FeedbackSubtracting operational amplifier circuit |
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Diagram
Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Inverting subtracter = feedback, based on the IdealizedOpAmpLimited model.
vOut = -k*(vIn1 - vIn2)
Parameters (6)
| Vps |
Value: +15 Type: Voltage (V) Description: Positive supply |
|---|---|
| Vns |
Value: -15 Type: Voltage (V) Description: Negative supply |
| V0 |
Value: 15000.0 Type: Real Description: No-load amplification |
| k |
Value: 1 Type: Real Description: Desired amplification |
| R1 |
Value: 1000 Type: Resistance (Ω) Description: Resistance at inputs of OpAmp |
| R3 |
Value: R1 / k Type: Resistance (Ω) Description: Calculated resistance to reach desired amplification k |
Connectors (5)
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p1 |
Type: PositivePin Description: Positive electrical pin of port 1 |
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n1 |
Type: NegativePin Description: Negative electrical pin of port 1 |
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p2 |
Type: PositivePin Description: Positive electrical pin of port 2 |
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n2 |
Type: NegativePin Description: Negative electrical pin of port 2 |
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p1_2 |
Type: PositivePin Description: Positive electrical pin 1.2 |
Components (5)
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opAmp |
Type: IdealizedOpAmpLimited |
|---|---|---|
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r1 |
Type: Resistor |
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r2 |
Type: Resistor |
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r3 |
Type: Resistor |
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r4 |
Type: Resistor |
Used in Examples (2)
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Modelica.Electrical.Analog.Examples.OpAmps Inverting subtracter |
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Modelica.Electrical.Analog.Examples.OpAmps Control circuit |