Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
@KerimF - I really haven't decided on the load yet. I could really use any load I want. I am just trying to pick up on some concepts as of now... Once I get this right, I can go ahead and design the circuit for the load of my choice. I'd eventually like to choose a load with linear resistance...
Guys, thanks for your help and patience.
ftsolutions - This is not a homework assignment... and I am familiar with basics of circuits - current and voltage divider circuits.
The two resistors being parallel to the bulb, the voltage drop across the two branches would be the same. And the...
Kripton2035, wouldn't that be sending the voltage drop across 3.3K resistor to ADC?
Correct me if I am wrong.
- - - Updated - - -
ftsolutions - Do you have a reference circuit to support what you're saying about using an op-amp... that would help me understand better.
Thanks guys! :)
I understand that, but where would my load go in this case? I'm so confused! I want to scale the voltage drop across my load(BULB) to 0-5V and then send that to ADC.
https://obrazki.elektroda.pl/7529688800_1381594654.png
I am working on a project where I am going to build a watt-hour meter. Currently, I am working on measuring voltage. I was planning on using PIC Microcontroller.
Say, I want to measure voltage across a 8Watt DC Bulb/LED which operates at 12-18VDC. I am going to scale this voltage drop between...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
