Reflektor-D builds

[Salas]

Only for the initial test, unless the test feed comes from a bench supply that you can set a current limit. Though you can still fuse the incoming DC line for extra peace of mind during service life. But the transformer primary is necessary to fuse. What about the temps at such high current level that you use? On board sinks holding enough? Mike sent you the 5cm tall ones, right?

 

[merlin el mago]

The heat sinks are from my stash, isn't any problem of temps, I touched the heat sinks and isn't extra hot.

 

[Salas]

How tall are your sinks?

 

[merlin el mago]

5cm.

 

[Salas]

OK, all departments doing well.

 

[merlin el mago]

Thanks for your interest.

 

[nezbleu]

I ordered these boards with no particular plan in mind, I really just wanted a pair to stash away for a rainy day. However, I think I just bought a Logitech Squeezebox Duet, so I may have a winter project looming.

 

[didiet78]

Salas, have you comparing Subbu DAC V3 with original PSU (JP PSU) with Reflector-D ?

 

[Salas]

No

 

[randytsuch]

So I am considering using a reflektor to power an oscillator.

Can the reflektor provide about 2VDC? The oscillator will run down to 1.7V, and I can go up to 2V, maybe a little higher but would prefer not to go over 2.

TIA
Randy

 

[Salas]

So I am considering using a reflektor to power an oscillator.

Can the reflektor provide about 2VDC? The oscillator will run down to 1.7V, and I can go up to 2V, maybe a little higher but would prefer not to go over 2.

TIA
Randy

No. Only down to 3.3V if you want its current mirror surely in spec. Talking the Ref-D not some p2p tweaked Reflektor with pull ups. You can use a low impedance voltage divider on its output though. Divides the noise too. In some apps low Zo its not the priority. Only wide flat Zo and low 1/F.

 

[randytsuch]

No. Only down to 3.3V if you want its current mirror surely in spec. Talking the Ref-D not some p2p tweaked Reflektor with pull ups. You can use a low impedance voltage divider on its output though. Divides the noise too. In some apps low Zo its not the priority. Only wide flat Zo and low 1/F.

OK, I was asking about the PWB version, I have a couple of them to play with.

So I may still try it with a voltage divider, or I may go a different route now.

Thanks
Randy

 

[Salas]

Better use them for general PSU at 5V and tap off to some super low noise LDO chip dedicated next to the osc.

 

[randytsuch]

Better use them for general PSU at 5V and tap off to some super low noise LDO chip dedicated next to the osc.

That's what I was thinking about. Looking at some little Linear Tech linear regs. Just bought a SOT23 adapter, and figured I could put the reg right next to the oscillator with a few sm caps for decoupling.

Thanks
Randy

 

[dimkasta]

Would it be realistic to consider pushing it to 8V@1A for the shigaclone motor psu? Heatsink size is not an issue

 

[Salas]

I had replied how, there: http://www.diyaudio.com/forums/powe...-voltage-shunt-regulator-654.html#post3975287

 

[merlin el mago]

R-D sounds better without k-m

 

[Salas]

Ref-D is very self contained so it could sound comparable with or without prior C-mult filtering. If that is what you mean.

 

[merlin el mago]

No, sounds better without the same k-mult used in your BiB.

 

[Salas]

Less circuitry for same or better result is a good thing.