Hi there,
This thread is focused on the above concept however i have three questions - the first in two parts. I have heard the term "interleaved" used a fair bit around the internet in regard to the area of SMPS's. What I am unsure about it just exactly what it means...
1. My basic understanding at this point is that it is used for basically two purposes:
A: To reduce the ripple output by (from what I understand) creating an intermediate peak between the two peaks made up of a rectified sinwave. So you achieve (say with a 90 degrees lag from the second transformer) four peaks "interleaved over each other... In a high frequency stepdown SMPS this means that the filter capacitor has another two peaks to fill it or a peak every 90 degrees of the sine wave signal - four peaks rather than two in a single Hz cycle....
B: the second reason is to increase the power of the system as a whole... so given a maximum core size on hand you can, instead, have two or even three of these smaller transformers and you roughly triple the power output... e.g. three smaller transformers rather than making one bigger transformer... by interleaving them (in this scenario applying it to the simple topology of high frequency, off line and voltage transformation from 240V to say 30V) while reducing the ripple (120 degree lag for each transformer). Am I on the right track...
2. Further I have heard of interleaving the secondaries on a single transformer... Why do this and would this not affect affect (complexity) whats happening in the coil (If they do this).
3. Finally, What is Discontinuous Mode compared to continuous mode and why??
( this might have something to do with Buck or Boost converters rather than a line frequency power transformer with which I intend to work with)
Would be really good to clear up my confusion on this... Will appreciate any input here..
Kind Regards
Simon
This thread is focused on the above concept however i have three questions - the first in two parts. I have heard the term "interleaved" used a fair bit around the internet in regard to the area of SMPS's. What I am unsure about it just exactly what it means...
1. My basic understanding at this point is that it is used for basically two purposes:
A: To reduce the ripple output by (from what I understand) creating an intermediate peak between the two peaks made up of a rectified sinwave. So you achieve (say with a 90 degrees lag from the second transformer) four peaks "interleaved over each other... In a high frequency stepdown SMPS this means that the filter capacitor has another two peaks to fill it or a peak every 90 degrees of the sine wave signal - four peaks rather than two in a single Hz cycle....
B: the second reason is to increase the power of the system as a whole... so given a maximum core size on hand you can, instead, have two or even three of these smaller transformers and you roughly triple the power output... e.g. three smaller transformers rather than making one bigger transformer... by interleaving them (in this scenario applying it to the simple topology of high frequency, off line and voltage transformation from 240V to say 30V) while reducing the ripple (120 degree lag for each transformer). Am I on the right track...
2. Further I have heard of interleaving the secondaries on a single transformer... Why do this and would this not affect affect (complexity) whats happening in the coil (If they do this).
3. Finally, What is Discontinuous Mode compared to continuous mode and why??
( this might have something to do with Buck or Boost converters rather than a line frequency power transformer with which I intend to work with)
Would be really good to clear up my confusion on this... Will appreciate any input here..
Kind Regards
Simon