# Questions tagged [stable]

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### Stable state and don't care

I have a latch but I can't understand what are the meaning of Un/Stable state and ...
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 ...
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. ...
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 ...
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). ...
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 ...
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?
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 ...
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
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 ...