半桥变压器设计步骤(精)

Vinmax(V:12 Vin(V:12 Vinmin(V:12 Vo(V:5000 流 Io(A:50.250.18

率 f(Hz: D(us:

0.3 Ton(us :

流. 路 降 數 :

(10V ,50A 1.11

路 降 V DF (V : 率 : 路 ( :2 - 流/ 1 - 流/ 2 - 流/ 3

t ( :

Core

POT Core( 狀 / 1 , 金 / 2 , / 3

度:

25

:

:

:

EI40/27/12Ap : cm 4

Bm :

0.042PRI SEC1SEC2SEC3

Kj = 數 : 率 :37.62%,不 45%.X =

:

:

1.61% :

Pcu : W 量(g: 0.01 Pfe :

W

( : 0.020 d < mm :

0.1000.36 數:

81.00

0.25

參

度 數

Weight1Weight2

Weight3Weight4column c1column c2column c3column c4

Ap Ac MLT Wc Vol Wtfe AS Ku Kf 1.6726 1.42

8.22117.79

:

STEP NO.1 : 流 Vs1Vs2Vs3Eo = K*Vo + Vd =

V

Eo =

V STEP NO.2 : 率

Ps1Ps2Ps3 P SAC =Eo*Io=

VA

P SAC = VA P ODC =

VA

STEP NO.3 : 率

0.945

STEP NO.4 : 率 ( 路

Pt ( 流 = Po*(1/ +20.5

= VA Pt ( 流 = Po*(1/ +1 = VA Pt ( 流 = Po*(1/ +1 =

VA

Vo(V: 流 Io(A: Vo(V: 流 Io(A:

Pt ( 路 = VA

STEP NO.6 :

6.4939cm

4

STEP NO.7 : 數

Np=(V INmIN *Dmax/(2*Bm*Ac*f =

T ***

STEP NO.7 : D.

Dmin =Dmax/((1-Dmax*K+Dmax = us Dmax =K*Dmin/((Dmin*(K-1+1 =

us

STEP NO.8 : 流

Ip=2*(2Dmax0.5

*Eo*Io/Vinmin =

A

J=Kj*Ap X

=

5.92A/cm 2

STEP NO.10 :

dp = 11.287(Ip/J1/2 =

mm

:

mm

STEP NO.12 :

Pcu = Ip 2

*Rp =

W STEP NO.13 : 流( 路 Is1Is2Is3Is 流 = (1+2Dmax0.5

/2*Io = A Is 流 = (2*Dmax0.5*Io = A Is 流 = A Is 路 =

A

STEP NO.14 : 數

Ns1Ns2Ns3Ns=(2Np*Eo*Dmax/(Vinmin/2 =

T

STEP NO.15 :

0.943 mm

0.211

mm 0.179

mm

STEP NO. 16 : :

cm 流 cm

流

cm

流

cm

N 2

/Wc =37.62%

STEP NO.17 :

Rs1Rs2Rs3

STEP NO.18 :

Pcu =Io 2

*Rs =

W STEP NO.19 :

Pcu=Pcu +Pcu =

W STEP NO .20 : 率

%

STEP NO.21 : 率

STEP NO.22 :

STEP NO.9 : 流 度

N 2

=Np* 12+Ns* 22 =

Ap=[(Pt*104/(Kf*Ku*Kj*f*Bm]1/(1-X =

Rs=MLT*Ns*Column C* *10-6 =

Rp=MLT*Np*Column C1* *10-6

=

=Pcu/(Po+Pcu*100 =

: N 2

/Wc < 45%

P =Po/ -Po =

W STEP NO.23 :

W

STEP NO.24 :

W :Pfe=0.287*f 1.448*(10*B2 *10-3*Vol = W :Pfe=0.262*f 1.39*B 2.19 *10-3* Wtfe =

W 狀 :

Pfe=5.97*f 1.26

*Bac 1.73

*10-3

* Wtfe =

W

路 Pfe=

STEP NO.25 :

P =Pcu+Pfe =

W STEP NO .26 : Vo

Vs1Vs2Vs3Vo = (Ns*Vinmin/(4Np*Dmax-Vd =

50.000.000.00

V

STEP NO .27. 量

g g g g

STEP NO.28. .

t = (P /(As*0.00050.79

=

55.01 STEP NO.29. .

d < 2*65.5/f 0.5 =

mm

STEP NO.30. 數.

PRI :n = (d/d MIN 2

=

SEC1 :n = (d/d MIN 2

= SEC1 :n = (d/d MIN 2

= SEC1 :n = (d/d MIN 2

=

W G3=MLT*Ns2*Weight3 = W G4=MLT*Ns3*Weight4 =

W G1=MLT*Np*Weight 1 = W G2=MLT*Ns1*Weight *Wtfe =

2 =Pfe=P -Pcu =Pfe=0.165*10-3*f 1.41*B 1.77