<div dir="ltr">Is there any reason for sticking with the electronotes design? If the tempcos are only there to compensate for the temperature effect of the transistors, if you do away with the transistor pair altogether theres no reason for them.<div><br></div><div><div>- N<br><div><br></div><div><br></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 12, 2016 at 8:29 AM, Justin Owen <span dir="ltr"><<a href="mailto:juzowen@gmail.com" target="_blank">juzowen@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
The classic Electronotes current source has a linear input. It's possible to chop out some of the exponential parts and just have a linear current source based on that design - however, you lose the two standard Tempco placement positions.<br>
<br>
So - is it possible to temperature compensate a linear-only current source?<br>
<br>
1) Please ignore the component values...<br>
2) I'm assuming the same temperature variation/dependance exists in the linear version...<br>
<br>
<a href="http://www.sdiy.org/juz/source_exp.png" rel="noreferrer" target="_blank">http://www.sdiy.org/juz/<wbr>source_exp.png</a> - exponential<br>
<br>
<a href="http://www.sdiy.org/juz/source_lin.png" rel="noreferrer" target="_blank">http://www.sdiy.org/juz/<wbr>source_lin.png</a> - adapted to linear only<br>
<br>
Thanks,<br>
<br>
/ Justin<br>
<br>
<br>
<br>
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