https://stream.echo6.co/videos/watch/e5b7d550-d165-4a99-a5a4-51be1ceb689b Characterising the performance and efficiency of the $25 DPS3003 30V 3A lab power supply module from RDtech. Includes a how-to on measuring DC-DC converter efficiency graphs, with module power loss on the secondary Y axis. https://www.aliexpress.com/store/product/RD-DPS3003-Constant-Voltage-current-Step-down-Programmable-Power-Supply-module-buck-Voltage-converter-color-LCD/923042_32685187020.html XL7005 datasheet: http://www.xlsemi.com/datasheet/XL7005A%20datasheet-English.pdf Previous video on the DPS3003 & other PSU Modules https://www.youtube.com/watch?v=Cw2AjcczHg4 Forum: http://www.eevblog.com/forum/blog/eevblog-1031-$25-dps3003-psu-module-characterisation/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 T-Shirts: http://teespring.com/stores/eevblog 💗 Likecoin – Coins for Likes: https://likecoin.pro/@eevblog/dil9/hcq3 Thu, 07 May 2026 05:30:13 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/e5b7d550-d165-4a99-a5a4-51be1ceb689b All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.