Electronics Fundamentals/Electronic Filter/High Pass Filter

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CR High Pass Filter[edit]

Configuration[edit]

High pass filter.svg

Characteristics[edit]

\frac{V_o}{V_i} = \frac{R}{R + \frac{1}{j\omega C}} = \frac{j\omega T}{1 + j\omega T}
T = RC
\omega_o = \frac{1}{T} = \frac{1}{RC}
High-pass filter.png

RL High Pass Filter[edit]

Configuration[edit]

Characteristics[edit]

\frac{V_o}{V_i} = \frac{R}{R + \frac{1}{j\omega C}} = \frac{j \omega T}{1 + j\omega T}
T = \frac{L}{R}
\omega_o = \frac{1}{T} = \frac{1}{RC}

Summary[edit]

High Pass Filter has stable voltage which does not change with frequency over a range of high frequency . High Pass Filter can be constructed from CR or RL network