Reflektor-D builds

Jump to Latest
#181
nautibuoy said:
A question about the best way to hook up a Reflektor supply if I may...

I'll be using a Reflektor to power an Acko SO3 digital clock/isolator board, which has three power supply connectors (for separate onboard power supplies).

I could;

  1. run separate wires (including sensing) between the Reflektor and each of the SO3 power supply connectors.
  2. run wires (including sensing) to one of the SO3 power supply connectors and then daisy chain just the power supply wires to the other SO3 connectors.
  3. run separate wires (including sensing) to a point close to the SO3 and then split out power supply wires to the SO3 connectors.
  4. connect the sensing at the Reflector and run power supply wires to each SO3 connector.
Does it matter that much with the SO3's onboard power supplies anyway?

Thanks

Ray
Click to expand...
Keep the Ref-D near enough to it and do #4. Its a specific piece of hardware, you will only know if it matters to you after listening between #3 and #4. If the on board PSUs don't draw constant current then there is still play on the connection runs to their mother PSU (wiring + traces). How insensitive the on board ones are to that remains an open tiny itchy question.
 
#183
Hello all!

I have DAC LKS Dual ES9018 MH-DA-002. It has the analog output section with specially designed all-discrete parallel power (150mAX2 full discrete Class A parallel power circuit, the current source + amplifier + Wallman mirror circuit Billiton frequency). What shunt regulator will be better for this:
1) BIB SSLV1.1 IRF+
2) Reflektor-D
?
Salas wrote on previous pages that BIB has more dynamic on analogue http://www.diyaudio.com/forums/power-supplies/261031-reflektor-d-builds-17.html#post4093703 . So what regulator will be better for output stage?
 
#186
Salas said:
BIB for its analogue section, Ref-D for its digital section.
Click to expand...

so for output the BIB regulator will be the best. But how about AVCC lines of digital chip ES9018. There was one test between:
1) LT1086-5 considered a very good series regulator for audio
2) A very low noise shunt with no op-amp similar to Salas design (1.0 version)
3) Tent Labs shunt
Choice 3 was the best (dual opamp shunt). So what will be best for analog lines of ES9018 chip - BIB or Reflektor-D?
 
#189
I have compared on my AD1865 DAC. Reflektor D is clearly better than BiB for +/- 5V analog supply in my option. Salas thank you for so nice regulator 🙂
 

Attachments

  • Salas reflektor D AD1865.jpg
    Salas reflektor D AD1865.jpg
    145.2 KB · Views: 728
#192
Stacked. To be completely the same semis, not N MOSFET near versions, plus it creates a floating virtual earth point away from the rest of system groundings. Takes separate secondaries and two bridges.
 
#196
freebee said:
Hi Nautibuoy,

I'm trying to figure out how to get around 5.25Vout, 350MA CCS current for my Buffalo II DAC. Which configuration did you go for? Could you share a photo of the board, please?

Kind regards,
Sonnyboy
Click to expand...

Hi Sonnyboy, the values I used are detailed here;

http://www.diyaudio.com/forums/power-supplies/261031-reflektor-d-builds-16.html#post4092917

I don't have any pictures to hand but I'll see what I can do, though you shouldn't need them to build the regulators as Salas's build guide is comprehensive.

Ray
 
#198
freebee said:
Thanks Ray. I was wondering where you put the 56 Ohm resistor. Is guess you put it in the RX/J/D slot?

Orson (AKA Sonnyboy)
Click to expand...

Yes, across RX/J/D - you can see this position with a wire link in the picture on page 1 of the build guide, just substitute the resistor for the link.

I suggest that, before finalising your Reflektor build, you install the resistor temporarily and test/measure using a dummy load (as per the build guide) to ensure correct operation and output voltage.

Ray
 
#200
Reflector D LEDS won't fire up

Help! Checked all part values but LEDs won't fire up. As far as I know the LEDs are in the right position, according to the manual. Have taken some pics, perhaps someone has an idea? Thanks! :lifesavr
 

Attachments

  • image.jpg
    image.jpg
    471.3 KB · Views: 730
You must log in or register to reply here.
Top Bottom