/members-area/personalblogs/b/michael-kellett-s-blog/posts/a-low-cost-fast-pulse-vi-plotterA low-cost VI PlotterI’m currently working on a project that uses custom made LEDs emitting at an unusual wavelength. One of the most important characteristics is the current against voltage curve. This is hard to measure because the chip is tiny anden-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/michael-kellett-s-blog/posts/a-low-cost-fast-pulse-vi-plotterMon, 19 Jul 2021 20:17:24 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fcde2212-c5b6-4e81-adce-c1931a2f215fneuromodulator1<p>Very interesting project Michael</p><p>I believe Keithley has some LIV systems, but they probably cost an arm and a leg.</p><p>Are you going to implement light measurement to the system?</p><p>Would a log amplifier work here as an alternative to multiple current sense shunts?</p><img src="https://community.element14.com/aggbug?PostID=11572&AppID=323&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/personalblogs/b/michael-kellett-s-blog/posts/a-low-cost-fast-pulse-vi-plotterSun, 11 Jul 2021 22:36:31 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fcde2212-c5b6-4e81-adce-c1931a2f215fshabaz0<p>Hi Michael,</p><p>&nbsp;</p><p>It looks like a very useful project for testing devices for short bursts without allowing them to be damaged too.</p><p>Very interesting seeing the method of keeping the MOSFET just on the edge of conducting, so it switches on sooner!</p><img src="https://community.element14.com/aggbug?PostID=11572&AppID=323&AppType=Weblog&ContentType=0" width="1" height="1">