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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.

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 ...
Spencer's user avatar
  • 39
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 ...
Spencer's user avatar
  • 39
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, ...
Hikikomori's user avatar
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 ...
Ajith Mani's user avatar
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 ...
hutao newbiEEE's user avatar
-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 ...
Electrolyte's user avatar
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 ...
sage_lessthan_3's user avatar
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 ...
DaveFenner's user avatar
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 ...
joe_coolish's user avatar
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 ...
Mir Hamza's user avatar
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 ...
San's user avatar
  • 85
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: ...
San's user avatar
  • 85
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-...
David R's user avatar
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 ...
beardeadclown's user avatar
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 ...
jpa's user avatar
  • 8,843

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