1 © unitec new zealand de4401 ac r l c components

1© Unitec New Zealand

DE4401AC

R L C COMPONENTS

Pure Resistance Circuit

2© Unitec New Zealand

AC Voltage + Current in Resistor

3© Unitec New Zealand

Resistance Phasor

4© Unitec New Zealand

Pure Capacitor Circuit

5© Unitec New Zealand

Vc “LAGS” Ic in Capacitor

6© Unitec New Zealand

Capacitance Phasor

7© Unitec New Zealand

Capacitive Reactance- less as f increases

8© Unitec New Zealand

Capacitive Reactance

9© Unitec New Zealand

RC Series

10© Unitec New Zealand

RC Series Phasor and Impedance

11© Unitec New Zealand

RC series Voltage Divider

12© Unitec New Zealand

RC LowPass Filter

13© Unitec New Zealand

RC LowPass Frequency Response

14© Unitec New Zealand

Inductors oppose change in CURRENT

• Capacitors oppose change in VOLTAGE

15© Unitec New Zealand

Inductive Reactance- bigger as f increase

16© Unitec New Zealand

Inductance (L) Phasor- “LEADS”

17© Unitec New Zealand

R L Series connection

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RL Impedance Triangle

19© Unitec New Zealand

R L C series - Current is common Ref

20© Unitec New Zealand

R L C phase relationships

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R L C Phasors

22© Unitec New Zealand

Impedance Equation –RLC series circuits

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R L C parallel circuits-Now V is Ref

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RLC Parallel

25© Unitec New Zealand