Hi,
I want to design an AC/DC converter
Input 85VAC-265VAC
Output :10W minimum , Voltage can be 12V
Efficiency >85%
Noise Level close to -155dBm/Hz
Board Area should be as small as possible.
can somebody suggest me a good part number to begin with.??
I was considering UCC28610, some evaluatioon boards i ve seen in TI website.
PMP6536-36W
PMP6710 -12W
PMP5637 -12.48W
PMP5212- 12W
Ive checked the test results of these but none of them mentions about the Conducted Emission test results..Is it available somewhere else,,or these designs focus only on efficiency & not on noise (may be im wrong here)?
Can somebody advice me on selecting a proper device for this application.
Als o I've some basic doubts regarding the UCC28610,
I'm only familiar with flyback topology , so i read about a little bit n got the idea that this converter minimizes the loss by employing valley switching in the primary side with variable frequency & synchronous rectification in the secondary side..
Ive not completely understood the valley switching, what i understand that the converter will switch only when the Vds (or Ids) is minimum thus reducing losses..Can some body help me by pointing out any simple document that a beginner could easily understand .. ( ive checked many in the net..but most are confusing with the waveforms)since i vent been clear with this ..i cant understand the term quasi resonant specified in the datasheet...
Also i did a little search about the Green Mode..I believe its a technology helping to decrease the no load or light load dissipation..
Thanks for any help,
Best Regards
Stephen