Design Snubber circuit for 240W(48V,5A) SMPS using TOP HX261
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Dear sir,
we are manufaturer or electronic items. we need design of 48v 20Ah battery charger design.
thanks.
s. kaushik
Hi,
I would like to develop 24v 10amp for industrial application. Could please guide me as to which package can be used. My email is nikhilrami@gmail.com.
Thanks
Nikhil
Hi Nikhil,
May we know your complete input and output specs? Thank you very much.
Regards,
Leo
Input voltage 230VAC output voltage DC 24V 10Amp.
The KA431 is not rated for your 48V output, it is only a 36V maximum part ...
Hi Nikhil,
For your requirement you may choose TOP271VG/EG but only if your industrial application is open frame. Otherwise you may take a look at LCS703HG/LG but this needs a DC input so you might consider using a PFC (check the Hyper PFS family) or a rectifier. Hope this helps.
Regards,
Leo
You did not specify what the problem was... anyways looking at your schematic there are a few issues I see
1) The snubber resistor is underdesigned. When I run this design in PI Expert I estimate that the snubber losses will be around 4 W. Yet you are using 2 parallel resistors 100 k each.
2) You need 2 parallel resistor (2 W resistors) with values 15 k each.