Power Supplies Tutorials. PS Tutorials

Power Supplies Tutorials

What is a power supply?

A power supply is an electronic device that converts alternating current (AC) voltage from the electrical grid (120/240 volts) into direct current (DC) voltage, such as 5, 9, or 12 volts. These power supplies can be classified as linear or switched-mode.

Linear power supplies are the simplest and consist of a transformer, a rectification stage, filtering, and regulation. Their disadvantages are low efficiency and their larger size.
Switched-mode power supplies are more complex in the process of converting AC voltage to DC voltage. Their advantages are their smaller size and higher efficiency.

Linear power supplies can also be divided into the following:

Regulated power supplies, which are designed to maintain a virtually constant output voltage even if the input voltage changes or the load varies. These are typical 12-volt and 5-volt power supplies.
Unregulated power supplies. These are simpler, and their output voltage can vary if the input voltage changes or if the connected load varies. They are generally older power supplies.

Below is a list of 11 tutorials on power supplies.

List of tutorials on Power Supplies

Transformerless Power Supply Circuit

Transformerless power supply. This circuit is designed to connect to a specific circuit because it can only provide a maximum and minimum current.

Zener diode Voltage regulator Circuit Design

Zener Diode Voltage Regulator Circuit Design. Design method. Determination of the voltage and power of the Zener diode and of the limiting resistor Rs.

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?

Electric batteries, by means of a chemical reaction, produce the following: At its negative terminal, there are a lot of electrons (negatively charged), and at its positive terminal, there is a lack of electrons (negatively charged).

Internal Resistance of a Voltage Source. What is it?

Voltage sources, whether batteries, generators, etc., are not ideal (perfect). A real voltage source is composed of an ideal voltage source in series with a resistance called internal resistance.

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.