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/sci/ - Science & Math

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1992032 No.1992032 [Reply] [Original]

Anyone help me out with an EE problem that's causing me to rip my hair out?

Ok, here's the circuit:

R = 100, Vs = 11.4 sin120pit)
I'm supposed to create a ripple voltage with less than 1.1 Pk-Pk. Since this is a half wave rectifier:
I measured the voltage across the resistor to be 8.9 I think. Anyway, heres the equation for Ripple

C = VpLoad/fR(VRipple) = 8.9/(60)(100)(1.) = 1.3mF

Now, the highest capacitor I have is a 1mF, can I just add two of those or so in parallel to create that ripple to be less than 1.1? Whenever I try and measure it on the oscilloscope with that Capacitor in place, I always still get a fucking pk-pk voltage of like 10v. wtf am i doin wrong.

>> No.1992037
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1992037

>>1992032
ENGINEERING THREAD!
This book will halp ya!

>> No.1992044

>>1992032
Well there's your problem you drew the coils on your inductor with the wrong chirality! Inductors have a directional flux dependence silly!

>> No.1992056

>>1992032
this is what i have to look forward to in the future? im fucking switching majors