[sdiy] Peak Detector

[Scott Gravenhorst]

LEDs in parallel without separate current sharing resistors will likely
result in only one LED lighting.    I see that one is green, the other is
red.  If these are meant to indicate opposite polarity, then one of these
LEDs is not correctly oriented in the drawing.  


=?ISO-8859-1?Q?Fr=E9d=E9ric_Piron?= <frederic.piron at cota.be> wrote:
>
>Here's a schematic for what you need.
>(Based on thomas henry design.)
>
>
>http://www.xpmtl.net/terencehacker/diy/peak_indicator.jpg
>
>cheers,
>
>Fred
>
>
>
>Le 2 avr. 04, à 16:11, David Reichert a écrit :
>
>>
>> Hi everyone,
>>
>> I was wanting to build a peak detector circuit to indicate when a 
>> signal
>> goes above 5Vp-p. Just one of those single LED indicator types.
>>
>> Seems to me the simplest thing to do would be to use a comparator which
>> sets off a 555-timer monostable.
>>
>> Are there better ways of doing it or does anyone have a circuit handy
>> for this?
>>
>> Thanks,
>> Dave
>>
>>
>>
>>
>
>

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