What is SMPS (Switch-Mode Power Supply)?
The full name of SMPS
is Switch-Mode Power Supply. SMPS is defined in simple language when the need
for electricity comes in the form of a switch. In which electrical energy is
converted from one form to another with essential properties called SMPS. This
power is used to obtain a regulatory DC input voltage from DC output or
uncontrollable AC for power. SMPS is just as complex as any other power supply
system. This is a power source used for loading.
SMPS is an important
device for a wide variety of electrical and electronic devices. Which provides
it with a source of power consumption specifically designed for electronic
projects?
Working Principle of
SMPS (Switch Mode Power Supply):
The working principle
of switch-mode power supply topologies is as follows:
1. AC-DC Converter SMPS
Working:
In this type of SMPS,
the input supply is AC and in the output, we get DC supply. Rectifiers and
filters are used to convert this AC power to DC. This uncontrollable DC voltage
is given to the affected power factor correction circuits. This is because
there is a low current pulse inside the rectifier around the peak of the
voltage.
This includes
high-frequency energy which influences to reduce the power factor. This is due
to power conversion but we have used AC input instead of DC input supply.
Therefore, a combination of rectifier and filter, this block diagram is used to
convert AC to DC, and switching an operation is done using a power muffle
amplifier.
MOSFET transistors use
low resistance and are capable of resisting high currents. The switching frequency
is chosen so that normal humans (above 20KHz) must be kept low and the
operation of the switch is controlled using a PWM oscillator.
Again this AC voltage
is given to the output of the transformer as shown in the figure or the voltage
level goes down. After that, the output of this transformer is fixed and
smoothed using the Output filter and corrector. The output voltage is controlled
by the reaction circuit compared to the reference voltage.
Advantages of Smps:
The benefits of SMPS
are as follows:
High efficiency:
The main advantage of
SMPS is that it is more efficient than linear regulators. This is because the
switching transistor dissipates a little power when it acts as a switch.
Compact:
Forms SMPS can be made
more compact as a result of higher efficiency and lower levels of heat
dissipation.
Costs:
Switch-mode is the value
of a point making the power supply. Efficiency The high efficiency and
switching nature of the design means that the standby power loss is often lower
than that of transformers and this reduces costs.
Flexible Technology:
The SMPS feature can be
used to provide high-efficiency voltage conversion to voltage step-up or
“boost” applications or to step-down “buck” applications.
Applications of SMPS:
The application of SMPS
is as follows:
- The most common use of this is in computers.
- Smps is used in security
systems.
- This is used in the
railway system.
- It is also used in
battery chargers.
- It is also widely used
in machine tool industries.
Questionnaires
1. What is the main
function of SMPS?
SMPS is a switch-mode
power supply. A type of high-frequency power conversion device and abbreviation
for power supply device. Its function is to convert the required voltage or
current level by various forms of architecture.
2. How does a switch
power supply work?
SMPS works by turning
the main power on and off at a high speed to reduce the voltage. In such a case
the reduction in voltage depends on the ratio of time and off time. Switching
happens very quickly, 10,000 times or faster per second.
3. What is SMPS short
answer?
SMPS stands for
Switch-Mode-Power-Supply. It is used in all types of computers. Today’s modern
computers have an SMPS that takes the improved AC input power from the board in
the house, by making a power factor correction and then converting the output
to a single or lower voltage DC output.
4. What are SMPS
Applications?
The application of SMPS
is as follows:
·
The most common use of
this is in computers.
·
Smps is used in security
systems.
·
This is used in the
railway system.
·
It is also used in
battery chargers.
·
It is also widely used
in machine tool industries.
