Components of SMPS

SMPS Provides necessary power, voltage and current to the electronic devices as its requirement.

SMPS (Switch Mode Power Supply) is used to convert Alternate current (AC) to Direct Current (DC). SMPS are widely used in variety of electronics Equipment like Computer, Laptop, LED etc.

SMPS is used in computers to provide a stable and reliable source of power to the various components of the computer. It is an essential component of the computer, and without it, the computer would not be able to function properly.

To identify components of SMPS, you can follow these steps:

1. Unplug the power cord from the SMPS and the wall outlet.
2. Open the computer case and locate the SMPS.
3. Identify the main components of the SMPS, which include the transformer, rectifier, filter capacitor, and switching transistor.
4. Check the transformer for any signs of damage or overheating.
5. Check the rectifier for any signs of damage or overheating.
6. Check the filter capacitor for any signs of damage or bulging.

Important component of SMPS PCB

• Fuse
• Resistance
• Rectifier Diode
• Inductor Coil
• Transformer
• Integrated Circuit (IC)
• Zener Diode
• Capacitor

Fuse :- Fuses (fusible wire links) are one of the oldest and universal method to protect power overload.

Resistance :- Resistance is a measure of the resist to current flow in an electrical circuit. Resistance measured in Ohms, symbolized by the Greek Letter omega (Ω).

Rectifier Diode :- Rectifier Diode is an electrical device that converts alternating current (AC) to Direct Current (DC), a process known as Rectification.

Inductor coil :- An Inductor has the functions of developing electromotive force in the direction that reduces fluctuation when fluctuating current flows and storing electric energy as magnetic energy. it has the characteristic of allowing DC current to flow easily while presenting high resistance against the flow of high frequency currents.

Transformer :- An SMPS transformer is used in a switching power supply to galvanic discontinuity. The SMPS transformer is a separate power supply provide a clear barrier that prevents dangerous high voltages from passing to the output, providing safety from electric shock at the output.

Integrated Circuit :- Integrated Circuits or an IC is defined as a microchip on which hundreds and thousands of electrical components, such as resistors, capacitors and transistors, are fabricated. An IC functions as an oscillator, amplifier, microprocessor, timer or as computer memory.

Zener Diode :- A Zener diode a silicon semiconductor device that permits current to flow in either forward or reverse direction. The diode consists of a special, heavily doped p-n junction, designed to conduct in a reverse direction when a certain specified voltage is reached.

Capacitor :- Capacitor is an electronic component that stores electric charge. the capacitor is made of two close conductors that are separated by a dielectric material. The plate collect electric charge when power connected to power source. One plate collects positive charge and other plate collects negative charge. The Capacitance is the amount of electric charge that is a stored in capacitor at voltage of 1 volt. The capacitance measured in units of Farad (F).