Schematics > Power > Portable CD Player Adapter For Car
Portable CD Player Adapter For CarWhenever I'm in the car listening to my favourite CD, it always happens-my
batteries go dead. To solve that problem, I built this extremely simple
regulator circuit. It steps down the 12V from the lighter socket to 9V which is
used by the CD player. Different CD players (I have a Sony Discman) may require
different voltages, so just use the correct regulator. All the 78xx series
regulators have the same pin out, so the circuit is universal.
Schematic
Parts
| Part |
Total Qty. |
Description |
Substitutions |
| C1 |
1 |
1000uF 25V Electrolytic Capacitor |
|
| C2 |
1 |
10uF 25V Electrolytic Capacitor |
|
| C3 |
1 |
1uF 15V Elextrolytic Capacitor |
|
| C4 |
1 |
0.1uF 15V Electrolytic Capacitor |
|
| U1 |
1 |
7809 Or Other Regulator (See "Notes") |
See Notes |
| MISC |
1 |
Cigarette Lighter Plug, Plug For CD Player (See "Notes"),
Heat Sink For U1, Wire, Case. |
|
Notes
1. The voltage your CD player needs will determine which regulator you use.
For 9V, use the 7809. For 6V, use the 7806. For the unlikely 5V use the 7805.
Remember that whatever regulator you use, you will need to heat sink it. The
metal case or metal cover on the case makes a great heat sink.
2. I built the circuit in a small case with the long wire to the cigaratte
lighter plug coming out one end, then another, slightly shorter wire going out
the other end to the CD player.
3. Triple check your wiring. You would hate to ruin an expensive CD player
because you reversed one of the connections or hooked the regulator up backwards.......
Title: Portable CD Player Adapter For Car
Source: www.aaroncake.net
Published on: 2005-02-03
Reads: 277
Print version:  Other schematics from Power
120 VAC Lamp Dimmer 5V/1A Power Supply 6V to 12V Converter 2W Switching Power Supply 3-30 V/2.5 A Stabilized power supply Simple Car Battery Charger Instrument panel lamp dimmer control Ni-Cd Battery Auto Charger Basic UPS Power Supply Variable 3 - 24 Volt / 3 Amp Power Supply
Schematics > Power > Portable CD Player Adapter For Car |
Home
