Timeline for Two Stage Amplifier Circuit Analysis Q
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 24, 2017 at 18:18 | vote | accept | Tyler | ||
| Sep 24, 2017 at 17:50 | comment | added | Bimpelrekkie | after the dc bias has been set, correct? To be able to determine the small signal gain you must first determine the DC bias point = dc bias. Does the 1k resistor influence the DC solution? I think it does. So yes, it has to be considered for the DC solution. Stop seeing voltage dividers everywhere. The voltage across the 1k resistor is determined by using Ohm's Law. But ignore it first, assume it is a short. Then determine how much current flows through that point. Then you know roughly how much voltage is dropped, then recalculate including that drop. Gain will not change much though, | |
| Sep 24, 2017 at 16:28 | comment | added | Tyler | Thanks for your answer. When you say only the 6.8k resistor matters for the gain, I think you mean after the dc bias has been set, correct? And I think the 1k resistor impacts the dc biasing by acting as a voltage divider. Is that correct? | |
| Sep 24, 2017 at 16:04 | history | answered | Bimpelrekkie | CC BY-SA 3.0 |