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Results tagged with operational-amplifier
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user 35762
Questions relating to the construction and applications of operational amplifiers, which are DC-coupled, high-gain electronic voltage amplifiers with a differential input and, usually, a single-ended output.
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Op-Amp working principle
In the op-amp working principle I was told that if I have a certain input voltage at the non inverting pin, then the inverting pin will also be forced to have that voltage and hence if I attach a feed …
- 666
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3
answers
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Dependence of output voltages of an op-amp on rail voltages
I want to use an op-amp as an inverting amplifier to convert negative voltages to positive voltages,
simulate this circuit – Schematic created using CircuitLab
If my input varies from 0 to -5 …
- 666
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1
answer
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Analyzing Opamp circuits
I was asked to analyze this Op-amp circuit and I need a little bit of advice about it. I have presented my analysis about the circuit, kindly correct me wherever I am going wrong.
simulate this …
- 666
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Drawing a Circuit from a transfer function
In accordance to what gsills said I will just go ahead and make the diagram for you, Think about this circuit. I will not specify the values of the Resistors and the capacitors.
simulate this c …
- 666
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transistor level design of Op-amps
How do we realize the design of a simple Op-amp with Bipolar Junction Transistors or MOS Field Effect Transistors alone? I mean I understand the need for differential amplifiers for providing a differ …
- 666
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votes
1
answer
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Transducing a changing capacitance
I have a capacitor C which changes with time. Now I want to measure the varying capacitance as a voltage function, so I need to design a circuit for that. My motivation around the problem is that, I w …
- 666
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Questions on Operational Amplifiers
If I understood your question well, in a voltage divider
simulate this circuit – Schematic created using CircuitLab
The output voltage Vout=Vin(R1/(R1+R2)). Thus the gain=1/(1+R2/R1)<1. But fo …
- 666
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1
answer
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Circuit for amplification and protection against input inductive spikes
I'm working on a permeability measurement project and my setup includes a primary as well as a secondary side of a coil. I need to measure the flux through the coil, hence on my secondary side I have …
- 666
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Amplifying a 100mV range (sinosoidal wave) to a range of 0 - 3.3V for the Arduino
simulate this circuit – Schematic created using CircuitLab
This simple circuit should work. The first stage should amplify the input voltage two times and also translate the input to 0-400mV ra …
- 666
0
votes
1
answer
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eliminitaing spikes from the circuit input
Suppose I have a circuit which gets damaged for spikes and high voltages, so that I need to eliminate spikes and high voltages beyond a maximum value, so I have decided for the following two configura …
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