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Questions tagged [phase-shift]

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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 \...
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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 ...
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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 ...
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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 ...
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Suppose I have 3 separate square-wave digital 5V clocks, named A, B and C. All 3 clocks are ...
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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 ...
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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 ...
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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 ...
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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/...
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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 ...
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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 (...
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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 ...
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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/(...
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If we take two orthogonal dipoles and feed them with 90° shift, we get a cirular polarized antenna. But if we want to make a phased array of such antennas, how do we control their phases for beam ...
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I need help in a simulation for LTspice. I need to shift a quadratic signal, the thing is that this signal is made in bv (behavioral voltage) using a function; V={V(n_x)^2}, which changes a SINE ...
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