The requirements are a minimum of 8W RMS power to 8Ω speakers with a maximum of 1% second harmonic distortion and 0.2% third harmonic distortion. Single chip integrated IC amplifiers are not allowed. BJT and MOSFETs in class A, AB, D or circlotron topology are recommended.
For the amplifier I tried building the EXACT circuit on this circuit. But apparently the signal got de-amplified instead of amplifying.http://hackaweek.com/hacks/?p=332
I think I probably need to change my resistor, capacitor values but not sure what value exactly I should choose. ALso need to change the PNP and NPN transistor as well as I think that might be the reason I am not getting desired output.
Can anyone help me in deciding what kind of set of resistors, capacitors, diodes and transistors I need as per my requirements?
Mod edit: One thread is enough, keep it on the other thread in the homework section.
For the amplifier I tried building the EXACT circuit on this circuit. But apparently the signal got de-amplified instead of amplifying.http://hackaweek.com/hacks/?p=332
I think I probably need to change my resistor, capacitor values but not sure what value exactly I should choose. ALso need to change the PNP and NPN transistor as well as I think that might be the reason I am not getting desired output.
Can anyone help me in deciding what kind of set of resistors, capacitors, diodes and transistors I need as per my requirements?
Mod edit: One thread is enough, keep it on the other thread in the homework section.
Last edited by a moderator: