How does smps working?

 SMPS (SWITCHED MODE POWER SUPPLY)

(SMPS Pcb circuit board)

• It is use as voltage control circuit. Our electric appliences are design to run on it's rated voltage. but when some changes occur in voltage it may harm for our device.
• So we must have to use voltage controller. So it oppose the change of value.
• SMPS is one of the this type device. It oppose the change of value.

There are some component in SMPS

1. TRANSFORMER
2. RECTIFIER
3. CHOPPER
4. FERRITE CORED STEP DOWN TRANSFORMER
5. SAMPLING NETWORK

BLOG DIAGRAM OF SMPS

• Line by line we will understand all function of component which is used in SMPS.
• TRANSFORMER: -

• Transformer is use for transform power.
• Here it is Step-down transformer.
• Here input is 230v. It is too more for rectifier.
• So transformer step down it in 12v or 24v(as per required)

                    

• BRIDGE RECTIFIER: -

• Bridge rectifier is use to convert Ac current to Dc current.
• It is full-wave rectifier.
• It has 4-Diod.
• in this rectifier there are center tapping is necssary.
• At here with rectifier there are parallel capacitor filter.
• It make pulsating Dc in to smooth Dc(not all component)

• CHOPPER: -             

• Chopeer is device which convert high voltage Dc to high frequency Ac.

• FERRITE CORED STEP DOWN TRANSFORMER: -

• This is FERRITE CORED STEP DOWN TRANSFORMER.
• It convert high voltage, high frequency Ac to high frequency, low voltage.
• There are approximately 20kHz to 50kHz frequency.
• Therefor the size of it is lower as compare to main frequency transformer. 
• There are PI filter is also conncted in parallel.
• Again it convert pulsating Dc to smooth Dc.

• SAMPLING NETWORK : - 

• Then we took sample from output which is smooth Dc with the help of sampling network.
• Then we transfer it to comparator.
• It compare output sample and reference sample.
• If any changes may require it gave signal to chopper.
• So chopper change frequency as per require. 

SO, THIS IS HOW WE USE SMPS (SWITCH MODE POWER SUPPLY) AS REGULATOR.

PLEASE LEAVE YOUR LOVE BY COMMENT AND SHARE.

THANK YOU