Electronics Handbook/Circuits/High-pass Filter

High Pass Filter

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Circuit has stable voltage at High Frequency and increasing voltage at Low Frequency

RC Configuration

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Vo / Vi

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T = RC

Frequency Response

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ω = 0 ω =   ω = 00
     

Circuit has stable voltage at High Frequency and increasing voltage at Low Frequency

 

RL Configuration

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Vo/Vi

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  .
 

Frequency Response

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ω = 0   ω = 00
     

Circuit has stable voltage at High Frequency and increasing voltage at Low Frequency .

 

Summary

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  • High Pass Filter Circuit has stable voltage at High Frequency and increasing voltage at Low Frequency
  • High Pass Filter can be constructed from RC or RL
  • High Pass Filter has a general formula
 
T = RC = R / L
  • Angle Difference Tan θ = j ω T