/learn/learning-center/stem-academy/b/blog/posts/ti-pmlk-buck-experiment-board---part-1b-1st-experiment-lab-setupI am a Road Tester of the TI-PMLK Buck Experiment Board: TPS54160 &amp; LM3475 .It&#39;s an educational kit - board and book - to learn buck converter theory and practice.Because it&#39;s an educational kit, I give minus points each time there&#39;s vendor lock-i...en-USTelligent Community 12https://community.element14.com/learn/learning-center/stem-academy/b/blog/posts/ti-pmlk-buck-experiment-board---part-1b-1st-experiment-lab-setupSat, 24 Jun 2017 19:13:39 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8dbb8b58-995b-4b35-8b08-16b88b5c3fa0DAB1<p>Great post Jan.</p><p>&nbsp;</p><p>Yes, without an in circuit current probe, you are stuck pulling off voltage measurements and estimating the current flow.</p><p>&nbsp;</p><p>DAB</p><img src="https://community.element14.com/aggbug?PostID=3235&AppID=134&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/learn/learning-center/stem-academy/b/blog/posts/ti-pmlk-buck-experiment-board---part-1b-1st-experiment-lab-setupSat, 24 Jun 2017 13:49:30 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8dbb8b58-995b-4b35-8b08-16b88b5c3fa0balearicdynamics1<p>Hi Jan, my compliments! Very well documented experiment. This is perfect as STEM.</p><p>I have an ignorant question. In the scheme both two input and output current multimeters have only the current signal connected and not the ground (or negative). Can you explain this detail please?</p><p>&nbsp;</p><p>Enrico</p><img src="https://community.element14.com/aggbug?PostID=3235&AppID=134&AppType=Weblog&ContentType=0" width="1" height="1">