Re: Led Regulation

Here's a circuit (attached) for a superregen FM reciever that uses the
TL431 as an audio amp.

Regards,

Joe


Original Message:
-----------------
From: Dr Skip drskip@...
Date: Fri, 18 Jul 2008 12:07:53 -0400
To: piclist@...
Subject: Re: [EE] Led "Regulation"


Got a circuit? While I can understand the principal of the thing, I'm
having
trouble getting my mind around more creative uses for it... :(

Joe Bento wrote:
> The advantage is the voltage can be set from about 2 - 36 volts.  The
> datasheet calls it programmable, yet the voltage is set by a resistive
> voltage divider not unlike linear 3-terminal regulators.  These little
> beasties actually make a nifty audio amp as well, directly driving an 8
> ohm speaker or headset.
>
> Joe
>
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