Timeline for How to make amplifier (almost) Beta independent?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 27, 2017 at 14:15 | comment | added | G36 | If you disconnect the Q1 base or remove the input signal source. Q1 will be cut-off and Q2 will be fully ON. Hence Q4 is OFF. And Q7 will be in saturation and the output voltage will reach positive saturation voltage Vout_max = Vcc - 0.2V - 2Vbe. No crossover distortion will occur. | |
| Nov 27, 2017 at 13:57 | comment | added | lucenzo97 | Ok, I get the degeneration thing but why isn't the base of Q1 biased to set Q point of operation? If it is not set then the crossover distortion occurs and amplifier wouldn't work properly. | |
| Nov 26, 2017 at 21:46 | history | answered | Marko Buršič | CC BY-SA 3.0 |