Home     Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
   
 Home     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   

Author Topic: Two amplifiers connected in series  (Read 5858 times)

0 Members and 1 Guest are viewing this topic.

FrED

  • Guest
Two amplifiers connected in series
« on: March 07, 2008, 06:49:40 AM »
This is a question that came up to me when i was studing some things for amplifiers.

I read that if you connect two transistor amplifiers in series, the total power you get is the multiplication of these two. For example, if you have a transistor that ampifies 10 times and another transistor that amplifies another 10 times, connecting them together gives you an amplification of 100!

Is it so easy to have amplification power?

kam

  • Administrator
  • Hero Member
  • *****
  • Posts: 1849
Re: Two amplifiers connected in series
« Reply #1 on: March 07, 2008, 16:30:39 PM »
Yes actually you are right. Amplification is multiplied. But if you connect an allready amplified signal to an improper transistor, all you will get is a very loud noise.

There are limitations in transistor amplificaion gain and input. These limitations unfortunately makes a HiFi amplifier so hard to make. :(

FrED

  • Guest
Re: Two amplifiers connected in series
« Reply #2 on: March 07, 2008, 18:41:37 PM »
And what about OP-Amps?

kam

  • Administrator
  • Hero Member
  • *****
  • Posts: 1849
Re: Two amplifiers connected in series
« Reply #3 on: March 09, 2008, 22:33:47 PM »
Rules are rules and laws are laws. Otherwise, why do you think people give a shitload of money for 200-300 or 400watts Hi-Fi amps?

Andre

  • Guest
Re: Two amplifiers connected in series
« Reply #4 on: March 11, 2008, 07:56:31 AM »
Imagine, 10 transistor connected in series, 1000 Watts! WOW

ScubaCap

  • Guest
Re: Two amplifiers connected in series
« Reply #5 on: March 13, 2008, 00:20:06 AM »
Lol  ;D

Nice example man!

FrED

  • Guest
Re: Two amplifiers connected in series
« Reply #6 on: March 22, 2008, 02:27:15 AM »
ok ok i got the point.