Power Supplies

If it involves Power Supplies then it’s here.

EEVblog #1030 – $20 DIY Bench Power Supply!

Dave takes a quick look at the spectacularly cheap $20 DPS series CC/CV modules from RD Tech. How to make a 30V 3A bench power supply with 1mA resolution constant current limiting and multi function display using a junk bin enclosure and a junked plugpack or old computer power supply. ...

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EEVblog #957 – How To Measure DC-DC Converter Efficiency

Dave shows you how to setup, measure and generate an Efficiency vs Load Current characteristic curve for a DC-DC converter, just like you see in the datasheets. Several traps for young players are discussed, along with plotting Logarithmic axis charts in a spreadsheet. Electronic Load Kit BM235 Multimeter: http://amzn.to/2hJp78T Rigol ...

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EEVblog #895 – BEC Pro Model Airplane Regulator Testing

Dave tests the Castle Creations CC BEC Pro battery eliminator used in model airplanes to see if it meets is rated continuous current performance claims. Also a bit of a how-to on testing regulators like this, 4 terminal load sensing error reduction is demonstrated. Airflow and thermal camera measuremements are ...

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