dk4141 appb

8/6/2019 Dk4141 Appb

1/16

Appendix B Magnetic Core Data

A variety of ferrite cores and shapes exist. Here we give geometrical data ofa selection of commonly used ferrite core shapes. In the tables we use thefollowing abbreviations:

REMARKS

1. The parameters le and Ae are used to nd the inductance of the corewhen there is no air gap, which is so called inductance factor AL.

2. The parameter Amin is used to calculate the saturation limit.3. The parameter effective volume V e is used for calculating the losses

in the core4. The parameters W a, MLT , and MWW concern the corresponding coil

former.

B.1 ETD Core Data (Economic Transformer Design)

The ETD core dimensions and winding parameters are tabulated in Table B.1and an ETD core half is shown in Fig. B.1.

le effective magnetic path Ae effective magnetic area Amin minimum magnetic areaW a minimum winding area MLT mean length per turn MWW minimum winding width

Copyright 2005 by Taylor & Francis Group, LLC

8/6/2019 Dk4141 Appb

2/16

B.1. ETD Core Data (Economic Transformer Design Core)

TABLE B.1

ETD Core Geometrical Dimensions and Winding Parameters

Core type,a [mm]

Geometrical dimensions Effective core parameters of a setb

[mm]c

[mm]d

[mm]e

[mm] f

[mm]V e

[mm 3]le

[mm] Ae

[mm 2] Amin[mm 2]

ETD29 15.8 9.8 9.8 22 11 5470 72 76 71ETD34 17.3 11.1 11.1 25.6 11.8 7640 78.6 97.1 91.6ETD39 19.8 12.8 12.8 29.3 14.2 11500 92.2 125 123ETD44 22.3 15.2 15.2 32.5 16.1 17800 103 173 172ETD49 24.7 16.7 16.7 36.1 17.1 24000 114 211 209ETD54 27.6 18.9 18.9 41.2 20.2 35500 127 280 280ETD59 31 21.6 21.6 44.7 22.5 51500 139 368 368

C o p yr i gh

t 2

0 0 5 b yT

a yl or & F r a n

c i s G

r o u p ,L L

C

8/6/2019 Dk4141 Appb

3/16

Magnetic Core Data 419

FIGURE B.1

ETD core half.

a

c

e

d

bf


8/6/2019 Dk4141 Appb

4/16

B.2. EE Core Data

The EE core dimensions and winding parameters are tabulated in Table B.2 an EE core half

TABLE B.2

EE Core Geometrical Dimensions and Winding Parameters

Core type,a/b/c [mm]

Geometrical dimensions Effective core parameters of a setd

[mm]e

[mm] f

[mm]V e

[mm 3]le

[mm] Ae

[mm 2] Amin[mm 2]

mhal

E5.3/2.7/2 1.4 3.8 1.9 31.4 12.7 2.5 2.3 0E16/8/5 4.7 11.3 5.7 750 37.6 20.1 2E20/10/5 5.2 12.8 6.3 1340 42.8 31.2 25.2 4E25/13/7 7.5 17.5 8.7 2990 58.0 52.0 8E30/15/7 7.2 19.5 9.7 4000 67.0 60 49.0 11E34/14/9 9.3 25.5 9.8 5590 69.3 80.7 14E42/21/15 12.2 29.5 14.8 17300 97.0 178 175 44E42/21/20 12.2 29.5 14.8 22700 97.0 233 233 56E47/20/16 15.6 32.4 12.1 20800 88.9 234 226 53E50/21.3/14.6 14.6 34.5 12.5 20900 92.9 225 213 76E55/28/21 17.2 37.5 18.5 44000 124 354 345 108E60/22.3/15.6 15.6 44 13.8 27200 110 248 240 135E65/32/27 20 44.2 22.2 79000 147 540 530 205E80/38/20 19.8 59.1 28.2 72300 184 392 180

C o p yr i gh

t 2

0 0 5 b yT

a yl or & F r a n

c i s G

r o u p ,L L

C

8/6/2019 Dk4141 Appb

5/16


B.3. Planar EE Core Data

The E planar core dimensions and winding parameters are tabulated inTable B.3. An E-core and an I-plate are shown in Fig. B.3. An E- and an I-corecan be combined or 2 E-cores. The I-plates may also be used for building non-standard geometrics.

