Difference between revisions of "Power supply"
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| − | [[Category: | + | [[Category:Hardware]][[Category:Media Center]] |
| − | To construct | + | 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 | ||
| − | + | *Voltage regulator [http://www.national.com/pf/LM/LM78M05.html 7805] | |
| − | *Voltage regulator | ||
*Mounting board - high current rails | *Mounting board - high current rails | ||
=Parts in stock= | =Parts in stock= | ||
*Jug socket | *Jug socket | ||
*Capacitor - low value microF - to reduce RF emissions from regulator | *Capacitor - low value microF - to reduce RF emissions from regulator | ||
| + | *Bridge rectifier - four 1N4004 diodes | ||
| + | *Capacitor - high value - 12V | ||
=Circuit= | =Circuit= | ||
| − | + | [[Image:Power-supply.gif]] | |
Latest revision as of 18:19, 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
- 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
- Capacitor - high value - 12V
Circuit
