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SMPS

Atul Patil

May 26, 2017
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LED drives is like Smps
then why led drivers supplied constant current and smps supply constant voltage
 

Arouse1973

Adam
Dec 18, 2013
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Hello
Explain more I can't make out what you want to know.
Adam
 

Arouse1973

Adam
Dec 18, 2013
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Got any examples of the devices you have been looking at? But if I am thinking of the same thing as you, they are constant current devices. This allows you to connect a number of LEDs in series and still push the same current through the LED string. This is suppose to help keep the brightness fairly constant. This only works kind of if you use the same LEDs with the same characteristics
Thanks
Adam
 

Arouse1973

Adam
Dec 18, 2013
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how to choose which topology is used in smps

Tell me more. What do you want to do. Why are you comparing SMPS and LED drivers they perform a different function. They are similar but quite different in their operation.
Adam
 

Atul Patil

May 26, 2017
4
Joined
May 26, 2017
Messages
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Tell me more. What do you want to do. Why are you comparing SMPS and LED drivers they perform a different function. They are similar but quite different in their operation.
Adam
what is the difference between the forward and flyback topology
and where used one example
 

Arouse1973

Adam
Dec 18, 2013
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A flyback converter uses a transformer arranged with the winding dots away from each other i.e. at opposite ends. This transfers energy to the load when the SMPS output switch (usually a MOSFET) turns off. The feed forward converter is the opposite in all aspects, They do however have some restrictions between different topologies. See this link that should help. You could of done this yourself. And I don't mind if you say thank you. :)

http://www.we-online.com/web/en/ind...d_graphics_1/midcom_blog_photos/SMPSChart.pdf

Adam
 
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