FIGURE B.2

EE core half.

a

e

d

fb

c


8/6/2019 Dk4141 Appb

6/16


TABLE B3

EE Planar Core Geometrical Dimensions


Geometrical dimensionsEffective core

parameters of a set of EE coresd [mm] e [mm] f [mm] V e [mm 3] le [mm] Ae [mm 2] m* [g]

E14/3.5/5 3 11 2 300 20.7 14.5 1.1E18/4/10 4 14 2 960 24.3 39.5 4.1E22/6/16 5 16.8 3.2 2550 32.5 78.5 10.5E32/6/20 6.35 25 3.18 5380 41.7 129 23E38/8/25 7.6 30.2 4.45 10200 52.6 194 43E43/10/28 8.1 34.7 5.4 13900 61.7 225 59E58/11/38 8.1 50 6.5 24600 81.2 305 106E64/10/50 10.2 53.6 5.1 40700 79.7 511 178

* m is the mass of the total E/PLT combination.

FIGURE B.3

Planar EE core half and PLT.

a

e

d

bf

c

g

f


8/6/2019 Dk4141 Appb

7/16

B.4. ER Core Data

The ER core dimensions and winding parameters are tabulated in Table B.4. An ER-core hal

TABLE B.4

ER Core Geometrical Dimensions and Winding Parameters

Core type,a [mm]

Geometrical dimensions Effective core parameters of a setb

[mm]c

[mm]d

[mm]e

[mm] f

[mm]V e

[mm 3]le

[mm] Ae

[mm 2] Amin [mm 2]

ER9.5 2.45 5 3.5 7.5 1.6 120 14.2 8.5 7.6ER11 2.45 6 4.25 8.7 1.5 174 14.7 11.9 10.3ER14.5 2.95 6.8 4.6 11.6 1.55 333 19.0 17.6 15.4ER28 14 11.4 9.9 21.75 9.75 5260 64 81.4 77ER35 20.7 11.4 11.3 26.15 14.75 9710 90.8 107 100ER40 22.4 13.4 13.3 29.6 15.45 14600 98 149 139ER48 21.2 21 18 38 14.7 25500 100 255 248ER54 18.3 17.95 17.9 40.65 11.1 23000 91.8 250 240

FIGURE B.4

ER core half.

a

e

d

f

c

C o p yr i gh

t 2

0 0 5 b yT

a yl or & F r a n

c i s G

r o u p ,L L

C

8/6/2019 Dk4141 Appb

8/16

424 Inductors and Transformers for Power Electronics

B.5. UU Core Data

The U core dimensions and winding parameters are tabulated in Table B.5.An U-core half is shown in Fig. B.5.

B.6. Ring Core Data (Toroid Core)

In the drawings we give not-coated cores. The ring core dimensions andwinding parameters are tabulated in Table B.6. A ring core is shown in Fig. B.6.

TABLE B.5

UU Core Geometrical Dimensions and Winding Parameters


Geometricaldimensions Effective core parameters

Windingparameters

d[mm]

e[mm]

V e[mm 3]

le[mm]

Ae[mm 2]

m,half [g]

W a[mm 2]

MLT [mm]

U10/8/3 4.35 5 309 38.3 8.07 0.9 28 30U15/11/6 5.4 6.4 1680 52 32.3 4 38.7 46.6U20/16/7 6.4 8.3 3800 68 56 9 73 54U25/16/6 12.7 9.5 3380 83.6 40.3 8U25/20/13 8.4 11.4 9180 88.2 104 23.5 131 73U30/25/16 10.5 14.9 17900 111 161 43 230 97U67/27/14 38.8 12.7 35200 173 204 85U93/76/16 36.2 48 159000 354 448 400

FIGURE B.5

UU Core half.

a

e

b

f

c


8/6/2019 Dk4141 Appb

9/16


TABLE B.6

Ring Core Geometrical Dimensions

Core type, a /b /c [mm]Effective core parameters

V e [mm 3] le [mm] Ae [mm 2] m [g]

T2.5/1.5/1 2.94 6 0.49 0.015TC2.5/1.5/1 2.73 6 0.45 0.014TN4/2.2/1.6 12.9 9.2 1.4 0.1TN6/4/2 30.2 15.3 1.97 0.15TN10/6/4 188 24.1 7.8 0.95TN16/9.6/6.3 760 38.5 19.7 3.8TN20/10/7 1465 43.6 33.6 7.7TN25/15/10 2944 60.2 48.9 15TN32/19/13 5820 76 76.5 29

TN36/23/15 8600 89.6 96 42TL42/26/13 9860 103 95.8 53TL58/41/18 23200 152.4 152.4 110TX74/39/13 34300 165 208 170T102/66/15 68200 255 267 325T107/65/25 133000 259 514 680

