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Jsr03 minimum load ?

Started by galouche, August 09, 2007, 10:18:13 PM

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galouche

 

Hi,

  I've seen on a french board that to work corectly, a minimum load of 200 mA is required ? I was hoping to use it for a clock ( 10 mA ) ...

  If it's true I'll have to put a resistor in // ...  :-)

peranders

The external minimum current is zero. You have already a load through the opamp, the reference and the feedback network.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

galouche

Thanks for the response, I'll ask him where he've read this  :-)

galouche

He've answered me, here's the link :

and the sentence :http://tangentsoft.net/elec/opamp-linreg.html

QuoteThe D44H11's minimum hFE is 60, so the minimum current from this configuration is about 330mA

The BD139 is a little bit less.

peranders

#4
The meaning of this is load current and you can take out at least 330 mA.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

galouche

thanks a lot for your response and your patience  :wink: