RC/LC filter network for signal conditioning in electronic circuits
Commonly used trade names and technical identifiers for Filter Network (RC/LC).
This component is used in the following industrial products
Electronic circuitry that processes raw signals from optical sensors to prepare them for further analysis or conversion.
Electronic circuit that prepares raw sensor signals for processing by industrial control systems
Electronic circuit that conditions, filters, amplifies, or converts raw sensor signals into usable data formats.
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RC filters use resistors and capacitors, are simpler and cheaper, but have gradual roll-off (20dB/decade). LC filters use inductors and capacitors, provide sharper cutoff (40dB/decade), but are larger, more expensive, and may have resonance issues.
Determine the highest frequency needed in your signal (for low-pass) or lowest frequency to block (for high-pass). Add 20-50% margin. For sensor signals, typical cutoff is 10-100x the signal frequency to remove switching noise while preserving signal integrity.
Standard filters handle up to 50-100V. For higher voltages (220V AC lines), use specially rated components with proper creepage distances and voltage derating (50% of rated voltage for reliability).
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