New answers tagged stability
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Finding pole by inspection in second order circuit
Here's a couple examples of how to do it graphically. Sorry for the low quality image.
In the second example, the pole is the intersection of \$\frac{1}{sC_2}\$ and a resistive section with magnitude ...
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2
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Accepted
Is a big open-loop phase margin of an op-amp always better for system stability?
A larger phase margin will give you more loop stability. That is good if stability is what you are after - absence of ringing, tolerance to large changes in dynamics of the components.
Sometimes, ...
- 171k
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What is the working justification of this circuit?
For crystal oscillators, TRANsient response is very tedious because high crystal Q means very long simulation runs. The merit of transient simulations is seeing what non-linear transistor effects ...
- 27.1k
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What is the working justification of this circuit?
Made with microcap v12.
The circuit have a Nyquist plot which can give gain and phase margin.
Here is the picture of this behavior.
A "enlarged" picture shows the "gain" and "...
- 15k
4
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Input Impedance of a converter and output impedance of battery
Well, we can simulate it pretty easily by inputting the functions.
First, the input current. I'm using a regulated buck curve for stability reasons. That is, a curve like so:
Consider a circuit ...
- 43.7k
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Propagation delay stability
Propagation delay is different from chip to chip. One piece can have 260ps, another one 300ps. Stability of single chip propagation delay will be temperature dependent.
- 504
2
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Accepted
Unwanted sawtooth on LDO output
The rise time on V1P8ADC is around 10µs, with dV=0.8V and 10µF cap on the output (and probably other decoupling caps) we have i=C dv/dt = 0.8A.
So the LDO is dumping a lot more current than it is ...
- 80.3k
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