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Some simulation results:
CASE-A:
Power supplies of the op-amp, ±Vs = ±15V.
CASE-B:
Power supplies of the op-amp, ±Vs = ±100V
Observation:
When ±Vs is higher, the width of the "spikes" (which are corresponding to the rising/falling edges of input squarewave) becomes smaller, or closer to...
I assume that the op amp shown in the figure is an ideal model.
It's used to construct an op amp differentiator. When a squarewave input is applied, theory predicts that the output should consist of "spikes" which are corresponding the the rising/falling edges of the input squarewave. The...
An op amp’s recovery time measures how quickly it returns to a linear mode from a state of saturation. Does the op amp model in PSPICE include the effect of saturation recovery? Many thanks.
Since electrolytic capacitor may "leak", which type of box/case/container (e.g. ABS case, etc.) will not be attacked by the "chemical" leaked from electrolytic capacitor?
Thanks.
I wish to ship several 100V 15000uF 100V electrolytic capacitors oversea using a sea freight service which may take up to 12 weeks before it reaches the destination. Do these capacitors need any specific precaution on packaging? For example, do you think the positive and negative terminals of...
Re: Should "sine" or "cosine" function be used to represent currents in a 3-ph system
If 'sine' is used, which case (Case-S or Case-T) is correct?
For example, should the 5th harmonic of phase-B be expressed as "I5sin[5(ω-2π/3)]" or "I5sin(5ω - 2π/3)"?
Thanks.
Should "sine" or "cosine" function be used to represent currents in a 3-ph system?
Assume a balanced three-phase system.
Each phase current contains harmonics: 1st, 5th, 7th, ...
If I would like to write the phase current in an equation form, should "sine" (Case-A) or "cosine" (Case-B) function...
Thanks Jeffrey and FvM.
I'm confused with the assumptions/conditions made in the article below (https://en.wikipedia.org/wiki/Alpha%E2%80%93beta_transformation).
[1st]
The article states that "...In a balanced system Ia + Ib + Ic = 0..." In my opinion, this statement is misleading.
For...
By applying Kirchhoff's current law at the "floating" neutral point of a Y-connected load, "ia + ib + ic = 0" is obtained.
Is this "ia + ib + ic = 0" hold for a (balance) delta-connected load?
Thanks.
I'm not familiar with fully differential ADCs. For example, the following two ADCs:
[A] LTC2389-16 - 16-Bit, 2.5Msps SAR ADC with Pin-Configurable Analog Input Range and 96dB SNR
Pin-Configurable Analog Input Range:
±4.096V Fully Differential
0V to 4.096V Pseudo-Differential Unipolar
±2.048V...
The first figure below shows the MATLAB/Simulink model of a low-pass filter (LPF). The cut-off frequency of the LPF is fc=10Hz. The sinewave frequency is fe=2Hz. As shown in the 2nd figure below, the LPF introduces a phase error at fe=2Hz, resulting in a filtered sinewave with phase error (see...
Another article below showing that "an effective short circuit across the supply" may occur in an inverter due to diode reverse recovery. I wish to understand how the so called "effective short circuit across the supply" can happen in an inverter.
The article below states that "... voltage drop...
Can the MOSFET intrinsic body diode cause short-circuit in an 3-phase inverter?
Found the following article:
Why MOSFETs fail in Solid State TC duty
https://www.richieburnett.co.uk/mosfail.html
The following comments were copied from the article:
Can the slow reverse recovery body diode of...
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