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RC RL

1-2 RC . S1 t=0 vc(t=0)=0 i :


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  • vc :

  • T=RC RC . :

( t=0 ) :


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  • RL 3-2 . S1 t=0 I :

  • i(t=0)=0 .


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  • 2-8 :

  • ( t=0 ) 2-9 .

  • VL :


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  • 1:

  • a 3-2 . . s1 t=0 ) ) R

  • : b 3-2 .

  • ) 3-2 Vs=V0 Ip :

  • I=Vo/R=220/44=5A


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) :

W=0.5C x Vo^2=0.5 x 0.1 x 10^-6 x 220^2

W=0.00242J=2.42 mJ


Lc rlc

LC RLC

  • 2-4a LC S1 t=0

:


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w=1/LC^(1/2) Ip ::

:


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  • S1 a4-2 t1 . . Dm a4-2 . . . t=0 .


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  • 2-4b .

  • . i1 i2 . t1 t2 .


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  • 1. i1 :

2 . . .

:


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: N2=100, N1=10, Lm=250uH. .Vs=220V 0 . s1 t1=50us a)) (b).d1 .(c) . (d) (e) .D .


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:

:


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  • AC . . .


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  • :

  • ( ) Vdc

  • ( ) Idc

  • dc

  • Vrms

  • ac


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  • ( ) :

  • : 1) dc 2 ) ac ac :


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  • .

  • :

  • 2-45 2-47 :


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:

:


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:

  • HF (THD) .

  • Is Is1=Is PF DF . RL .

  • DF (DPF) .


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  • :

  • 2-12 R.(a) .((b .(c) . (d) . (e) CF (f) .d1 .


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:


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  • :

  • 3-17 E=12V 100 W-h . Idc = 5 A . Vp=120V , 60 Hz n=2:1 . ) ) R ) PR R ) h ) ) PIV .

  • : Vm=2Vs=2x60=84.85 V,E=12 V , Vs=Vp/n=120/2=60 V

  • ) 3-58 : 0.1419 red


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  • :

  • 3-14 60 Hz Vs =120 V . VL(t) .


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  • 2-14a . .


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:

2-14a R ) ) ) ) ) (PIV ) D1 ) CF .

:


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  • :

  • 2-14 .


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  • : dc 2-16 . . (a) HF. (b) .


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:


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:


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:

. : ) ) ) ) ) (PIV ) () .

Idc=60A, Vdc=280.7 f=60Hz


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  • 2-23 . :a b :

  • t1=100us, t2=350us, t3=500us, f=250HZ,. Ia=150A, Im=450A, fs=5kHz,

  • .


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:


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  • 4-1a . . T1 . T1 .


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.


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  • :

  • 5-1 R ) FF ) RF ) TUF ) PIV T1 .

  • : 90 .

Vdc=0.1592Vm Idc=0.1592VmR . Vn=0.5pu . : Vrms=0.1592Vm Irms=0.1592Vm/R


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  • . T1 T1 wt=a T1 D2 . a<=wt=<180 Dm . Dm .


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T1 D2 Dm T1 D2 . T2

Dm . Dm T2 D1 .


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  • :

  • Hz 60 V, 120 . Ia . . ) HF DF PF . ) Vdc Vn PF , DF, HF .

  • : ) ) .


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:


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  • :

  • 4-3 Hz 60 V, 120 . Ia . . ) HF DF PF . ) Vdc Vn PF , DF, HF .


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  • :


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n :

:

:


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:

  • :

:():


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