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AC to DC converter - design for embedded systems

 Post time:  2009-08-29
 

Author:asok

Points:  30

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I am looking for what will be the most inexpensive and
small size design for 110 v-ac to 5 v-dc (250ma) converter
for an embeeded system. I can not use a wall-wart but the
110v-ac input goes directly to the board. I also do not want
big transformers in the design as the end system is rather
small (something like a plug in to the wall outlet)
Thanks- Asok
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Reply: AC to DC converter - design for embedded systems Post time:  2009-09-01
 

Author:cc9

Points:  5

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the siample circuit will be switcher circuit. you can refer to my blog at my space
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Reply: AC to DC converter - design for embedded systems Post time:  2009-10-05
 

Author:kadal

Points:  5

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You can choose form TopSwitch which has tronsformerless design and cost effective. ( You may have to use ferrite transformer)
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Reply: AC to DC converter - design for embedded systems Post time:  2010-03-19
 

Author:Ram Anant

Points:  70

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Discontinuous mode Flyback converter is the best topology for your application. This will not be any different from your usual cell phone adaptor charger. You may be able to but one that will work over the universal AC input range (85-265VAC). This will help you power your embedded board with 5V only with the needed isolation.

Let me know if I can be of any help.

Thanks,
Ram
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