diyAudio (
-   Parts (
-   -   Diamond buffers (

Nordic 12th March 2007 03:10 PM

Diamond buffers
Ok, stupid question time, what exactly is a diamond buffer.

It looks to me at first glance like a way of keeping the power rails balanced like a resistor divider except, it is on the output side?

I can find many pages with PCBs and diffirent diamond buffers, but none of them clearly tell me what the hell I should do with one if I built it, what are the limitations? If it does sit on the output side I would imagine power limits...

Please connect a few dots... I'm a quick study normaly, I promise...

Juergen Knoop 12th March 2007 04:14 PM

I´m curious too!
don´t know exactly what a diamond buffer is, but it maybe referencing to these pushpull-emitter followers,
where two emitter followers, one npn - one pnp, symmetrically drive a AB-pushpull output stage.

kristleifur 12th March 2007 04:28 PM

On page two of this PDF is a schematic of a diamond buffer:

They're pretty popular for headphone amplifiers. Check the and forums for more info.

Nordic 12th March 2007 05:04 PM

Like I said, getting a circuit no problem, but what does it do?

Juergen Knoop 12th March 2007 05:58 PM

it is used to provide more output current to a given voltage source, i.e to "buffer" it.
Think of it as a more elaborate emitter follower.

kristleifur 12th March 2007 06:02 PM

And as I said:


Check the and forums for more info.

hifimaker 13th March 2007 01:58 AM

Do a google search for Jung Diamond buffer. You will find the source documents by Walter Jung.


Juergen Knoop 13th March 2007 02:13 PM

ok, I did it...
But why this is called a diamond buffer?
My textbook refers these circuits as push-pull emitter followers widely used in integrated circuits.

All times are GMT. The time now is 11:51 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 18.75%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio