Practical mosfet tutorial #5 – microcontroller interfacing
For this tutorial to be truly practical, we need to interface the MOSFET to a microcontroller. Here, soultions are provided…
Practical mosfet tutorial #4 – n channel, high side and bootstrapping
Can you have an N channel MOSFET in the high side of the circuit. Yes, but there are issues!
Arduino usb-to-serial tutorial – programming the pro mini
Here I attempt to use 3 different USB to Serial modules to program a clone Arduino Pro Mini. The chips…
Arduino thrift tutorial – introduction to cheap chinese clones
An Arduino for £2.50? Not the genuine article of course, but a cheap Chinese clone selling on eBay. Here I…
Review: 3a 40v digital buck dc/dc converter – it’s more like a bench psu!
This digitally controlled buck converter is so stacked with features, it's more like a miniature bench power supply. Input: 5V…
Practical mosfet tutorial #3 – p channel and the mobility of holes
P Channel MOSFETs neatly solve the problem of not wanting to break up the common ground line. But they have…
Practical mosfet tutorial #2 – n channel, low side and the body diode
N Channel MOSFETs need a high gate voltage to switch them on.
Practical mosfet tutorial #1 – introduction and scope
A practical look at MOSFETs and how to use them
Review: sepic buck boost dc/dc converter – steps voltage up or down
The basic buck boost topology produces an inverted output, but SEPIC (Single-Ended Primary-Inductor Converter) solves that problem maintaining polarity through…
Crazy high speed 12v 300ma fans to cool 100w led
Found these bonkers fast fans on a power supply which was about to hit the skip. 12 Volts, 3.6 Watts.…