/members-area/personalblogs/b/blog/posts/transistors-saturation-part-2-and-inverse-modeThis is another exploratory blog relating to bipolar junction transistors (BJTs). It follows on from a previous blog whichcan be found here Transistors: Saturation Be aware that I&#39;m not an expert in all this: I&#39;m studying it and you&#39;re looking o...en-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/transistors-saturation-part-2-and-inverse-modeTue, 12 Feb 2019 15:01:35 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0b743c59-def5-4f21-a4e8-ea12af376b7cJan Cumps0<blockquote class="jive-quote"><p>[I can see myself automating this at some point with processor-controlled voltage and current sources]</p></blockquote><p>The DAC / ADC board that we made could be used to deliver the voltages (positive only though).</p><p>Peter Oakes&#39; GUI (or any program that can shoot SCPI commands to a COM port) and the default firmware for the eload support this.</p><p>There are low level ADC and DAC commands.</p><p>note: Currently that firmware is not polling ADC 4 because it&#39;s not used in the design.</p><p>You&#39;d have to change this define to 4 to get ADC 4 polled too:</p><p>&nbsp;</p><p>[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=c_cpp&amp;text=%2F%2F+adc+4+is+not+used.+Sample+3+channels%0A%23define+ADC_ACTIVE_INPUTS+3]</p><div></div><p>&nbsp;</p><p>&nbsp;</p><p>(in adc_impl.c. recompilation is needed).</p><img src="https://community.element14.com/aggbug?PostID=6493&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">