Questions tagged [phase]
For questions about AC phases (e.g. three-phase systems) or phase in the context of waves, transfer functions, etc. Consider using in conjunction with related tags such as "three-phase", "transfer-function", etc., as applicable.
365 questions
1 vote
1 answer
55 views
Bode Plot Analysis - Determine parameters
I'm designing a digital boost converter and need help analyzing this Bode plot. Could you please help me determine the following parameters: Crossover Frequency Phase Margin Gain Margin My conclusions ...
- 13
0 votes
0 answers
59 views
Phase coherence problem between two RTL-SDR's (V3 & V4)
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 ...
- 69
16 votes
9 answers
5k views
Why do electrical engineers prefer "phase shift" instead of "time shift"?
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 ...
1 vote
3 answers
442 views
Understanding Voltage and Current Phase Difference
I am having trouble understanding the concept of voltage and current having a phase difference in AC circuits. I have recently begun exploring AC circuits and have just started delving into the ...
- 421
3 votes
1 answer
210 views
Flicker and Noise Floor
https://www.ti.com/lit/an/sbaa661/sbaa661.pdf?ts=1745596081730&ref_url=https%253A%252F%252Fwww.google.com%252F This document talks about the impact of slew rate of reference source on PLL. Few ...
- 165
1 vote
1 answer
101 views
Weird phase shift values even for simple circuits in LTSpice
I simulated some complicated circuits to solve why an oscilator is not oscilating (strange Murphys law - emitter follower is oscilating, but oscilator not :)) ) and still had a strange phase shift ...
- 51
0 votes
0 answers
81 views
Old single phase motor
I am trying to figure out how to wire this old Stayrite 3hp single phase motor. I have attached a picture of the terminals but that’s all the info I have. I am not sure if there is a capacitor ...
- 11
2 votes
2 answers
138 views
How the derivative of voltage (v = Vₘ sin(ωt + φ)) becomes jωV in phasor domain?
I'm reading sinusoid, and I don't understand where does the Euler's "e" go while transforming it from time domain to phasor domain. How do we get equation (9.27) from equation (9.26) below? (...
