Timeline for Why does the small signal analysis work? (Intuition)
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 8, 2019 at 5:33 | vote | accept | Aravindh Vasu | ||
| Apr 8, 2019 at 5:09 | comment | added | Aravindh Vasu | I get the fact that we are linearly approximating a device , but I just cant digest(reason) vanishing the source. | |
| Apr 8, 2019 at 5:07 | comment | added | Aravindh Vasu | Okay, is there a non-mathematical explanation for shorting voltage source during small signal analysis? | |
| Apr 8, 2019 at 5:05 | comment | added | The Photon | @AravindhVasu, the small signal equivalent of a linear resistor is just the same resistor. But the small signal equivalent of a nonlinear resistor (for example, a PN-junction diode considered in the low-frequency limit) is a different resistor at every operating point. | |
| Apr 8, 2019 at 4:35 | comment | added | Aravindh Vasu | So, do you say that the DC source is removed to apply superposition? Wait, the small signal model of a resistor is simply the resistor itself because the resistor produces a corresponding voltage drop during the small wiggle, similarly wouldn't the Voltage source be unaltered during the 'wiggle'? | |
| Apr 8, 2019 at 4:30 | history | answered | jramsay42 | CC BY-SA 4.0 |