This document summarizes the key components and operation of a practical power supply with a fixed 5V DC output voltage. It describes the use of a transformer to raise or lower voltages, a bridge rectifier for converting AC to DC, a smoothing capacitor to reduce voltage fluctuations, and a voltage regulator integrated circuit to maintain a constant output voltage. The document also mentions simulating this power supply circuit.

1. Electrónica
Analógica
Eduardo Emanuel Tovias
Garza
Engineer Aurelio García
Técnico
Mecatrónica Área
Automatización
29th July 2020 - Matamoros,
Tamaulipas
Power Supply
Operation and
Simulation

2. Practical Power Supply
with Fixed Voltage Output
This is a practical
power supply with
output to 5V DC, this
that is very useful in
things as, phone
chargers, little devices,
this power supply are
in many electric
devices.

3. Transformer
A transformer is a device
that is used to either raise
or lower voltages and
currents in an electrical
circuit. In modern electrical
distribution systems,
transformers are used to
boost voltage levels so as
to decrease line losses
during transmission.
Operation of power supply
stages

4. Rectification
A Bridge rectifier is an
Alternating Current (AC)
to Direct Current (DC)
converter that rectifies
mains AC input to DC
output. Bridge Rectifiers
are widely used in power
supplies that provide
necessary DC voltage for
the electronic components
or devices.
Operation of power supply
stages
This is te actual pase with
rectification

5. Smoothing
Capacitor supplies the
charge as the rectified
voltage fails.
In the time it takes the
output voltage from the
bridge rectifier to drop
from its maximum to zero
and then rise back up
again, the capacitor does
not lose all its stored
charge.
Therefore the voltage
measured across it stays
near to the maximum
voltage.
Operation of power supply
stages

6. Regulation
Voltage sources in a circuit
may have fluctuations
resulting in not providing
fixed voltage outputs. A
voltage regulator
IC maintains the output
voltage at a constant value.
A lot of energy is wasted
in the form of heat.
Operation of power supply
stages

7. Simulation

8. Simulation