Tagged Questions
2
votes
1answer
91 views
Filtering High Frequency Channel Noise
I have a signal that should have this theoretical shape:
The signal I am receiving experimentally has the following shape:
And here is a plot that better shows the shape of the waveform (I have ...
3
votes
3answers
226 views
What could be causing this sine on 7810 output when powering BLDC fan?
I'm powering a 12 V computer fan with a simple 7810 circuit shown here:
When the fan is connected to the regulator, on the output I get this wave:
When I zoom out in time, I get something that ...
3
votes
2answers
263 views
Reducing noise in mixed-signal audio circuit
I am working on an audio circuit featuring the MOS Technology 6581 SID. The circuit works on a solderless breadboard with acceptable but still quite noticable noise. I am now going to design a PCB, ...
1
vote
3answers
442 views
LM317 Ripple Rejection
I've developed a circuit for my model aircraft, which requires 3.3V @ 100mA. My aircraft uses a 3S LiPoly, which ranges from 9V - 12.6V. When the motor is off, the 3.3V supply is good; very low ...
4
votes
6answers
859 views
What's causing this high frequency ripple on the output of my LM317?
I'm using an LM317T to regulate 5V to 3.38V for a microcontroller. R1 is 330 ohms and R2 is 560 ohms. There is no input capacitor and the output capacitor is a 470µF 25V, because I had that value in a ...
