<?xml-stylesheet type="text/xsl" href="https://community.element14.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Op-Amp Based Adjustable Load</title><link>/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><description>Op-Amp Based Adjustable Load

Table of Contents

 1. Introduction 
 2. How it works 
 3. Plan 
 4. Build 

 User interface 
 Electronics 
 Final setup test 


 5. Code 
 6. Finished look 
 7. Testing 

 Bench PSU test 
 LiPo cell test 
 Buck converter</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Thu, 30 Jan 2025 18:21:43 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>dougw</dc:creator><slash:comments>0</slash:comments><description>&lt;p&gt;Perhaps the current is off because the resistor changes its resistance as it heats up?&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Tue, 03 May 2022 14:42:14 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>scottiebabe</dc:creator><slash:comments>2</slash:comments><description>[deleted]&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Tue, 03 May 2022 04:13:42 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>dougw</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;Very nice build. Inspiring - I might even have enough components to build one - it is now finding a place on my bucket list.&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Mon, 02 May 2022 18:16:11 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>shabaz</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;Really nicely laid out prototyping.. looks good inside and out!&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Mon, 02 May 2022 18:05:41 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>Andrew J</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;Great project, well described.&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Mon, 02 May 2022 15:33:26 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>genebren</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;Great project!&amp;nbsp; This will be a useful tool for your workbench.&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Op-Amp Based Adjustable Load</title><link>https://community.element14.com/challenges-projects/project14/opampapalooza/b/blog/posts/op-amp-based-adjustable-load</link><pubDate>Mon, 02 May 2022 14:21:46 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:dd6a7a0f-47bf-48b8-ad7c-f4141c212797</guid><dc:creator>dang74</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;Awesome project.&amp;nbsp; The carrier board for the Arduino is wired nice and neat, and the finished box looks amazing.&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=23532&amp;AppID=365&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item></channel></rss>