amplifier basic

228

02:21:40

npn circuit

published 7 years ago

sshsslfun

7 years ago

This isn't set up properly. And why the capacitor????

diego92

7 years ago

@sshsslfun whrere it is the fail? i am not expert :)

crake

7 years ago

Start with DC bias of a bjt then look into bjt small signal model.

crake

7 years ago

http://everycircuit.com/circuit/5019966666702848

crake

7 years ago

http://everycircuit.com/circuit/4651826313166848

caveman42

7 years ago

I'm just getting back into electronics after 20 years so Im sorry if Im completely off base. It looks like you are converting an ac signal to a dc pwm signal. Am I mistaken about that?

sshsslfun

7 years ago

Not PWM, but square wave, they're easy to confuse sometimes. Follow what crake says. I'll upload some sort of guide on NPN Common Emitter amplifiers

caveman42

7 years ago

Please do! I built a couple of car audio amps when I was in highschool but that was many many moons ago and Ive forgotten almost everything.

caveman42

7 years ago

Google is failing me, trying to look up the differerence between pwm and a square wave. Wikipedia is saying that a square wave is a type of pulse wave, but pulse waves can come in other flavors as well. So, I must he dense because Im not understanding the difference

sshsslfun

7 years ago

http://everycircuit.com/circuit/4911452120154112

sshsslfun

7 years ago

Check that link out

kiani

7 years ago

@diego. What are you doing! It's all gone non linear,, btw how is the cat 😻.

kiani

7 years ago

@caveman42.. From one cavenan ti another. I think. Pulse as the name suggests is only one. But square wave is pulse train,, and pwm. Is a cct. That enable you to change the on and off ratio of a square wave without changing the frequency.. Btw i don't accept ressponsibility fir the correctness of what i have told you. Check it out.

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