SMPS of 4.5W Input range 19.2 to 373 DC
Posted by: shwetaspt0
on
We design a smps having 4.5W ,Input DC 19.2-373DC.For that we used a Transformer EE20 core size.
When the Input is low voltage 19.2 ,Frequency is 132kHZ and working is CCM mode.
When the Input is high voltage 373 ,Frequency is 40kHZ and working is DCM mode
for design of transformer we considered 132kHZ but at operation it is reducing the frequency will it cause a problem of saturation or will transformer will able to deliver that much power as frequency .
Hi Shwetaspt0,
Thank you for logging your request here in our forum.
Can you share your schematic and transformer design so we can review it? The frequency of operation is determined by the transformer construction and inductance value so it will help us if you can provide them to us.
If it is something confidential, we can do an offline communication through our PowerPros online support. We'll wait for your advise.
Regards, Gavin