# Questions tagged [pole-compensation]

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### Does pole-splitting narrow or widen the bandwidth?

Razavi gives the answer of why the compensation capacitor should not be placed between the gate and drain of M3 transistor. Below are the quotations of his question and answer: Question: Explain why, ...
• 113
314 views

### 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 ...
• 324
247 views

### 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. ...
1 vote
564 views

### 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 ...
• 31
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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 ...
• 440
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### Pole zero cancellation amplifier circuit

I've built the circuit which looks like this: At the input comes pulses from 30 volts biased photodiode. After adding parallel 4.7 nF and 10kΩ for pole zero cancellation everything works fine, in AC ...
215 views

### How to find the value of capacitor in a compensated attenuator?

I am learning about compensated attenuators and I do not understand the way that the book suggests to create CF. Is there a link or an image about the way that the book recommends to find the value ...
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1 vote
174 views

### 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 ...
• 3,536
838 views

### 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-...
• 41
1k views

### Understanding Electric Distribution Pole Anatomy

Can you please take a look at these two overhead distribution pole images (US and Canada) and let me know what are the 1,2,3, and 4 wires in each images? Can you also let me know what is main ...
• 103
1 vote
225 views

### 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 ...
• 440
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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?
271 views

### Understanding type III compensation network for Buck-Boost DC/DC converter

I'm trying to design a circuit based on Linear Technology's LTC3533 Buck-Boost DC/DC Converter for my own project. One of the last things I have left to do is to calculate the feedback loop ...
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1 vote
80 views

### 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!
• 25
1 vote
251 views

### 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 ...
• 309
3k views

### voltage to current converter using op-amp and MOS

I came across voltage to current (V2I) converter circuit. and I found Iout=Vin/R1. I have a few questions about it: I believe the op-amp is in the negative configuration because v(3) & v(2) both ...
737 views

### Type-III Compensator design for Half-Bridge DC-DC converter control [closed]

Can anybody guide/share some technical documents which can help me to design type-III compensator for DC-DC Half-bridge?
134 views

### How to determine these resistors in 2-pole 2-zero feedback loop compensation

I'm trying to build a 2-pole 2-zero feedback loop compensation for controlling a full bridge dc-dc converter. It's my first time doing this and I'm following the book power supply cookbook. Book is ...
• 319
403 views

### Does any practical RC circuitry exist which will perfectly cancel out a pole?

Firstly, some basic theory…. The transfer function of a simple low pass filter is:- This transfer function has one pole. The gain goes from 1 to almost zero as frequency increases and the phase goes ...
2k views

### 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/...
1k views

### Negative feedback and op-amp poles

I'm trying to get a better understanding of frequency compensation for op-amps. I'll start off with a very specific questions and then get into the context. For a certain op-amp, open loop gain is ...
• 15
973 views

### 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. ...
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### 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$^{th}$...
• 1,191
1 vote
351 views

### -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 ...
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### VFA vs. CFA Compensation Capacitor Comparation

Here, I am referring to voltage-feedback amplifier (VFA) and current-feedback amplifier (CFA). A basic schematic is given below for each. I.) VFA II.) CFA I am curious about the position of ...
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1 vote
2k views

### Poles and Zeros of Two Pole Compensation

I am known with the basics of what poles and zeros of transfer function are and how to determine them, but I certainly don't know how to apply such poles and zeros to the gain curve, which describes ...
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