Electronics Area – Electrical and Electronics Tutorials and Circuits

Welcome to Electronics Area

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

6 Watt Audio Amplifier Circuit with TDA2613 (Hi-Fi)

High fidelity 6 watt audio amplifier circuit with the TDA2613 Integrated Circuit, very easy to implement due to its very few external components

Battery Charge Monitor Circuit with LM3914 IC

This battery charge monitor shows, with colored LEDs, the charging process of a typical 12-volt car battery using the LM3914 Dot / Bar Display Driver.

Audible Continuity Tester

This continuity tester with buzzer works on live circuits. Very important, as common continuity testers are used with the power source disconnected.

Power Supply – Block Diagram (AC – DC conversion process)

Many electronic circuits need a direct current (DC) voltage source, but what we commonly find are voltage sources of alternating current (AC). In order to achieve a direct current voltage source, the alternating current input must follow a conversion process.

Electronic Thermostat Circuit using transistors

This circuit allows us to control the temperature of a room, turning a heating device on and off. Very useful in winter and in very cold places.

Light Operated Relay Circuit using LDR / Photoresistor

The LDR varies its value (ohms) depending on the amount of light that illuminates it. The more light less resistance and less light more resistance, A potentiometer is used to control the light level that activate the relay

Hexadecimal Numbering System

The hexadecimal numbering system (base-16). This numbering system is mainly used to simplify the representation of binary numbers and for the digital handling of colors.

LM350 Adjustable Voltage Regulator (Variable Power Supply)

This variable power supply uses the LM350 adjustable voltage regulator and can deliver 1.25 to 16 volts and a maximum current of 3 amps.

Universal Electric Motor – Construction, Operation, Speed

The universal electric motor is so named because it is the only motor that can be connected to both alternating current and direct current.

9VDC Power Supply using Zener and Transistor

This Power source can be used to power circuits or electronic devices that would normally use a 9 volt battery, saving us the cost of the battery while being used at home.

Astable multivibrator using NAND gates

This astable multivibrator uses two NAND gates of the 4 available on the 7400 TTL integrated circuit. Two LEDs are used to view the status or logic output of each gate.