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Coupling Capcitor
What is the purpose of coupling capacitor?



  
Total Answers and Comments: 1 Last Update: February 16, 2008     Asked by: chinnakalupukuri 
  
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 Best Rated Answer
Submitted by: capricious
 

Because capacitors pass AC but block DC signals (when charged up to the applied dc voltage), they are often used to separate the AC and DC components of a signal. This method is known as AC coupling or "capacitive coupling". Here, a large value of capacitance, whose value need not be accurately controlled, but whose reactance is small at the signal frequency, is employed.



Above answer was rated as good by the following members:
vinay264
February 16, 2008 10:41:24   #1  
capricious Member Since: February 2008   Contribution: 2    

RE: Coupling Capcitor

Because capacitors pass AC but block DC signals (when charged up to the applied dc voltage), they are often used to separate the AC and DC components of a signal. This method is known as AC coupling or "capacitive coupling". Here, a large value of capacitance, whose value need not be accurately controlled, but whose reactance is small at the signal frequency, is employed.


 
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What is the purpose of coupling capacitor? 
Latest Answer : Because capacitors pass AC but block DC signals (when charged up to the applied dc voltage), they are often used to separate the AC and DC components of a signal. This method is known as AC coupling or "capacitive coupling". Here, a large value ...


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