Aleph 5 Power Supply

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Hello Scribble,

The 1 KVA transformer that you have would be fine for Aleph 5 stereo.

Also, the 600 VA would be enough for the stereo Aleph 5, agree
by Mad_K, and I would not use the transformer of lower rating
than this.

I tried to use even 450 VA for stereo, and it worked ok,
but buzzed a bit and become very warm after awhile.

Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip
 
Hello Kristijan,

-> Will 1/2W resistors be enough for the Aleph - 5 power supply or do I needd to go for a higher value? I am referring to your design available at: PASS LABS CLONE - Aleph-5 PS-X2 Amplifier Power Supply PCB

-> What is the main purpose of using coils in the supply. Original Aleph - 5 supply design is missing this element. Can I use the below inductor?

http://www.mouser.in/ProductDetail/...ZZMsg%2by3WlYCkU%2bOjBV8qV5%2bXCC%2bXt6FmjJ8=

---
Best regards,
BP

Hello Scribble,

The 1 KVA transformer that you have would be fine for Aleph 5 stereo.

Also, the 600 VA would be enough for the stereo Aleph 5, agree
by Mad_K, and I would not use the transformer of lower rating
than this.

I tried to use even 450 VA for stereo, and it worked ok,
but buzzed a bit and become very warm after awhile.

Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip
 
Hello binspaul,

Inductors store energy, filter noise and smooth that pulsating DC. All inductors have a resistance value and all resistors have an inductance value. Where is the most practical point? I tried the parallel resistors and then inductors in a F5 amplifier. My hearing is certainly imperfect. My frugality affects my opinion. I feel the cost of inductors is not warranted. Try PSU Designer 2 at PSUD2. Model both types yourself.

The Murata inductor of your example is rated for 300 ma or 0.3 amp. May I suggest you look for inductors rated for 20 amps at minimum. An example: https//www.madisoundspeakerstore.com/steel-laminate-15-awg/steel-laminate-2.25-mh-15-awg-inductors/. I would actually prefer 12 awg but I can find none. You might ask a local electrical motor repair shop if they could wind you coils of this value. If you have an inductance meter, magnet wire and some ferrite material you could possibly make them yourself. Such coils without the ferrite core are very, very large.

Best wishes sir.
 
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