chapter33_2

chapter33_2 - Review on R , L , C and RLC in AC circuits An...

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Unformatted text preview: Review on R , L , C and RLC in AC circuits An AC power source is a sinusoidal voltage source which is described as ( 29 max v V sin t ∆ ∆ ϖ = v ∆ max V ∆ We study the current i as a function of time when a resistor, inductor, capacitor or the serial connection of the three, to the AC voltage source. ( 29 i t When resistance is involved, Laws to apply Current i Phase w/ Phasor diag. Power R Ohm’s Law In phase or L Kirchhoff’s Loop leads, or No power is consumed. C Kirchhoff’s Loop leads, or No power is consumed. RLC Kirchhoff’s Loop To be discussed today ( 29 max v V sin t ∆ ∆ ϖ = v ∆ ( 29 max i I sin t ϖ = φ = av rms rms p V I ∆ = 2 max rms V V ∆ ∆ = 2 max rms I I = max max V I R ∆ = ( 29 2 max i I sin t π ϖ =- max max L L V I ,X L X ∆ ϖ = = 2 π φ = v ∆ ( 29 2 max i I sin t π ϖ = + 1 max max C C V I ,X X C ∆ ϖ = = i 2 π φ = - Assuming AC voltage source: ( 29 max i I sin t ϖ φ =- ( 29 2 2 L C Z R X X = +- L C X X tan R φ- = max max V I Z ∆ = Power discussion of...
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This note was uploaded on 05/06/2008 for the course PHYS 1304 taught by Professor Ye during the Spring '08 term at SMU.

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chapter33_2 - Review on R , L , C and RLC in AC circuits An...

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