All Questions
Tagged with compensation circuit-analysis
8 questions
0
votes
1
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65
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Movement Sensor circuit
I have this PIR sensor circuit, can someone explain what each of the capacitors do in the circuit?
- 23
2
votes
0
answers
606
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Trying to perform transient frequency response with LTspice or Microcap, TL494 compensation
I have tried to do Bode plot of my uncompensated plant by myself in LTspice 17.1, but the result looks strange to me. This topic is a follow-on to this one.. I have no clue why it comes with 290 ...
- 135
2
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1
answer
236
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Why is it easier to make a boost converter stable by feeding back a very small amount of output?
The image below is about peak current mode control for a boost converter. Someone said that it's easier to make it stable by feedback a very small of output like 1/10 Vout (or R2 << R1). ...
- 698
4
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2
answers
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Why does overshooting occur when probe's adjustable capacitor is under-value
I can't wrap my head around how overshooting (the spike) happens when the 10X probe capacitor trimmer (Cp) is under-tuned (i.e. adjustable capacitor's value is not high enough). There are countless of ...
- 1,448
2
votes
1
answer
223
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fast analytical technique identifying poles/zeros using degree of freedom
I encounter some engineers who can quickly spot poles and zeros in the circuit by identifying "degree of freedom". For example, a typical technical discussion goes like : "a miller ...
- 409
1
vote
1
answer
120
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Stability of SMPS designed for a motherboard
Many books have covered the stability of many configurations of switch mode power supplies and they have given details on how to set the poles and the zeros of the compensator to make the the power ...
- 1,078
0
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1
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2k
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Intuitive to get pole and zero points for lead compensator
The circuit below is a lead compensator. I can easily know exact the pole and zero of the network by deriving the transfer function. However, I am wondering if there is an intuitive method to get the ...
- 1,661
2
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3
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Intuitive way to see pole/zero directly from schematic
The image below is the electrical configuration and the transfer function of a type II compensator using OTA.
By looking at the transfer function, we can easily see that the circuit has two poles (...
- 1,661