Frequency response

FREQUENCY RESPONSE

Dr. Ir. Bambang Sujanarko, M.M.

Teknik Elektro Universitas Jember

CircuitV or i

Frequency variation

Gain and phase changed, etc

Transfer Function

numerator

denominator

The Decibel ScaleFrequency Response drawn using Bode plots. The Bode plots are based on logarithms, so it is important to keep the following properties of logarithms :

Gain in the Bode Plots, use Decibel scale and usually remark as GdB

Bode Plots

Seven types of different factors that can appear in various combinations in a transfer function.

1. Gain K

2.

<< w1/T

>> 1/w T

3.

3.

<< wwo

>> wwo

w high

Series Resonance

Parallel Resonance

Passive Filters

Lowpass Filter

Highpass Filter

Bandpass Filter

Bandstop /Bandreject/ Notch Filter

Active Filters

Active filters consist of combinations of resistors, capacitors, andop amps.

Computation Using MATLAB

14.1614.1814.2914.3914.5014.53

Problem :