1. Quote of the week: "Whatever you do, always give 100%. Unless you're donating blood" - Bill Murray
2. New quiz AQQ280:
The circuit here below is a relaxation oscillator using a double wipers potentiometer.
The opamp is considered ideal (i.e. infinite open loop gain, infinite input impedances, zero output impedance).
Questions:
- What’s the frequency at Vout for a = 1/3 and b=2/3?
- Same question as above but for a=10% and b=90%
- What happens (i.e. Vout) if the 2 inputs of the MUX are swapped (i.e. a selected when S=1 and b selected when S=0) ?
Good luck and try to be among the first ones!
If you know friends or colleagues who should participate to the quiz, please let them know ((3) Add Discussion - Quizzes - Logic Lounge - EngineerZone) !
source: https://commons.wikimedia.org/wiki/File:Blood_Donation_at_Hospital.jpg
[edited by: ambugua at 7:15 PM (GMT -5) on 21 Feb 2025]
