Articles

2015-12-05

Switching power supply – Step down converter LM2576

I needed power supply (step down converter) for my big project with minimal 2A current and fixed output voltage (3.3V) or adjustable output voltage. I wanted higher efficiency and that’s…

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2015-12-05

Step-down MC34063 – 12-3.3V/500mA

This is next circuit switching converter. This converter reduces the voltage from 12V to 3.3V with very popular DC/DC converter MC34063. The coil was calculated on the 22uA, but the…

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2015-12-05

19 development boards to 30? from manufacturer

The development boards are very popular. I decided to share this list. These boards are interesting, popular and cheap (to 30? – by farnell.com). If you click on the picture,…

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2015-12-05

How to secure linux server

I would like to tell you that I’m not prefessional in security, but i would like to show you article about basic security of linux server. Sources for this article…

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