Difference between revisions of "Power supply"

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[[Category:Media Center]][[Category:Hardware]]
 
[[Category:Media Center]][[Category:Hardware]]
To construct an unregulated DC power supply that will power the main board and any other digital logic circuits that may be required.
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To construct a DC power supply that will power the main board and any other digital logic circuits that may be required.
 
=Parts needed=
 
=Parts needed=
 
*Transformer - input 240VAC output 12VDC
 
*Transformer - input 240VAC output 12VDC

Revision as of 08:36, 25 March 2007

To construct a DC power supply that will power the main board and any other digital logic circuits that may be required.

Parts needed

  • Transformer - input 240VAC output 12VDC
  • Capacitor - high value - 12V
  • Voltage regulator 7805
  • Mounting board - high current rails

Parts in stock

  • Jug socket
  • Capacitor - low value microF - to reduce RF emissions from regulator
  • Bridge rectifier - four 1N4004 diodes

Circuit

Power-supply.gif