Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Options
View
Go to last post Go to first unread
stewart  
#1 Posted : Tuesday, December 3, 2019 3:02:21 AM(UTC)
stewart

Rank: Advanced Member

Groups: Member
Joined: 11/10/2008(UTC)
Posts: 110
Location: New York City

Thanks: 1 times
I wanted to confirm the Mercury current consumption. Russ posted the below in the diyaudio forum, but it wasn't clear to me from the back and forth.

To confirm, total current consumption is 200ma? 100ma for L and 100 ma for R? And if you were to run a dual-mono configuration with separate power supplies for each rail (4 total supplies), current consumption would be 50ma + for L / 50ma - for L and 50ma + for R and 50ma - for R?

I couldn't tell from Russ's comment ("200ma total per rail for both") whether that meant 200ma total or 200ma per rail, so 400ma total.

Thanks.


about 100ma per channel (each has it own supply input)

So combined ~ 200ma - I power mine with a single Placid HD-BP right now.
Just to confirm, 100ma + & 100ma -, correct? AND at +-15V?

Yes - both rails will be very near those values at +/- 15V per channel (so 200ma total per rail for both).

https://www.diyaudio.com...g-escape-velocity-2.html

Edited by user Wednesday, February 5, 2020 7:41:47 PM(UTC)  | Reason: Not specified

stewart  
#2 Posted : Wednesday, February 5, 2020 7:43:50 PM(UTC)
stewart

Rank: Advanced Member

Groups: Member
Joined: 11/10/2008(UTC)
Posts: 110
Location: New York City

Thanks: 1 times
Bump. Brian's post here also confused me, suggesting to plan for 5-600ma per rail.


Depending on the DAC output level, and gain used, it is safe to plan for 500-600mA per rail (+/-) to allow for ample headroom.


https://www.diyaudio.com...-escape-velocity-21.html

Edited by user Wednesday, February 5, 2020 8:10:02 PM(UTC)  | Reason: Not specified

Brian Donegan  
#3 Posted : Thursday, February 20, 2020 2:30:59 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,784
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 126 time(s) in 121 post(s)
Originally Posted by: stewart Go to Quoted Post
Bump. Brian's post here also confused me, suggesting to plan for 5-600ma per rail.


Depending on the DAC output level, and gain used, it is safe to plan for 500-600mA per rail (+/-) to allow for ample headroom.


https://www.diyaudio.com...-escape-velocity-21.html


The question I was answering was not related to the use of the Placid. It was for a newly designed power supply for the Mercury. I was suggesting that one should plan for the supply to be able to deliver that much current (much like the Placid can), not that that much would be in use by the Mercury.
stewart  
#4 Posted : Thursday, February 20, 2020 9:25:18 PM(UTC)
stewart

Rank: Advanced Member

Groups: Member
Joined: 11/10/2008(UTC)
Posts: 110
Location: New York City

Thanks: 1 times
Thanks. I am asking because I am going to try another shunt power supply as well for the mercury and would like to plan for about 100ma headroom above peak demand and need to choose a resistor value to set the current limiter. If I'm planning for 500ma per rail, I would go with 600ma, but I'm planning for 200ma per rail based on the other posts, I'd go with 300ma (and would halve these values if going with a dual mono setup).

Edited by user Thursday, February 20, 2020 9:26:01 PM(UTC)  | Reason: Not specified

Rss Feed  Atom Feed
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.