230 V A.C. to 5 V D.C. direct IC

Replies

• 

  Ramani Aswath

  Something like this?
  #-Link-Snipped-#
• 

  [Prototype]

  You can do it without IC (and transformer) as well with proper rating of diodes & capacitors, however this is a very dangerous setup as due to absence of transformer there is no isolation.
  
  There could be an IC, but I think the reliable solution would be using a transformer itself. You should realize that lots of SMALL components are packed in a very less space so generally ICs have a lot of problem with heat dissipation. Using ICs for such high voltage application would be obviously an unreliable solution.
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  munesh kumar

  the idea of this type of ic is not reliable must use transformer.
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  Harshad Italiya

  munesh kumar

  the idea of this type of ic is not reliable must use transformer.

  Can you tell us why its not reliable ? If we can remove transformer we can make system compact.
• 

  rohit_jun22

  ^exactly. As far as the heat factor goes, it can be controlled by using a heat sink like a normal regulator IC. This type of IC saves a lot of work and it probably is cost effective.
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  munesh kumar

  i agree system must be compact without using txr..but how stepping down of ac can be done without trasformer?
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  Ramani Aswath

  In cheap systems all that is done is to use a series AC capacitor of correct voltage and capacitance.
• 

  Harshad Italiya

  munesh kumar

  i agree system must be compact without using txr..but how stepping down of ac can be done without trasformer?

  Have a look at the link given by Bioramani of datasheet.
• 

  munesh kumar

  ok