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SMPS (Switched Mode Power Supply)

Written By: 

Preeti Jain
Applications of SMPS:
·         Machine tool industries
·         Security systems like the CCTVs
·         AV products
·         Support supplies for Programmable Logic Controllers (PLCs)

 

 

 

Future Trends:

 

The future of the SMPS is aimed at making it more efficient which goes on to a better converter doing the most effective conversion process. The main focus of designers in making the SMPS efficient includes:
·         Higher output power
·         Achieving higher current output and low voltage
·         Increasing power density
·         Using switching device like Schottky diode
 
SiC Schottky diode can be used as an active device in place of a transistor with high switching frequency. These SiC Schottky diode are benchmark in 300-600 V range of operation. The switching characteristics of a SiC Schottky diode is shown here. SMPS11
 
 
Advantages of High Switching Frequencies:
·         Continuous current mode operation possible with ultrafast diode.
·         High switching frequencies with identical efficiency: smaller and cheaper passive components.
·         Absence of reverse recovery : smaller MOSFET and/or higher reliability
 
Learn about SMPS through exclusive images in the Insight teardown of a conventional SMPS.

 

 

 

Comments

Finally! This is just what I was lokonig for.

nice one

 

ok very well..... i got it thanks 4 your help

its not enough

 

how to check the smps not work

I Have Repaired these things Before,since We"re Dealing with High Voltage In The KHz Frequency Region I UNPLUG It First Then ....Do Resistance Checks Second,,Transistors Power FET;s Regulators and Scr;s,Then Transformers Capacitors Diodes and Resistors Next!!! For Safety Sake Use An Isolation Transformer with a Variac. I"ve Repaired 13.8 volt Power Supplies Using This Method and ALWAYS Keep 2N3055 Transistors In Stock for Possible Replacement

When it not work

By sorting the black and green wire we can able to check weather the smps fan s running means it's working perfectly otherwise der s a fault n it

By sorting the black and green wire we can able to check weather the smps fan s running means it's working perfectly otherwise der s a fault n it

Long life capacitors in LED LIGHTING DRIVER POWER SUPPLY
 
Shanghai Yongming Electronic Co., Ltd., which is a China-based manufacturer focused on designing &producing Aluminum Electrolytic Capacitors. Qualities has approved by current customers PHILIPS GE OSRAM TOSHIBA. 
 
Radial Leading & SMD capacitors in LED DRIVER, POWER SUPPLY:
1. Super long load life LLK series 20000hrs, LKZ series 15000hrs, LKG series 12000hrs at +105C 
2. Super high temperature LKL series 5000hrs at +130C
3. More smaller size LK7 series size 5*7mm, LKM series size 5*9mm
 
For datasheet and free samples if need, pls TEXT me at +1-2018985566 or whatapp+8615653007886 
or email to cwj(at)sh-ymin(dot)com/////
////www(dot)facebook(dot)com/shanghaiyongming////
///////www(dot)sh-ymin(dot)com///////
 
Kind Regards
Johnson
Shanghai Yongming Electronic Co., Ltd.
Fengxian District,Shanghai 201406, China 
Office:+86-21-33617848
China +8615653007886
US +12018985566

suffice

check the smps work

HOW TO CHECK THE SMPS DEAD YA OK

Good SMPS have a fuse also in case their is very high input power supply it would get blown and cut off the supply.

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