12.07.2015 Views

Capacitor and Inductor

Capacitor and Inductor

Capacitor and Inductor

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ตัวเหนี่ยวนํา6-36• ตัวเหนี่ยวนําตอขนานกัน» KCLi 1i 2i Nii L 1L 2L v ivNL eqvi= i + i + +i1 2 N⎧ 1 t ⎫ ⎧ 1 t ⎫ ⎧1 t⎫it ( ) = ⎪⎨ vtdt () + i1( t) ⎪o ⎬+ ⎪⎨ vtdt () + i2( t) ⎪o ⎬+ + ⎪⎨ vtdt () + iN( to)⎪⎬L∫to to to1 L∫ 2 L∫⎪⎩ ⎪⎭ ⎪⎩ ⎪⎭ ⎪⎩ N⎪⎭⎛ 1 1 1 ⎞ t= + + + vtdt ( ) + { i1( to) + i2( to)+ + iN(to)}⎜⎝L L L ⎠⎟∫to1 2 N⎛ N1 ⎞= ⎜∑L⎜⎝ ⎠⎟n=1N∫ttovtdt ( ) +i( t o )N1 ⎛ 1 1 1 ⎞ ⎛ 1 ⎞= + + +≡L ⎜ L L L ⎟ ⎜∑⎝ ⎠ L⎝ ⎠⎟eqv1 2 N n=1NS. Purivigraipong 2005

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