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Electrical Engineering

Questions tagged [phase-shift]

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267 questions
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1 vote
1 answer
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I don't understand how output delays work for RF splitters such as hybrid quadrature couplers and lange couplers. In both of these splitters, one output arm is phase shifted relative to the other arm ...
liam casey's user avatar
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4 votes
5 answers
237 views

I need to measure the phase shift between two 120 Hz signals from magnetic pickup coils. I am aiming for ±0.001° precision with 2s averaging. I have experience with basic Op-amp circuits, but I am ...
Kristjan's user avatar
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0 votes
0 answers
92 views

I am studying the RC phase-shift oscillator with stages. In several references, the oscillation frequency is often given as \$ f_0 \approx \frac{1}{2\pi RC \sqrt{2N}}, \qquad \omega_0 = \frac{1}{RC \...
E4928's user avatar
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1 vote
2 answers
307 views

I came across this circuit diagram (attached) with LC components. It is supposed to produce a 180-degree phase shift. How does this arrangement of these inductors and capacitors achieve that? What is ...
Zahid Abbas's user avatar
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0 answers
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I need an all-pass filter centered at 60Hz with adjustable Q factor for sharp roll-off and 180 degrees total phase shift. 0 degrees phase shift at higher frequencies and 180 degrees phase shift at ...
wonderfuliot's user avatar
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1 vote
2 answers
189 views

I'm attempting to match the frequencies of two 555 timer oscillators, by using digital potentiometers to fine-tune the charging & discharging resistors on one of the oscillators to match it's ...
Runsva's user avatar
  • 587
2 votes
1 answer
244 views

Suppose I have 3 separate square-wave digital 5V clocks, named A, B and C. All 3 clocks are ...
Runsva's user avatar
  • 587
0 votes
0 answers
73 views

Im currently trying to acheive some rough phase coherence between two rtl-sdr dongles, the dongles share a single 28.8 MHz clock signal (from V4 to V3). However, there seems to be some phase drift ...
Allfadern's user avatar
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0 votes
2 answers
111 views

I have an application involving modulation/demodulation with a 20-40 MHz frequency that I need to apply in two places with controlled phase offset. I usually do this with something like the Rigol ...
dave's user avatar
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16 votes
9 answers
5k views

Humans experience time, not phase. Imagine the childhood game of message passing between a wire connected to two cups, one person talking at one end of the cup and the other person listening. The ...
Your neighbor Todorovich's user avatar
  • 305
0 votes
0 answers
111 views

I'm looking for an analog circuit that can phase shift a sawtooth wave from 0 to 360 degrees.It needs to work with frequencies from say 1 Hz to 20 kHz. I found one here https://modwiggler.com/forum/...
user2686095's user avatar
  • 73
4 votes
3 answers
392 views

I am testing a high-pass (HP) \$L-R\$ series circuit. My inductor is 33 mH, and the resistor is 1200 ohms. The phase shift of my \$L-R\$ HP circuit should be \$\tan^{-1}(6200/f)\$ -- this works until ...
AQuestion's user avatar
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1 vote
2 answers
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I'm working on a project where we have an emitter that produces a sound at a known frequency and a receiver with two microphones placed a small distance apart. The goal is to determine the direction (...
Mika Goenen's user avatar
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1 answer
75 views

I’m studying on how to characterize each antenna working simultaneously in a phased array. I found a paper Link added. Looking at Fig.1, as far as I understand, it does four measurements, each for ...
Xant's user avatar
  • 163
6 votes
2 answers
476 views

In the book "The Art of Electronics" a phase shifter circuit is presented page 89: The phase shift of the output voltage is defined as 2·atan(ωRC). When I calculate the phase I always get 1/(...
Velibor Simovic's user avatar
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