Hello, readers welcome to the new post. In this post, we will learn Switch Mode Power Supply (SMPS) Module PCB. This category of power supply is also known as switched power supply, switcher that consists of switching regulator that used to convert electrical energy. This supply helps to transform the DC or AC to dc. This function is accomplished in electronic devices like computers. It has a transistor called to pass that helps to switch SMPS among the less dissipation full on and off conditions. This power supply in form of ideal there is no use of power. To get the voltage regulation change the ratio between on and off time. In the case of linear supply, there is output voltage regulation is done through the dissipation of power in the transistor.
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Introduction to 5V Switch Mode Power Supply (SMPS) Module PCB
The 5 volts switch mode power supply offers an eight-milliampere current and can be easy to use.
It consists of simple circuitry that has a small number of elements to convert 220 volts ac input to five volts dc.
The application where it used is a charger of the mobile, laptop, video players, etc.
Its main features are it takes 220 volts ac at the input and give five volts at the output with eight hundred ampere current.
5V Switch Mode Power Supply Pinout
There are 4 main pinouts of this module that are mentioned here.
IN+ : At this terminal 220 volts ac is given.
IN-: Negative ac volts are given.
Out+: Here plus five volts dc is taken out.
Out-: Here negative dc is given.
The circuitry of this power supply is very basic that consists of main elements used in the projects.
At the board of circuitry, there is one step-down transformer used to decreases voltage from 220 volts AC to five volts AC.
After decreases, the volts send to rectifier circuits created with diodes and make this ac to dc.
For making pure dc and remove the pulses there is capacitors are connected to the circuits that make pure ac.
From this, we concluded that this circuitry consists of main four elements.
Step down transformer.
Diodes or Rectifiers
Capacitors and resistances.
SMPS Circuit Working
In a linear power supply, there is the installation of a linear regulator to offer the required output voltage through use of extra power in case of resistive power losses.
The linear regulator varies the voltage through losses of extra electrical energy in the shape of heat due to this result its efficiency is taken by using formula voltage out/ volt in.
While in case of SMPS varies output volts and current through use of switch and has zero power losses like in inductor and capacitor among the different electrical arrangements.
In the case of ideal switch components, there is no resistance in the case of operative, and when non-operative there is resistance occur.
In real cases there is no existence of ideal elements due to this reason switching power supply is not working at a hundred percent efficiency.
In the SMPS the output current passes rely on at the input, storing components, and circuit configuration.
The main applications of this power supply are listed here.
It used to power the Dc motors.
Used in charge of your mobile and laptops.
It employed in supply of controllers.
Used in video players.
SMPS Advantages and Disadvantages
These are some advantages and disadvantages of this project are explained in detail.
The basic benefit of this power supply is high efficiency over the linear supply since switching transistors lose less energy over the operating switch.
Another benefit is that it is a small dimensional module, less noise generation, and less weight.
The transformer used in this module has fewer standby power losses.
Its drawback is that has a larger complication, produces large amplitude, large frequency.
It has high ripple voltage in case of switching frequency and also comes with harmonic frequency
So that is all about the Switch Mode Power Supply (SMPS) Module PCB I have explained each and every factor related to this board. If you have any problem plz mention. Thanks for reading have a nice day. I have explained this tutorial with details basis.