Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Hi!
I’m not familiar with your project, but I think that the 78L05 will be too poor. If you are using 12V source, 7V will drop on the regulator. Imagine, when your board is drawing 100mA, the regulator’s power dissipation is 0,7W. It will become too hot very quickly. I suggest you to use 7805 with heat shrink package and screw the regulator on the cooper surface of the PWB. Important, the heat shrink is connected to the GND pin. The best way to use a low-drop regulator (like LM2931A-5) and a lower voltage source (7-8V).
We don't know your requirements so it's impossible for us to help.
it entails micro with ADC readings and calculations, USART and outputs for LCD display and LEDS and if necessary an alarm!
hi,
Whats wrong with your present setup.? 12Vdc adaptor driving a 7805 reg.
It will be sufficient for all the functions you have listed.![]()
actually i'm an amateur when it comes to electronics!...i thought an adaptor as only for circuits on my table now(on the breadboard)! and i thought of something else when it comes to PCB and real implementations...i posted this thread to dig some relevant info.
thus anything useful i'll appreciate it!
kinds regards!
I agree overall with your assessment, I just wanted to clarify something quickly: I think you meant "heat sink" instead of "heat shrink".
Torben
I'm only mentioning it because if the OP took that literally and put heat shrink tubing over the regulator he might wonder why it burned up even faster.
Regards,
Torben
Now that's a really funny scenario! lol
Yes, now you can see that to condomize is not always the best solution.
Mmmmmm
The chip is in a condom, get it.
hey, guys!
what have u agreed is the best solution to the thread?