D
Dave
- Jan 1, 1970
- 0
I need to build a power supply which will give minimum +/- 12VDC to power an
audio device.
I've got a transformer which outputs 18VAC from an old CD player and a
simple schematic which shows four 1A diodes arranged to output DC voltage,
followed 2 capacitors (3300uF electrolytic and 1uF disc, one of each on the
negative and positive) with analog ground being the other side of each pair
of capacitors.
I have two questions:
1. Can I use a full-wave bridge rectifier unit instead of the four diodes?
If the answer is no, why not?
2. Can I use a cheap "wall wart" DC power pack as my DC supply instead of
my AC transformer and diodes/rectifier? I would then wire in the capacitors
to create my analog DC ground.
Any replies greatly appreciated.
audio device.
I've got a transformer which outputs 18VAC from an old CD player and a
simple schematic which shows four 1A diodes arranged to output DC voltage,
followed 2 capacitors (3300uF electrolytic and 1uF disc, one of each on the
negative and positive) with analog ground being the other side of each pair
of capacitors.
I have two questions:
1. Can I use a full-wave bridge rectifier unit instead of the four diodes?
If the answer is no, why not?
2. Can I use a cheap "wall wart" DC power pack as my DC supply instead of
my AC transformer and diodes/rectifier? I would then wire in the capacitors
to create my analog DC ground.
Any replies greatly appreciated.