The Junction Field Effect Transistors (JFET)

2 years ago

The bipolar transistor has several disadvantages: it has low input impedance because of forward biased emitter junction, it has small…

Bipolar Junction Transistors (BJT)

2 years ago

By placing two PN junctions together we can create a bipolar junction transistor. In a PNP transistor the majority charger…

Multiplexers and Demultiplexers in Digital Circuits  

2 years ago

Multiplexers and demultiplexers are devices that route signals. A multiplexer also called a data selector takes one of several inputs…

Basic Features of Power Semiconductor Controlled Drives

2 years ago

Power electronics deals with the applications of solid state electronics for the control and conversion of electric power. The conversion…

How to calibrate a dc voltmeter

2 years ago

An instrument may be calibrated by comparing its reading with that of a more accurate instrument when both are measuring…

How to calibrate a dc ammeter

2 years ago

The figure below shows two dc ammeters connected in series, so that they are both measuring the same current. Figure: …

What are PLC-Based Water Treatment Plants?

2 years ago

Most of the water treatment plants in the previous decade were manually operated. However, they were automated to a certain…

Analog Proportional Controller

2 years ago

An analog controller typically employs op-amps to provide the necessary gain and signal processing. Let’s consider the flow control system…

Tuned Amplifier Applications

2 years ago

A tuned amplifier operates over a band of frequencies centered on a resonant frequency. Its two main requirements are to…

Power System Protection

2 years ago

Electrical equipment has to be designed and constructed in such a way as to withstand the foreseeable loading during its…