Electronics Area – Electrical and Electronics Tutorials and Circuits

 

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Electrical and Electronics Tutorials and Circuits


Digital Electronics

Semiconductors

Operational Amplifiers

Circuit diagrams & Projects

Transformers

Resistors

Capacitors

Inductors

Electronic Filters

Power Supplies

Electricity and Magnetism Basics

Instruments & Measurements


Recent posts

Automatic night light circuit with one LED (PCB)

This automatic night light circuit with a LED is simple, interesting and very easy to do. The circuit allows a better understanding of the operation of a phototransistor and thus be able to use it in other applications. (PCB)

NOR Gate – The Universal Gate

The NOR Logic gate – Truth Table, equivalent circuit. It can be implemented with the concatenation of an OR gate and a NOT gate.

555 Timer Tester circuit

This 555 IC tester circuit, allows us to make sure that this integrated circuit works properly. This same test can be achieved by operating the 555 as astable multivibrator, but this test does not allow observing its operation in detail.

Capacitor and the Alternating Current

Capacitor and the Alternating Current. Unlike the behavior of a capacitor in direct current (DC), in the alternating current (AC) the current passes more easily through a capacitor.

Audible Logic Probe using the 555 Timer

Many logic probes use LEDs to visually indicate the logic state of the point under test. This causes the user to have to see the point under test and the LED at the same time.

What is a Logic Probe?

A logic probe is a simple and inexpensive instrument contained within a pen-like tube. It has 3 LED indicators that show the status of the point under test. 5 DIY Logic Probes

Ideal Transformer Working Principle

Ideal transformer working principle. How the transformer works. Voltage & current transformation ratio. Power ratio between primary & secondary windings