DIY Linear PSU

obee

花左一個月, 但左呢個Power Supply Unit (PSU), 旨在減少家中火牛仔數量同改善音響質素.

obee

The linear PSU just integrate the AMB sigma11:
http://www.amb.org/audio/sigma11/

AMB has several DIY projects and bare PCB and some components are available for sale too:
http://www.amb.org/audio/

obee

1st version (left to right)
1. USB port output (5V)
2. SOtM + SBT + Fiber converters (connected by relay)
3. Media player (12V + 5V, connected by relay)
4. Modem + Wifi router (12V)

obee

Power supply:

obee

Second version:

obee

Back view (use different pins sockets to avoid mistake in connection)

obee

Third version

澳門客

的確幾好構思，統一把所有小牛代電器用隻大牛加幾路輸出解決牛多插多等問題

agnes_b

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小弟真萬分佩服
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obee

agnes_b 發表於 2012-9-24 22:47
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小弟真萬分佩服
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Thanks!

kuromitms

cvincent

好正, 我都想整番個比d 機頂盒, harddisk .....用

obee

cvincent 發表於 2012-9-26 07:32
好正, 我都想整番個比d 機頂盒, harddisk .....用

如果俾機頂盒同hard disk用, 用120VA 15V AC (有8A), 做個 LM317 (上taobao有成件) 的可以了.
箱taobao都有, 但線要自己攪了.

CKKeung

obee 發表於 2012-9-24 19:58
Third version, changes:
-Removed LT1086CT-5, use AMB 5V for all 5V outputs
-Added 2nd TeddySuperRe ...

obee hing,

Very very nice DIY!


If my friends wnat to do the same project, may I pm you for advice?
Many thanks in advance!

obee

CKKeung 發表於 2012-9-27 09:30
obee hing,

Very very nice DIY!

stevenyu2000

Very Nice DIY

alamakazam

sigma11 whats the maximum power ?

obee

alamakazam 發表於 2012-12-19 07:50
sigma11 whats the maximum power ?

I connects 120VA for 12V output and tried full load.
120VA with 15V AC means 8A
So, max current so far is 8A. That's also the max. current that of my transformer can output.

bluetooth

正，很好的構思