1© Unitec New Zealand

DE4401AC

R L C COMPONENTS

Pure Resistance Circuit

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AC Voltage + Current in Resistor

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Resistance Phasor

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Pure Capacitor Circuit

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Vc “LAGS” Ic in Capacitor

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Capacitance Phasor

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Capacitive Reactance- less as f increases

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Capacitive Reactance

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RC Series

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RC Series Phasor and Impedance

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RC series Voltage Divider

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RC LowPass Filter

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RC LowPass Frequency Response

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Inductors oppose change in CURRENT

• Capacitors oppose change in VOLTAGE

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Inductive Reactance- bigger as f increase

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Inductance (L) Phasor- “LEADS”

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R L Series connection

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RL Impedance Triangle

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R L C series - Current is common Ref

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R L C phase relationships

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R L C Phasors

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Impedance Equation –RLC series circuits

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R L C parallel circuits-Now V is Ref

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RLC Parallel

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