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Bassivus 27th November 2010 11:07 PM

Legato power and jumpers
 
Maybe silly question... I have searched for answer but found none

In manual for Legato says: "The Legato has three power terminals, and can be configured to use one, two or three power supplies by
installing or omitting jumpers J1-J4"
Is there a way to power Legato with two power supplies and still use bal/se part?

BrianDonegan 28th November 2010 01:08 PM

You could power both balances channels with one supply and the Bal->se with the other supply, or power the bal->se from one of the two channels.

Using the jumpers is fairly straight forward, just follow the traces.

Bassivus 28th November 2010 06:03 PM

Quote:

Originally Posted by BrianDonegan (Post 2379772)
You could power both balances channels with one supply and the Bal->se with the other supply, or power the bal->se from one of the two channels.

Using the jumpers is fairly straight forward, just follow the traces.

Ok, thanks for the answer Brian. I don't want to stress small Talema toroids to much. They are rated 500mA max. but they got quite warm with my current setup using two placid BP-s for powering Legato 1 with buffer but no jumpers meaning bal/se is left un-powered.
What would be better the compromise in this case? Also if I decide to go for powering the bal->se from one of the two channels, what would be approx. consumption for bal/se part alone and what for one full Legato channel?


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