电路原理_skja_18

电路原理_skja_18

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Unformatted text preview: 正正正正正正正正正正正 正正正正正正正正正正正 正正正正正正正正正正正 正正正正正正正正正正正 正正正正正正正正正正 正正正正正正正正正正 正正正正 正正正正 正正正正正正正正 正正正正正正正正 正正正正 正正正正 正正正正正正正正正正正正正正正正正 º º i i 1 i 2 A t i ) 30 sin( 6 2 1 + = ϖ 正正正 A t i ) 60 sin( 4 2 2 + = ϖ 正 i 2 1 i i i + = A ) 42 sin( 67 . 9 2 + = t i ϖ 正正正正 1. 正正 A 正正正正正 ) 1 (j 正正正正正- = A = a +j b 正正正正正正 ( 正正正 ) 正 A b Re Im a O θ a +j b 正正正正正正正 A 正正正 = = θ θ sin | | cos | | A b A a A b Re Im a 正正正 | A | 正 2 2 b a A + = A =| A |e j θ =| A | θ 正正正正正 ( 正正正正 ) 正 正正正正 θ θ θ sin cos j e j + = a b θ arctag = 正正正 ) sin (cos | | θ θ j A A + = 正正正正正 正正正正 正正正正正正 1. 正正 A 正正正正 ) 1 (j 正正正正正- = A = a +j b 正正正正正正 ( 正正正 ) 正 ] Re[ A = ] Im[ A = 2. 正正正正 正 A 1 ± A 2 =( a 1 ± a 2 )+j( b 1 ± b 2 ) (1) 正正正正——正正正正 正 A 1 = a 1 +j b 1 正 A 2 = a 2 +j b 2 A 1 A 2 Re Im O 正正正正正正正正正 (2) 正正正正——正正正 正 A 1 =| A 1 | θ 1 正正 A 2 =| A 2 | θ 2 正 A 1 A 2 =| A 1 | | A 2 |...
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This note was uploaded on 11/22/2011 for the course EE Ele taught by Professor Cheng during the Fall '10 term at Tsinghua University.

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电路原理_skja_18

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