Questions tagged [stable]

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1answer
93 views

Stable state and don't care

I have a latch but I can't understand what are the meaning of Un/Stable state and ...
-1
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1answer
114 views

Ultra Stable Current Source At Up To 2 A [closed]

Can anyone suggest circuit(s) that can produce a very stable current source, preferably trimmable to close to 1 or 2 amps? Stability is the main requirement, all help is greatly appreciated. I have ...
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2answers
93 views

Does the stability of an LTI system depend on the input?

Consider a system \$G(s) = \frac{1}{s}\$. It is marginally stable, as it has its only pole at \$s=0\$. However, if we apply a step input, the output is \$ tu(t) \$, which turns out to be unstable. ...
1
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1answer
395 views

Example of stable non minimum phase system with negative gain or phase margin

I read in a particular book that the fact that gain margin and phase margin are positive implies stability is only true for minimum phase systems. But, for non-minimum phase systems, system can be ...
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4answers
472 views

why is the feedback or gate resistance RG necessary?

Here the large feedback resistance RG interposed between gate and drain of the NMOS (usually in the megohm range) forces the dc voltage at the gate to be equal to that at the drain (because IG = 0). ...
1
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0answers
50 views

Noise in opamp amplifiying circuit which can be removed by short-circuiting VDDA and GNDA?

I have built a filtering and amplifying circuit for an ultrasonic receiving channel. The schematic is shown as below. The +3.3V is the power supply of a microcontroller. It amplifies the receiving ...
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1answer
69 views

DC Voltage stabiliser

I have a fluctuating DC voltage in the range 8.5-9.5V coming out from an adapter. How can I convert it to a stable 9V?
0
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1answer
2k views

How to determine if this filter is stable

Hi I have a filter which has the following transfer function: H(z) = (z^2 + 0.04)/(z^2 + 3.24) for which i need to determine whether this is stable or not. I'm not sure how to attempt this, but I'm ...
-1
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2answers
123 views

Capacitors - аffected by temperature or not? [duplicate]

Are these capacitors аffected by the temperature changing or not? http://www.cde.com/resources/catalogs/TAS.pdf
1
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1answer
1k views

Tactics for stable unity-gain op-amp

The circuit given below is typical pH meter op-amp circuit. But here LMC6001 is not configured as unity gain. My question is this, I want to make this circuit with unity-gain buffer op-amp. What ...
-1
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1answer
414 views

Ultra stable 5V supply

For a project where I'm using (very expensive) LED matrix, I need to power them with a 5V 1A power supply. At the moment I'm using a cheap wall plug switching supply, but I already know those things ...
2
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3answers
928 views

Generating various reference voltages in a circuit

How does one go about accurately setting reference voltages at various points in a given circuit (e.g. various threshold voltages). Obviously we can have a potential divider from the main power supply ...