
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