Questions tagged [signal]
A signal is a stream of information in the form of a varying quantity. Usually in electronics, signals can be in the form of voltages, currents, or radiated electromagnetic fields.
1,940 questions
1 vote
4 answers
199 views
Op-amp signal differentiator producing an incorrect output
I am currently working on creating a circuit that differentiates an incoming signal and outputs the result. I am using the circuit shown below for use as a low-noise counterpart with the same values ...
- 29
-1 votes
1 answer
54 views
Linear AC voltage to DC 5v or 10v PWM conversion
I have a vehicle with generator style speed signal generator and its output is linear from 0 -30VAC. This signal is used by the Dash mounted speedo without any issue. I now have a mandated requirement ...
-2 votes
1 answer
91 views
How does a noiseless channel of BW B can transmit a maximum of 2B independent informations per second?
The book by B.P. Lathi mentions this excerpt: If nyquist rate suggests that the sampling rate should be atleast 2B Hz, shouldn’t the transmission rate be a minimum of 2B independent informations per ...
- 203
2 votes
2 answers
482 views
Rotary Encoder Signal Distortion [closed]
I'm pretty new to oscilloscopes so I apologize in advance. I'm experiencing significant signal distortion on the rotary encoder output from a linear actuator and this is what the oscilloscope is ...
- 31
0 votes
0 answers
89 views
Test ARINC 429 receiver with generator
I want to send ARINC 429 message to line receiver HI-8588. I use OWON DGE2035 as generator and Hantek 2042 as oscilloscope. CH1 sends original 32 bits message and CH2 sends same message inverted. Wave ...
- 123
3 votes
2 answers
154 views
Is it safe to route an audio signal trace underneath power rails (+15V/-15V) in a tight PCB layout?
I'm working on a compact PCB for a preamp circuit using NE5532 op-amps. Due to space constraints, I’m considering routing an audio signal trace on the bottom layer of the PCB, directly underneath the ...
- 325
4 votes
0 answers
93 views
Uncertainty principles and signal recovery (Donoho and Stark)
I am trying to reconstruct a signal that has missing samples using the methods proved in the title paper. The paper is readily available (https://web.stanford.edu/dept/statistics/cgi-bin/donoho/wp-...
- 141
3 votes
1 answer
96 views
Balanced Mic Preamp PCB Layout - Close Traces?
I'm designing a PCB for a microphone preamp with a balanced input. The signal is amplified by around +30 dB and then converted to unbalanced at the output. This is my first time designing a PCB for a ...
1 vote
2 answers
161 views
Trouble utilizing intrumentation amplifier
I'm currently designing a signal conditioning circuit for a piezoelectric sensor, and am using an INA849 for the first stage of amplification. Currently, I'm only using a function generator and a ...
2 votes
1 answer
145 views
Is it possible to use two (or more) antennas to ensure good transmission/reception?
I'm a junior EE working on an avionics system for a model rocket. I'm trying to implement telemetry. The telemetry should send flight data (IMU, power, etc.) along with GPS location data, to the ...
- 87
-5 votes
1 answer
93 views
What does 'clocked out' mean?
In 7 Series FPGAs Configuration (UG470), Xilinx says, DOUT is the data output for a serial configuration daisy-chain. DOUT is clocked out on the falling edge of CCLK. What does it mean by 'clocked ...
- 717
4 votes
1 answer
125 views
Problem in demodulating PAL signal
I am trying to demodulate an analog video signal of PAL format and encountered a problem in demodulating the color part. So my input data is as follows: I have 2500 spectra, spectrum width 200 MHz, my ...
- 41
0 votes
2 answers
126 views
Measuring output power of amplifier
I want to measure the output power of signal from amplifier because I want to verify the signal amplification and distortion. How can I do so? For information, it is a 2.4 GHz sunhans amplifier. I am ...
- 11
0 votes
2 answers
141 views
Why does this phase shifting network attenuate the input signal?
Below shows the phase shifting network I designed for a FM detector. The goal is to create a 90° phase shift between the input and OUT1 at the centre frequency 10.7MHz. This circuit drives the bottom ...
1 vote
1 answer
69 views
PWM Output Channel Speed
I'm a mechanical engineer with some light knowledge of electronics. I might not understand immediately, but whatever knowledge you provide I'm sure with enough hours of googling I'll be able to figure ...
- 11