15
:
-21
.., ..
:
. ..
2012
15 (Lr15)
1. .
2. .
3. MS10 .
ר
- , , () F, ( ) U.
, , , . (f < 1000 ) , , , .
, . , , . , , . .
, . () F = wI c w, U (. 15.1, ).
, d d, :
- ( l (. . .) S , d Sd S );
- ( B (H));
- U , w R .
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MS10 - i ; .
, H , , , , - .
, (. 15.1, ) :
l - . . . ; d d - ; F = wI - ; I - .
,
( ) - , ; - , ; - , 1/; - , 1/; / - .
(. 15.1, ), F, , .
3. ר
d ; (. 15.1, ) N = 5, .
, k, (. 15.1, ), :
k = N 4(int(N 1)/4 = 5 4*1 = 1 ( 10895, . 15.2), int() ;
l = 0,5 + 0,1k, = 0,5 + 0,1 = 0,6, ;
d = 4 k ×10-4, = 4×10-4 ;
= 10 k ×10-4, 2 = 10×10-4 2;
, = 50 + 8 = 58 ( );
= 30 + 8 = 38, ( );
I = 58/38 @ 1,526 ( );
w = 500 + 50 k = 500 + 50 = 550 ( ).
F = wI = 550×1,526 = 839 1/.
,
= 0 (d ¥ ) .
( 15.3) ( 1) [ 0; 0] [0; F ], - 2, () U, S , - l . . . .
U=H*l, A | ||||||||||
=B*S, | 1,1 | 1,34 | 1,42 | 1,44 | 1,46 | 1,49 | 1,52 | 1,75 | 1,75 |
, 0 F, (U) , 1,47 , U 370 Ud 470 .
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d d
.
4. ר EWB5.1.5
(. . 15.1, ) MS10, F, F; RM1, , RM2, Rd (. 15.4).
( DC, R = 1 ), V1 V2 ( DC, RV = 1 ).
RM1 Basic MS10 (agnetic Core), 812 (. . 15.1) () ( 10895 k = 1):
- (Cross-sectional area) S = 0,001 2;
- . . . (Core length) l = 0,6 ;
- () (Numder of co-ordinte) 10:
- (Magnetic field co- ordinate1) 1 = 0;
- (Flux density co-ordinate 1) 1 = 0;
- (Magnetic field co ordinate 2) 2 = 100 ;
- (Flux density co-ordinate 2) 2 = 1,1 /2;
- (Magnetic field co- ordinate 10) 10 = 5000 ;
- (Flux density co-ordinate 10) 10 = 1,78 /2.
15.1
k | , , , / | |||||||||
= 0 | 0,1 | 0,2 | 0,3 | 0,4 | 0,5 | 0,8 | 1,0 | 2,5 | 5,0 | |
= 0 | 1,1 | 1,34 | 1,42 | 1,44 | 1,46 | 1,49 | 1,52 | 1,75 | 1,78 | |
= 0 | 0,42 | 0,62 | 0,85 | 1,12 | 1,16 | 1,18 | 1,29 | 1,45 | 1,56 | |
= 0 | 0,33 | 0,58 | 0,75 | 0,89 | 1,0 | 1,17 | 1,25 | 1,5 | 1,62 | |
= 0 | 0,25 | 0,45 | 0,6 | 0,73 | 0,84 | 1,02 | 1,12 | 1,38 | 1,6 | |
. B, = 1; 2,5 5 / [15, . 1, . 333-335], (), [15, . 1]. |
MS10 (. . 15.4) , . 3 " " , .
1,47 | 1,862 | |
U | 370 | 387,8 |
U | 470 | 451,5 |
F | 839 | 839,3 |
R | 3,2 *105 1/ | 320 |