Recent content by lpuppy79

1. In all scenarios, dV2/dt would be -1/[RC]=-1/[(R3+R4)C], correct? 2. V2=R5/(R1+R2+R5)*V1max? 3. If those are correct, I don't understand how to get the frequency or V1pp?

While varying R3 from 100-1000 kiloohms with constant R2 (1 megohm) , the frequency's range was .311 kHz to 2.05 kHz, vsquare ranged 22.9-23.1 V , vtriangle ranged 200-272 mV. While varying R2 from from 0-1 megaohm with constant R3 (140 kilohms), the frequency's ranged from .02275-1.61 kHz...

+/- 12 V as the power supply rails. The amplitude of both the square and the triangle wave varied based on the resistance of R2 so there was no constant square wave amplitude.

vtri=-1/(RC)*integral(vsqudt) from 0 to T ftri=fsqu I already have taken the measurements. I used a LM358.

Ideal Characteristics: High Input Impedance Low Output Impedance Yes, the first is used as a comparator. Is the second op amp essentially just an integrating circuit?

Thanks for trying!

Considering I don't understand anything of what you just said, using EE fundamentals would be very appreciated.

Homework Statement I need to characterize the circuit below in order to compare measured data to theory. Can you determine any the theoretical relationships for the frequency, amplitude, gain of the two voltage outputs? I measured the output voltage of each op-amp while varying both of the...