
Ammeter
We saw in our last tutorial that a permanent magnet moving-coil (PMMC) galvanometer is a type of instrument in which a current carrying coil is
We saw in our last tutorial that a permanent magnet moving-coil (PMMC) galvanometer is a type of instrument in which a current carrying coil is
When analysing the operation of electrical and electronic circuits, or trying to understand why a circuit does not work as expected, eventually you will need
Nearly all electronic devices and circuits require some form of a DC power source for their operation either from a battery, solar cell or as
The advantage of relays is that it takes a relatively small amount of power to operate the relay coil, but the relay itself can be
The emission of these photons occurs when the diode junction is forward biased by an external voltage allowing current to flow across its junction, and
There are many circuits and kits on the market that can flash any number of lights periodically, randomly or sequentially but one very versatile IC
The Wheatstone Bridge diamond shaped circuit who’s concept was developed by Charles Wheatstone can be used to accurately measure unknown resistance values, or as a means of
The I-V Characteristic Curves, which is short for Current-Voltage Characteristic Curves or simply I-V curves of an electrical device or component, are a set of graphical curves which are used
We know from our tutorials about Transformers that they can not only provide a step-down (or step-up) voltage, but they also provide “electrical isolation” between
Continuing on from our tutorial about converting an ATX PSU to a bench power supply, one very good addition to this is the LM317T positive
In the tutorial about Rectifiers, we saw that the DC output voltage being controlled by the rectifier is at a value below that of the mains
But before we start looking at the in’s and out’s of pulse width modulation we need to understand a little more about how a DC