I designed and built the following CE amplifier.
DC operating point:
Measured VCE = 2.382Vdc.
Measured VBE = 0.6Vdc.
Small signal data:
Measured input: vin = 10.2mVpeak
Measured output: vout = 0.955Vpeak.
=> voltage amplification of -93.6 (there was a 180 phase between input and output, as expected).
I have several questions pleaes:
1. Could you please tell me your opinion about my design? how would you improve it?
I'm a bit worried that i had to use such a large RBASE (it took the capacitor long time to charge).
I chose such large a resistor since for that value, Vout was around 2.5V, which was my goal in order to receive a large output voltage swing.
2. Is there any way to derive β from my measurements?
3. Is it possible to connect a speaker to the vout node (from the Collector to Ground) and hear the sound which the signal generator (input) creates?
Would it work?
Thank you very much!
DC operating point:
Measured VCE = 2.382Vdc.
Measured VBE = 0.6Vdc.
Small signal data:
Measured input: vin = 10.2mVpeak
Measured output: vout = 0.955Vpeak.
=> voltage amplification of -93.6 (there was a 180 phase between input and output, as expected).
I have several questions pleaes:
1. Could you please tell me your opinion about my design? how would you improve it?
I'm a bit worried that i had to use such a large RBASE (it took the capacitor long time to charge).
I chose such large a resistor since for that value, Vout was around 2.5V, which was my goal in order to receive a large output voltage swing.
2. Is there any way to derive β from my measurements?
3. Is it possible to connect a speaker to the vout node (from the Collector to Ground) and hear the sound which the signal generator (input) creates?
Would it work?
Thank you very much!
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