Hi. I am 13 years old and competing in Robocup jr. which is a robotic soccer competition using an IR ball that sends out a pulse modulated signal. Robocup staff suggested the competitors use a low pass filter to find the IR ball. They recommended we use 100k ohm resistor and a 1 µF capacitor.
http://rcj.robocup.org/rcj2009/newball/cheapRCJ05sensors-RobotDemos09.pdf
It works great but the response time is slow. I wanted to speed it up by making the resistor smaller but that increased the ripple voltage. I used the following website to calculate ripple voltage and settling time:
http://sim.okawa-denshi.jp/en/PWMtool.php
So my question is, what is the maximum ripple voltage that I can accept in my circuit? Thank you!
http://rcj.robocup.org/rcj2009/newball/cheapRCJ05sensors-RobotDemos09.pdf
It works great but the response time is slow. I wanted to speed it up by making the resistor smaller but that increased the ripple voltage. I used the following website to calculate ripple voltage and settling time:
http://sim.okawa-denshi.jp/en/PWMtool.php
So my question is, what is the maximum ripple voltage that I can accept in my circuit? Thank you!