Questions tagged [sine]
For questions about sine waves as used in electronics (e.g. AC waveforms, oscillator outputs, signal generator outputs, etc.). Consider using in conjunction with tags such as "ac", "oscillator", "math", etc., if applicable.
293
questions
0
votes
1
answer
75
views
Two formulas for defining RMS and average of a waveform through a diode [duplicate]
A textbook problem where we have this given current waveform through a diode.
We are required to determine the maximum and RMS values of it [ Irms and Ip ] giving the average current= something ...
3
votes
3
answers
490
views
RMS of sine wave curve defined between two points
Could someone explain for the following attachment (waveform image) how were exactly the values of "RMS" and "average" determined this way (for that curve of sine)?
Given the duty ...
0
votes
0
answers
52
views
Generate 200MHz Phase-Shifted Voltage Sine Waves
I'm looking into a way to construct a circuit that can generate ~200MHz negative voltage sine waves (8 channels), where there is 11 degrees of phase offset between the channels (0 deg, 11 deg, 22 deg, ...
0
votes
3
answers
123
views
How can I convert a sine wave generated by PWM technique into a square wave?
I have generated a variable frequency sine wave by PWM using an Arduino Uno. I want the obtain a square wave using the generated sine wave, so I used an op-amp to remove the DC offset in the sine wave ...
1
vote
1
answer
43
views
Diode directed into the negative terminal of a sinusoidal voltage source
If my V_in is a sinusoidal voltage, what would be the V_out?
I tried to plot this in ltspice, however, I ran into trouble on where to connect the ground, on what node should I use to extract V_in and ...
-1
votes
2
answers
95
views
Building a unity-gain op amp with speaker?
I am trying to build a voltage follower op-amp circuit to hear a sine wave but I can't get it to work. I was using the LM386 but then found out that it has a gain of 20 by default so I can't use it. I ...
0
votes
2
answers
87
views
Using a square and/or sine wave generator through a speaker [closed]
I have recently undergone some university study which introduced square and sine wave generators, I was wondering if there's a specific speaker I could use (its inputs would be a power supply and the ...
3
votes
1
answer
237
views
How can I generate a 100kHz sine wave on FPGA?
I am performing direct digital synthesis on my FPGA using lookup tables, and jumping through them to increase output frequency.
As the value of the phase accumulator increases, the sine wave becomes ...
5
votes
3
answers
913
views
Just inherited a digital phosphor oscilloscope and trying to figure out why the sine wave is doubled
I was just given a Tektronix TDS 3014B and I wanted to learn how to use it. I setup a simple sine wave generator and I'm working through all the menus. When I start the sine wave, everything looks ...
4
votes
4
answers
1k
views
BJT as current buffer for op amp
I am working on creating a 10-20KHz 0-5V sine wave feeding a coil which would be around 450uH. At this stage I am stuck in that I can produce the sine wave using an STM32 or a DDS IC but that will not ...
1
vote
3
answers
208
views
Sine wave CMOS buffer from inverters with or without feedback
Is it possible to buffer a sine wave using inverters alone or with some kind of feedback?
I've been browsing google for minimalistic (I'm in 3.3-12 V domain) sine wave buffers and this thought stuck ...
0
votes
1
answer
90
views
High voltage pad buffer design with 2nF load and ringing on first stage output
I am trying to design a high voltage (12V) buffer that will drive a sine wave with rail-to-rail peak-to-peak amplitude and a big capacitive load, maybe 3nF.
Browsing I came upon this Master's project: ...
0
votes
1
answer
58
views
Input stage for sampling audio sine wave with ADC
I'm building a prototype, checking the potential for a project.
I want to be able to sample a sine wave from a power amplifier using a Teensy4 ADC.
I have a Teensy 4.0 powering an Evisun isolated DC-...
2
votes
2
answers
242
views
Simulating square to sine wave conversion via LC circuit results in 200-fold amplification
After watching this video I decided to simulate the following circuit in PSpice:
Time domain simulation with general settings, TSTOP of 100 ms and maximum step size of 1 μs yielded the following sine ...
2
votes
1
answer
353
views
What is the output voltage of 1 Vp-p specified sin/cos encoders?
Encoders with sin/cos analog output (example model Hengstler S21) typically specify the output signal as 1 Vpp. This seems to be some kind of de-facto standard for the output amplitude.
If I ...