| ??? 03/14/03 12:02 Read: times |
#41504 - RE: -12 volts from 7912 Responding to: ???'s previous message |
You also need to have a couple of volts drop across the 79xx devices to get any decent voltage regulation out of them, if you have a 12VDC mains supply (12VDC Plug Pack?) into a 12 Voltage reg you may have some issues here.
Depending on your current draw you are able to get -Voltage Generators (you put +x volts in and get -x Volts Out) Linear Tech Make them LT1054 is the part number good to about 125mA (enough for OP Amps etc) |
| Topic | Author | Date |
| -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| Re Ijaz | 01/01/70 00:00 | |
| RE: -12 for bell? | 01/01/70 00:00 | |
RE: -12 for bell? | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 | |
| RE: -12 volts from 7912 | 01/01/70 00:00 |