Rank: Advanced Member
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Joined: 2/10/2009(UTC) Posts: 299 Location: Italy
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I ordered and received a bunch of Placid's yesterday. The manual describes the default configuration for use with f.ex. Buffalo. Regarding alternative uses of this supply the manual say: "Advanced users who want to do something other than the default configuration should understand the schematic. If you don't then please don't bother." I guess I will have to study....... I would need 700 mA @6V for my modified Buffalo32 digital section. Is there anybody out there that can help me to configure the Placid for this use? Thanks, Nic
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 2,868 Location: Massachusetts, USA
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Adjust the CCS pot until the voltage across R17 (1-ohm) is .7V. Quote: If you don't then please don't bother." I guess I will have to study....... Yeah, sorry for the draft language. :) Edited by user Thursday, October 8, 2009 2:30:01 PM(UTC)
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN
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Yes, while terse, the language is not meant to be rude. Its just that there are so many variables that the only way to be sure someone does not make a mistake is to be sure they understand the circuit.
All in all, its very doable to understand all you need to know.
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Rank: Advanced Member
Groups: Member
Joined: 2/10/2009(UTC) Posts: 299 Location: Italy
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The way I try to learn electronics is to do as I'm advised to make it work without any smoke... In the process of doing so I increase my understanding of the circuitry as I hate to do things I don't understand..... I guess I should stop buying before the manual is out Thanks, Nic
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN
Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)
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Hi Nic,
I am more than happy to help. Brian actually gave you all the information you really need. :)
The rest is just making sure you heatsink is up to the job.
We can only know that if we know what your rectified voltage it, and your desired output voltage.
You told us 6V. So if you use something like a 9V transformer you should be in good shape. Even with 1.5" HS.
If you know you want ~6V I would use a fixed R for the output voltage. Assuming 2K feedback resistor you would need ~3.9K to get ~6V
Cheers! Russ
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