Current Gain - BJT Amplifiers

Thread Starter

aac044210

Joined Nov 19, 2019
115
Hi

I have a question wrt calculating current gain with a bjt amplifier.
Is this correct?

Ai (No Load) = ic / signal current

Ai (With Load) = iRL / signal current

Thanks,

aac
 

Audioguru again

Joined Oct 21, 2019
674
A bjt is usually in a circuit that has a schematic and parts list that you did not show. it has a certain power supply voltage.
The transistor can have a DC current gain called hFE and it can have an AC signal current gain called hfe.
Without seeing your schematic, parts list, voltage and what you want then we do not know what you are talking about.
 

Thread Starter

aac044210

Joined Nov 19, 2019
115
A bjt is usually in a circuit that has a schematic and parts list that you did not show. it has a certain power supply voltage.
The transistor can have a DC current gain called hFE and it can have an AC signal current gain called hfe.
Without seeing your schematic, parts list, voltage and what you want then we do not know what you are talking about.
No current gain without load! Could be voltage amplification.
Thanks AG!
 
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