Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [pole-compensation]

26 questions
12
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2 answers

What is causing this long tail in the transient reponse?

I have a fifth order transfer function for which I designed a controller using pole-zero cancellation technique on a root locus. I am targeting \$<5%\$ overshoot and \$<2s\$ settling time. Currently, the overshoot criteria are satisfied. Note I know…
rrz0
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How are formulas for "in the loop compensation" of capacitive load derived?

I tried to understand https://www.analog.com/media/en/analog-dialogue/volume-38/number-2/articles/techniques-to-avoid-instability-capacitive-loading.pdf The feedback circuit is as follows: so I have to calculate the transfer function VB/VA. I do…
MichaelW
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3 answers

Understanding on frequency compensation on driving capacitive loads with an op-amp

I am trying to understand an example circuit of frequency compensation on driving capacitive loads with an op-amp from: https://www.allaboutcircuits.com/technical-articles/how-to-drive-large-capacitive-loads-op-amp-circuit/ I understand how the…
Alex H
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2 answers

What does Dominant pole/Pole mean related to capacitors and filters or Electronics in general for intuitive understanding

I am trying to understand the feedback compensation techniques of DC-DC Buck converters. And I drift to more and more small questions which make me want to understand the basics of poles/zeroes/frequency In this link the answer given by user Kaz, in…
user220456
3
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1 answer

Pole Zero Cancellation on a Root Locus

Problem Design a controller in the feed-forward path to minimize the effects of the two pairs of dominant poles. Use the pole-zero cancellation technique via the root locus diagram. I have a 5\$^{th}\$ order system with two pairs of dominant poles, …
rrz0
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Compensator design for control systems

Currently, I'm working on linear control course from Nise's book. In the root-locus design chapter, some methods were explained for lag and lead compensator design which uses root-locus properties. But without these methods, it is possible to…
Mert Celik
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5 answers

Understanding of Dominant Pole Compensation

According to Miller Effect, within amplifying devices such as transistors that have inverting voltage gain higher that one, there should be increased input capacitance with increased voltage gain of an amplifier. I has been also said that this…
Keno
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Relation of Eigenvalues with poles and zeros

I have modeled a system showing the following properties. It has some negative eigenvalues. All poles are placed in a left-half plane. Some zeros are right-half plane. In my knowledge, eigenvalues demonstrate the location of poles as they are…
Dan
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Flyback bode plot & type 2 comp

I'm trying to compensate a flyback boost circuit. Unfortunately I seem to be failing to make the gain of the system ever cross 0 dB. I feel like I'm missing something obvious... Like a pole? I'm following the app note for the PMIC I'm using, so I…
MadHatter
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How does this compensation network work?

By accident I stumbled upon this Linear Technology application note (LT1074/LT1076 Design Manual): https://www.analog.com/media/en/technical-documentation/application-notes/an44fa.pdf Just for fun I simulated the positive to negative converter in…
MichaelW
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Regarding Miller compensation

Can anybody briefly explain about Miller compensation? What is the need of pole splitting? How does it improve both the unity gain bandwidth and phase margin?
Camila's voice
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Phase Lag Compensator

I have a question on lag compensators in general. Why do they increase both the rise time and the settling time? Is it due to the introduction of a slow pole? Much thanks!
aid846
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How is this pole compensated

I have an amplifier in a closed loop, the diagram looks as follows: The DC gain is simple which \$ -Rf/R1 \$. If I make \$ -Rf=2\cdot R1 \$ the the DC gain is two. This is verified using AC analysis in Cadence. However there seems to be a complex…
RAN
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-20 db/decade Gain Slope requirement for Stability?

I have been learning Analog Filter designing. I started with Loop Compensation in power supply. I came across a document. It states that: The requirement for stability is typically met if the overall gain crosses 0 dB with a slope of –20…
abhiarora
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Pole location in simple RC circuit

Could someone help me to find the pole expression in the circuit shared below? The expression of the zero is: (Wz=-1/(R8*C2)), but I'm unable to find the pole location due to R8 (without it I would be able to find the pole).
AnalogMan
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