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.
SpO2 circuit: how to determine the suitable clock pulse for LED?
Hi!
Please share your knowledge upon my simple question here.
What are the criteria needed in selecting suitable clock frequency to driven my LEDs?
I have two LEDs, red and infrared. I want to design the digital LED driver; where...
hi!
Can you please explain more about what do y0u want to do? Why do you need a comparator? Is it because you want to pick up the highest output out of four photodiodes?
Hi Frank!
The signals that I intend to measure are the photoplethysmography or PPG. Four PPG signals are captured simultaneously at different position of photodetectors. This signal contains AC and DC component. Please refer to the image attach.
From the simulation using optical software...
Hi all!
Please share your ideas with me. Here is my problem. I have 4 sensors which output four different values. The signals from these four outputs are combination of AC and DC signal and they are captured from a large portion area simultaneously.
My question is; Is there any method how can I...
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.
