Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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How to build a NAND Gate with Transistors & Diodes?
This circuit simulates the operation of a NAND gate with two or more inputs. (There is one diode for each input. D1, D2, …)
Full wave rectifier using center tapped transformer
Full wave rectifier using center tapped transformer
This full wave rectifier requires a center tapped transformer. This additional end on the secondary winding of the transformer divides the voltage in this winding into two equal voltages. This additional end is grounded.
Guitar Synthesizer using CD4046
Guitar Synthesizer using CD4046. To achieve the objective, the CMOS PLL CD4046 integrated circuit is used, producing an unusual sound from a guitar which sounds very similar to a synthesizer.
Half Wave Voltage Doubler
Half Wave Voltage Doubler
Voltage doublers produce twice as much DC voltage as a common rectifier could produce. The advantage of the Half Wave voltage doubler is that it has a line, which is common to the input and output
Event Sequencer Using the 555 Timer
This event sequencing circuit uses several 555 timer to control an event sequence, where an event does not start if the previous event has not ended.
Heat control using thermistor and TRIAC
This circuit is designed to control the temperature of a room, either by using a heat source, such as an electric oven heater, or by using a fan or other cooling device.
Pulse generator using NAND gate
Pulse generator using NAND gate. This circuit can be used as a clock for other circuits. The circuit’s main element is a 2 input (Schmitt Trigger) NAND gate
Types of Cells / Batteries
Types of cells / batteries. Primary batteries (non-rechargeable): Dry, mercury, alkaline. Secondary batteries (rechargeable): Nickel-Cadmium Alkaline, Lead
How does a battery work?
The electric current is a flow of electrons that flow through a conductor cable. Electrons are negatively charged, and like two magnets that we want to put together, negative side with negative side or positive side with positive side, they repel.
Step Response of RL Circuits
When a constant voltage is suddenly applied to an RL circuit, an increasing a current goes through the conductor and creates a magnetic field that expands with the increasing current
Inductor in DC and AC. Quality factor
Inductor in direct current (DC) and alternating current (AC). Phase angle of the alternating current in an Inductor, The quality factor (Q)
Electricity and structure of matter
The matter is divided into molecules, which in turn are divided into atoms. These atoms are composed of two parts: nucleus and periphery.