| Author | Views | Views Today | Rank | Comments |
| 36,867 | 58 |   |
8 |
| Author | Views | Views Today | Rank | Comments |
| 36,867 | 58 | |
8 |
| Whenever 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. |
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| pleas sir, iwant mixer which uses 20vdc how do iget in | ||
| What kind of U1 if I need 1.5Vdc for my portable mp3 player, if anyone knows the circuit design please post it in this site or send to my e-mail. Thanks | ||
| can you use you tele recharger for the car on a portable cd player ? I would like all in the car to be able to hear certain lectures from school. | ||
| Hey! Cool project but just for easyness, couldnt you swap c4 for a non-polarized capacitor? Also, if you swap the 7809 for a 7805 regulator at 1.5Amps, you can use it (i think) to charge up nearly any USB device if you substitute the output port for a usb prot and wire the + to pin1 and the Ground to pin4. Anyway Ace site, thanks for the help with the motor controller! | ||
| WHAT KIND OF U1 that have a no.of this 7809? | ||
| Hi, Does the circuit take care of spikes generated by the car's power generation unit? Thanks. Sun | ||
| I would like to more on how to built a multi voltage power suplly from 100-260 VAC. e.g a TV. power supply. | ||
| I LIK THIS ONE TOO | ||
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