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FvM,
Thank you for your reply. Your explanations are reasonable. I will repost the calculations for you or anyone else to confirm that it is correct.
PFC: Calculation assumed inrush current is controlled (negligible)
Thanks
Hi Frank
Thank you for your reply. Your answer (3A fuse) is only specific to 230V (450W), and I am assuming that it is for an RC filtered after the rectification. If the requirement changes, the 3A fuse couldn't be apply especially at higher power. There is also PFC (no RC filter) requirement...
Hello ALL,
I am trying to find calculations/formula for the AC line equivalent current if the load's power is known. I need to calcuate this so I can size up the ac line fuse or common mode choke size, Can anyone help me calcuate them or lead me to a good information source?
Lets say the power...
Thamid,
The MLT (or ALT) specified in the datasheet is "ONLY" for the bobbin not the CORE? See Ferroxcube catalog. If informations of the bobbin is not given, then there is no way we can get that from the datasheet unless we calculate it from the core's dimension. lets say only the core is use...
Thank you all for reply. Mtwieg, you are right about the wide duty-cycle due to wide output. I have made some calculation below and few more questions.
Npri/Nsec=4.5 [Npri=36, Nsec=8 (4turns/secondary C-Tap)]
@ Vin = 390V
Vout = 35V @ [DC = 82.8% (41.4%/channel)]
Vout = 03V @ [DC = 08.5%...
Hello ALL,
I am new here on this forum. I hope someone can help me design a Half-Bridge Converter. I want to design a Half-Bridge DC-DC converter with an input voltage varies from 350-400Vdc and output of
3-35Vdc@10A max. with adjustable output voltage. I would like the SMPS to have current...
Hi ALL,
I've looked at the K7200 schematic. I want to build one (and possibly modify) and have some questions, if anyone can help me?:
1- What is the difference between COM and GND? Is COM connected to the chassis through L1 inductor? Is GND the return from the output (Vout)?
2- Is the "T"...
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