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Need Suggestion for SMPS Topology Selection

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Revathysrini

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Hi,

Can you suggest me a SMPS topology for the following specification.

AC input: 85 to 264 VAC

Output 1: 24V, 8A

Output 2: 12V 2A

Thank you
 

just a question

do you need isolation between input supply and the outputs?
looks like you want a 300W SMP (bit of de-rating added)

if yo do then its a offline reg chip, or a offline reg controller,
input filters, bridge reg, high voltage smoothing cap, FET TR switch
isolating transformer (PULSE TYPE), opto isolater for feed-back
low voltage drop pulse diode, low esr caps. op filter chokes.
ect....
 

With low secondary winding losses a forward converter can regulate well on the primary output and cros-load regulation of output 2 unregulated is very good.

- active PFC on front end is desireable.

SMPS_schematic.gif


**broken link removed**
 

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