CONCEPTUAL TOOLS |
By: Neil E. Cotter |
Filters |
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RLC band-pass filters |
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Gallery |
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Tool: The RLC circuits shown below act as two-pole band-pass filters.
Series or parallel LC: (resonant frequency; zL = -zC)
(lower cutoff frequency)
(higher cutoff frequency)
Series LC: Parallel LC:
Fig. 1. Series LC band-pass filter. Fig. 2. Parallel LC band-pass filter.
Tool: The RLC circuits shown below act as two-pole band-reject filters.
Series or parallel LC: (resonant frequency; zL = -zC)
(lower cutoff frequency)
(higher cutoff frequency)
Series LC: Parallel LC:
Fig. 1. Series LC band-reject filter. Fig. 2. Parallel LC band-reject filter.