Tagged Questions
5
votes
5answers
273 views
Stability problem in unity-gain opAmp
As a part of a controlled power supply for hardware-in-loop testing for a student driven project, I had to develop a current buffer (voltage follower) which could source up to 1 A.
I had the (bad) ...
2
votes
1answer
154 views
How can you guarantee stability of an inverting opamp configuration amplifier?
I had to design a circuit for measuring the voltage of a negative power supply rail (-15 V) and feeding it into a ADC (0-3 V DC-coupled input range). This measurement is only used for diagnostics and ...
1
vote
1answer
146 views
What does it mean for amplifiers to be stable only down to N gain, where N > unity?
This is related to
What's special about "unity-gain stable"?
which is about unity gain stability.
But what exactly does it mean if some op-amp is said to be only stable to, say, gain ...
6
votes
4answers
507 views
Does this voltage regulator use “on-off” control, or is it a voltage follower?
In Electronics A2 (GCE), we are currently studying voltage regulators.
An example voltage regulator circuit is provided using an op-amp and a power MOSFET.
I would judge this to be a voltage ...
3
votes
1answer
259 views
OP07 unity gain
Is an OP07 unity gain stable ? I am powering it with a +/- 5V supply. I am using it to buffer a DC signal which varies slowly.
Most of the modern Op-amps have their datasheets mentioning them ...
2
votes
2answers
406 views
Op-amps and Capacitive Loads
I understand that having an capacitive load at the output of an op-amp can potentially make the circuit unstable. However, how can I go about calculating this?
For instance, I'm trying to design a ...
