??? 12/15/05 03:16 Modified: 12/15/05 03:18 Read: times |
#105258 - LM317 Responding to: ???'s previous message |
You can use a LM317 as turned-on regulator, like it's shown in this example:
![]() Values of resistors must be changed of course to provide 5V at output of LM317. You can also omit the 220nF capacitor from ADJ-pin to ground and the 10R resistor in series to collector of BC337. If the BC337 is turned-off, then 5V will develop at output. If the BC337 is turned-on, on the other hand, then at output 1.25V is generated. This should not be harmful. Kai |
Topic | Author | Date |
Connecting to power | 01/01/70 00:00 | |
many possibilities if you switch before | 01/01/70 00:00 | |
do you mean 7805? | 01/01/70 00:00 | |
many | 01/01/70 00:00 | |
before or after regulator | 01/01/70 00:00 | |
High performance power FET? | 01/01/70 00:00 | |
maybe, maybe not | 01/01/70 00:00 | |
Not quite | 01/01/70 00:00 | |
Misunderstanding? | 01/01/70 00:00 | |
Not true either | 01/01/70 00:00 | |
Examples? | 01/01/70 00:00 | |
IRF has a pageful of them | 01/01/70 00:00 | |
Ok, maybre I was not clear, but correct | 01/01/70 00:00 | |
Ehm, no | 01/01/70 00:00 | |
which I also covered | 01/01/70 00:00 | |
Well | 01/01/70 00:00 | |
(not so) recent knowledge | 01/01/70 00:00 | |
Even the voltage! | 01/01/70 00:00 | |
LM317 | 01/01/70 00:00 | |
NMOS? | 01/01/70 00:00 | |
IRF got those too | 01/01/70 00:00 | |
Of course... | 01/01/70 00:00 | |
Load switching?![]() | 01/01/70 00:00 |