/technologies/power-management/b/blog/posts/measure-unknown-inductor-value-with-function-generator-and-oscilloscopeThere are affordable switch mode DC converters available.One that you see often is this Benq 12 V to 5V converter. I can find info on all components, except the inductor. And I don&#39;t have an inductance meter.There are several other ways to measure inden-USTelligent Community 12https://community.element14.com/technologies/power-management/b/blog/posts/measure-unknown-inductor-value-with-function-generator-and-oscilloscopeMon, 28 Sep 2020 19:40:07 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8cb5b7cb-9248-402e-b7d6-4d2964e10559three-phase1<p>A great post, very well explained method for determining an inductance value. If I run the details supplied by yourself and Shabaz though the Coil32 program it also agrees with the 68uH value.</p><p>&nbsp;</p><p><span>[View:/resized-image/__size/620x388/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-8cb5b7cb-9248-402e-b7d6-4d2964e10559/0825.contentimage_5F00_192392.png:620:388]</span></p><p>&nbsp;</p><p><a class="jive-link-external-small" href="https://coil32.net/" rel="nofollow ugc noopener" target="_blank">Link to Coil32 program</a></p><p>&nbsp;</p><p>Kind regards</p><img src="https://community.element14.com/aggbug?PostID=9935&AppID=4&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/technologies/power-management/b/blog/posts/measure-unknown-inductor-value-with-function-generator-and-oscilloscopeSun, 27 Sep 2020 21:59:33 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8cb5b7cb-9248-402e-b7d6-4d2964e10559jw07521<p>Hi Jan,</p><p>&nbsp;</p><p>I enjoyed your post and it is very timely as I was just playing with a LM2576 T the other day. I have seen the fixed voltage chips and I wanted to see how well the variable voltage variety worked.</p><p>&nbsp;</p><p><span>[View:/resized-image/__size/620x465/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-8cb5b7cb-9248-402e-b7d6-4d2964e10559/0654.contentimage_5F00_192391.jpg:620:465]</span></p><p>&nbsp;</p><p>Basically what I learned is that they work very well though not on a bread board. My first attempts were flakey and lacked the ability to provide a reasonable current output. When I fortified the power and ground connections things got a lot better. The formula to select resistors to designate output voltage were right on. If one were to build a power supply using the LM2576T on a circuit board the design of the circuit board itself would be a critical factor in the success of the build.</p><p>&nbsp;</p><p>John</p><img src="https://community.element14.com/aggbug?PostID=9935&AppID=4&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/technologies/power-management/b/blog/posts/measure-unknown-inductor-value-with-function-generator-and-oscilloscopeSun, 27 Sep 2020 18:52:34 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8cb5b7cb-9248-402e-b7d6-4d2964e10559DAB0<p>Very good post Jan.</p><p>&nbsp;</p><p>DAB</p><img src="https://community.element14.com/aggbug?PostID=9935&AppID=4&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/technologies/power-management/b/blog/posts/measure-unknown-inductor-value-with-function-generator-and-oscilloscopeSun, 27 Sep 2020 18:21:26 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8cb5b7cb-9248-402e-b7d6-4d2964e10559balearicdynamics0<p>Great!</p><img src="https://community.element14.com/aggbug?PostID=9935&AppID=4&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/technologies/power-management/b/blog/posts/measure-unknown-inductor-value-with-function-generator-and-oscilloscopeSun, 27 Sep 2020 16:31:38 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8cb5b7cb-9248-402e-b7d6-4d2964e10559Jan Cumps1<p>I&#39;ll be able to validate this later this week. I ordered an LRC meter.</p><img src="https://community.element14.com/aggbug?PostID=9935&AppID=4&AppType=Weblog&ContentType=0" width="1" height="1">