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Ultra fast switch

 
 
Reply Sun 10 Jan, 2016 03:17 am
How to make a switch;using transistors to swich between two signals to be amplified in next stage ....
so that the 2 inputs should be turned on and off millions of times a second ..
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Type: Question • Score: 3 • Views: 792 • Replies: 14
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dalehileman
 
  1  
Reply Sun 10 Jan, 2016 12:38 pm
@khadymmyr,
Hang in there Khad, I'm sure there are dozens of discrete semis that meet your need, probly all called some sort of electronic switch. Have you Googled yet
0 Replies
 
oralloy
 
  1  
Reply Mon 11 Jan, 2016 02:09 am
@khadymmyr,
Is someone building an A-bomb in their back yard? Mr. Green
dalehileman
 
  1  
Reply Tue 12 Jan, 2016 11:56 am
@oralloy,
Ora, forgive an old guy and no offense, but.....
0 Replies
 
timur
 
  1  
Reply Tue 12 Jan, 2016 12:19 pm
An A-bomb would need a lot more than a simple multivibrator and a Mosfet switch..
dalehileman
 
  1  
Reply Tue 12 Jan, 2016 02:13 pm
@timur,
One might think so, might'n't one Tim
So let's hope Ora elucidates
oralloy
 
  1  
Reply Thu 14 Jan, 2016 12:08 am
@dalehileman,
What else would someone use ultra-high-speed switches for?
cicerone imposter
 
  1  
Reply Thu 14 Jan, 2016 12:13 am
@khadymmyr,
I don't have a background in electricity or physics, but it seems electric current doesn't travel that fast. Also, the metal used has different current speed.
0 Replies
 
dalehileman
 
  1  
Reply Thu 14 Jan, 2016 11:41 am
@oralloy,
Quote:
What else
Ora such a semiconductor device has hundreds if not thousands of apps. Perhaps it's that we don't understand your q
oralloy
 
  1  
Reply Thu 14 Jan, 2016 11:32 pm
@dalehileman,
Is it possible for a semiconductor to attain such high switching speeds?

What are some of these alternative applications for ultra-high-speed switches?
timur
 
  1  
Reply Fri 15 Jan, 2016 06:45 am
A few tens of millions switching times per second (MHz) cannot even be considered ultra high speed.

Consider that we have current technology devices that switch billions of times per second (GHz).

Fast or ultra fast switches are used in uncountable types of electronic devices, from cellphones to radars..

As for the OP question, Google is full of drawings of such switches, mostly Mosfet ones.
0 Replies
 
dalehileman
 
  1  
Reply Fri 15 Jan, 2016 12:00 pm
@oralloy,
Quote:
Is it possible for a semiconductor to attain such high switching speeds?
Oh hell yes

Quote:
What are some of these alternative applications
Well gee Ora, suppose you wanted to meld two different images. Tim, Eng, if you'd name five or ten more...
0 Replies
 
khadymmyr
 
  1  
Reply Fri 19 Feb, 2016 01:52 am
I need such a switch for bidirectional amplifiers such as ...
wi fi repeaters or to build my own small communication system.....but unlike walkie talkies we should be able to send signals from both sides at a time thats why i need fast switching.....But i dont want to buy one I want to make it my self ... coz i am a learner ...


I am a graduation (B sc.) student. And we are given practicles not more then Amplifiers, Om-Amp applications etc in our college.
dalehileman
 
  1  
Reply Fri 19 Feb, 2016 11:03 am
@khadymmyr,
Again Khad, have you tried Googling where I'm sure you'll find pertinent schematics
0 Replies
 
khadymmyr
 
  1  
Reply Tue 23 Feb, 2016 11:40 pm
Okay I will google it !
0 Replies
 
 

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