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19:14
Hey all. Wondering if someone could help me eliminate some noise on my wall wart power supply. It's providing me 12v. But I have about a 15mV ripple at about 1.5kHz. Any way to clean that up a bit?
pi filter
@JonRB I wanted to confirm my understanding on something. You had mentioned PWM frequency and inductance. I figure I find the inductance of the electromagnet but the PWM frequency is determined by f = 1/(2*pi(LC)^0.5), correct?
@JonRB Hey, do you have some time to look at my circuit again please? I'm still seeing noise on my oscilloscope, and I really am not sure why. I've tried running off a battery rather than USB, and adding caps over my bias voltage
@JonRB that only works for 3.1415kHz
19:34
we finally have the perfect notch filter??
meh, wake me up when we have the brickwall LP and HP thx

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