/members-area/b/blog/posts/power-supply-dynamic-load-testingFollowing on from earlier discussions I thought I&#39;d take a look at how easy (or not) it is to use a big MOSFET in a simple set up to switch a 5A load to test power supply transient response: I used an STW60N10 MOSFET, a 3.3R load resistor, 4...en-USTelligent Community 12https://community.element14.com/members-area/b/blog/posts/power-supply-dynamic-load-testingSun, 07 Jun 2015 13:22:43 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a2212f49-0dc2-4726-8221-48255a24ce42D_Hersey0<p>The co-fired MLCCs meant to replace tants work really well.&nbsp; Their existence slipped my mind the other day.&nbsp; Really good of the industry to try to replace tants.&nbsp; Frankly, I was distracted, been working on an involved project.&nbsp; Good luck and keep us posted. </p><img src="https://community.element14.com/aggbug?PostID=21008&AppID=75&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/b/blog/posts/power-supply-dynamic-load-testingSat, 06 Jun 2015 19:08:16 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a2212f49-0dc2-4726-8221-48255a24ce42D_Hersey1<p>Hi, MK.&nbsp; Perhaps the ringing could be moderated somewhat if you bypassed your bypass capacitor with something smaller and faster, a tantalum* perhaps.&nbsp; If that doesn&#39;t help, it will ring in a more complex way at least.&nbsp; I doubt it would help much, but bringing the filter cap electrically closer might be of benefit.&nbsp; Solder braid is lower Z at higher frequencies than wire.&nbsp; </p><p>&nbsp;</p><p>*Obtained from a conscious supplier, of course.</p><p>&nbsp;</p><p>&nbsp;</p><p>--Nice work, BTW.</p><img src="https://community.element14.com/aggbug?PostID=21008&AppID=75&AppType=Weblog&ContentType=0" width="1" height="1">