EEVblog #1031 - $25 DPS3003 PSU Module Characterisation

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

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