Hey people , Im in matric .and must DESIGN a DC POWER SUPPLY TO PROVIDE 9V TO a radio and determine by means of DATA Sheets the components required,,,,,,,,CAN U GUYS HELP ME PLEASE :?:
If you are going to use an AC power supply (Alternating Current ) which you get at your home, then You need just a rectifier circuit with a step down transformer.
But a bridge rectifier with a capacitor filter can give the precise voltage.
You can get a tarnsformer for stepping down the House hold power supply of
235 -250 V down to 9 V.
A Transformer (Not center tapped) shall be connected to the Bridge rectifier and the load taken across the capacitor.
The diodes used in rectifiers can be IN4007 (4 Nos. )
Capacitor - Use high value for avoiding ripples.
But 47uF to 220 uF can do (will clarify this in short)
Have a load register of 1Kohm connected across the Filter capacitor to avoid unnecessary damage to the circuit.
Added after 39 minutes:
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