Voltlog #187 – InTheMail

In this video I am showing: Shoe Insoles Heaters, DC-DC Converter Module MP1584 3A 28V Input, Matek Power Distribution Board 5V 12V, Digital Tachometer Non-Contact, Pedal switch, 10W Qi Wireless Charging Pad, Baseus Wireless Charging Car mount, Air Mouse Wireless Remote, Air Mouse Wireless Remote, Amtech NC-559 Flux (fake).

Thank you for watching, that was all for today, let me know in the comments section if you found something interesting, send me some feedback by clicking the thumbs up or thumbs down button on the video and i will see you next week.

Voltlog #182 – InTheMail

Hello everyone and welcome to a new InTheMail the series that will touch both your passion for electronics and your bank account at the same time.


Voltlog #131 – Measuring The Efficiency Of The Ruideng Kis3r33S DC-DC Converter

You might remember this small module from the previous InTheMail, this is the Ruideng dc-dc converter with a claimed efficiency of 95%. Now a figure of 95% efficiency is not unheard of these days, many dc-dc converters can achieve this with proper circuit design.

This particular model uses the MP2307 converter chip manufactured by Monolithic Power and if we take a look at their datasheet we can immediately see where they got the 95% efficiency figure they advertise.

If you own fancy equipment like a source/measure unit than one instrument can do all the measurements and data log the results as well but a source/measure is out of our budget so we will be using multimeters for this test.

Here are links where you can find the equipment used in this video: