-20

/

   

- . , , . , "", .

, . - IR2151 International Rectifier . , , . 600 , 0 99 %.

IR 2151 .1.

   -20
( )

, . , C, R.

1 . , , HO . . , 15 .

.2.

   -20
( )

R2C5

f = 1/(1,4R2C5) = 40 .

R1, 15 C4. "", .. R3 VD5. C7, , . , , . C9, L2 C10, L3 40 .

- ( L1 C2, C3 ). "" (- ).

40-50 R4 R5 24 . . .

R1, , : I0 - IR2151; I2 - , VT2; I - R2; I - "" ; I - .

IR2151 1 10 % 100 . I0=1,1 .

, VT2, I2 = 2Qgf, Qg - IRF730 (Qg = 18 ); f - , 40 , .. I2 = 1,4 . R2 I = 0,25 Ucc/R2 = 0,25 15/18103 = 0,21 . "" : 1) VT1 10 200 ; 2) VT1 , 20 200 , ""

I=(1010-3+2010-3)20010-940103=0,24.

0,1 5 . I = 0,5 .

, R1,

IR1 = I0 + I2 + I + I +Ic = 1,1 + 1,4 + 0,21 + +0,24 + 0,5 = 3,45

R1

R1 = (190 - 15)/3,4510-3 = 50 .

47 .

. ( C1, VD1...VD4, L1, C2) . 0,5 . . .3.

   -20

VD1...VD4 0,2 , 350 (, 226, 237, , , 109, 209, 209 405). IR2151 IR2152, IR2153, IR2154, IR2155 - . IRF730 IRF720, IRF740. .

-0,125, R1 - -1, R6 -0,5 . L1 1,3-2,0 0,20,25 , - 2,3-0,21. C8, C9, C10 31-3-5, , 73-17. C2 50-7; C5, C6 - 5; 1, 3, 7 73-17 400 .

, R1, C9, C10 .

L2 L3 -32 29 320 -2 0,3 . 77 2000 0,5 . -20 18 . , ( ).

190 0,2 - 0,21 ( ).

5 , , 100 , , , .

: ..

.

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