> Articles by: Eugen Mihailescu
How to build a power supply for DDS Function Signal Generator module After building a DDS function signal generator I found out that, in order to power it on, it requires three different input DC voltages: 12V, -12V and 5V.…
One of the most popular Integrated Circuit (IC) is the so called 555 Timer IC which was introduced in 1972 by a company called Signetics (aquired 4 years later by Philips). The 555 timer IC is an integrated circuit (chip)…
One important category in electronics is the Semiconductors. In the following we are going to talk about semiconductors, more exactly about four of them which you would most likely find in any electrical device nowadays: Diode BJT (the Bipolar Junction…
Few years ago I modified a salvaged ATX power supply to a fixed voltage bench power supply. It was very useful, I still use it, however it comes a time when you need other voltages than some fixed voltages (eg.…
While learning about diodes I came across of a very interesting type of diodes, the Zener diode. Here is what I've learned about it. What is a Zener diode Normally a diode is made to conduct current in its forward…
One important part of electronics is converting the alternate current (AC) - the form of current delivered to our homes and offices - into a useful direct current (DC). Although I am just a newbie in this field, rather a…
After installing the rear fog light on my Nissan Murano 2009 (USA model) I thought it would worth sharing my experience with you. First I should mention that my car had already installed the OEM front fog lights so I…
Continuing my last post on how I fixed a faulty AFC trailer converter I thought it might be useful sharing my thoughts about how I built a trailer light tester for one buck or less. So this is rather a…
In case you are willing to wire yourself the trailer to your car and you notice that your trailer AFC converter turn signals blink together you should at first follow the steps mentioned here. But what if the problem is…
In case you have a Windows system that runs in an isolated secure environment (eg: at home) where there is no point of having to logon manually into the system using an user and a password (eg. you are home…