# Triangle generator circuit - supply rail error

I have a simple triangle generator circuit soldered and powered by 5V rails shown below. Verified by simulation and equations, it should output a 500kHz triangle wave a $$\\pm4.2V\$$. Instead, the only thing visible at the output is the power supply noise with additional high frequency noise at the peaks.

It seems like the issue is with the supply rails. The power supply is showing 5V but at the terminals on the board i'm seeing +1.8V for the positive rail and -3.2V for the negative rail. What is the cause of this and how is it possible for this circuit to bring down the supply rails?

• You win the arbitrary sig. gen award of the year. (lol) asymmetric 40Hz (?) with a chirp burst carrier, but at least you a have a 5.0Vpp avg swing. Is that your integrator output on U1A? U need 0V on U2-5. U1-3 and then +5, -5 with caps. When in doubt, check every pin against spec.. – Tony Stewart Sunnyskyguy EE75 Jun 5 at 12:32