FIGURE B.6

Ring core (toroid).

a

b

c


8/6/2019 Dk4141 Appb

10/16

B.7. P Core Data (Pot Core)

The P core dimensions and winding parameters are tabulated in Table B.7. A P-core half is s

TABLE B.7

Pot Core Geometrical Dimensions and Winding Parameters

Core typea/b [mm]

Geometrical dimensions Effective core parameters of a setc

[mm]d

[mm]e

[mm] f

[mm] g

[mm]h

[mm]V e

[mm 3]le

[mm] Ae

[mm 2] Ami[mm

P11/7 9 4.7 6.8 2.2 4.4 2.1 251 15.5 16.2 13.P14/8 11.6 6 9.5 2.7 5.6 3.1 495 19.8 25.1 19.P18/11 14.9 7.6 13.4 3.6 7.2 3.1 1120 25.8 43.3 36.P22/13 17.9 9.4 15 3.8 9.2 4.4 2000 31.5 63.4 51.P26/16 21.2 11.5 18 3.8 11 5.4 3530 37.6 93.9 76.P30/19 25 13.5 20.5 4.3 13 5.4 6190 45.2 137 115P36/22 29.9 16.2 26.2 4.9 14.6 5.4 10700 53.2 202 172P66/56 35.6 17.7 32 5.1 20.3 6.4 88300 123 717 591

C o p yr i gh

t 2

0 0 5 b yT

a yl or & F r a n

c i s G

r o u p ,L L

C

8/6/2019 Dk4141 Appb

11/16


FIGURE B.7

P core.

e

df

h

c a

g b


8/6/2019 Dk4141 Appb

12/16

B.8. PQ Core Data

The PQ core dimensions and winding parameters are tabulated in Table B.8. A P-core half is

TABLE B.8

PQ Core Geometrical Dimensions and Winding Parameters

Core typea/b [mm]


parameters of a setc

[mm]d

[mm]e

[mm] f

[mm] g

[mm]h

[mm]V e

[mm 3]le

[mm] Ae

[mm 2]

PQ20/16 14 8.8 12 10.3 7.9 4 2330 37.6 61.9PQ20/20 14 8.8 12 14.3 7.9 4 2850 45.7 62.6PQ26/25 19 12 15.5 16.1 10.5 6 6530 54.3 120PQ32/20 22 13.5 19 11.5 11.6 5.5 9440 55.9 169PQ35/35 26 14.4 23.5 25 11.8 6 16300 86.1 190

C o p yr i gh

t 2

0 0 5 b yT

a yl or & F r a n

c i s G

r o u p ,L L

C

8/6/2019 Dk4141 Appb

13/16


B.9. RM Core Data

The RM-core dimensions and winding parameters are tabulated in Table B.9.An RM-core half is shown in Fig. B.9.

FIGURE B.8

PQ core.

a

eh

g c

d

f b

k


8/6/2019 Dk4141 Appb

14/16

TABLE B.9

RM Core Geometrical Dimensions and Winding Parameters

Core type


parameters of a sea

mm

b

mm

c

mm

d

mm

e

mm

f

mm

g

mm

h

mm

V e[mm 3]

le[mm]

Ae[mm 2] [

RM4 11 9 4.6 10.4 3.9 9.8 > 5.8 8 450 21.4 21.2RM5 14.9 9.1 6.8 10.4 4.9 12.3 > 6 10.2 495 19.8 25.1RM8 23.2 14.3 11 16.4 8.6 19.7 > 9.5 17 1850 35.5 39.5RM10 28.5 16.2 13.5 18.6 11 24.7 > 11 21.2 3470 41.7 83.2RM14 42 27 19 30 15 34 > 17 29 13900 70 198

C o p yr i gh

t 2

0 0 5 b yT

a yl or & F r a n

c i s G

r o u p ,L L

C

8/6/2019 Dk4141 Appb

15/16


FIGURE B.9

RM core.

f

c

g

a

e

db

h


8/6/2019 Dk4141 Appb

16/16

432 Inductors and Transformers for Power Electronics

B.10 Other Information

Still other types of cores exist as H, DR, etc. For further information referto specic data of the manufacturers. Relevant information about the coresand ferrite grades can be found in the corresponding sites of the worldmanufactures:

www.ferroxcube.comwww.mag-inc.comwww.epcos.comwww.tokin.comwww.samwha.comwww.ferrishield.com www.ferrite.de
http://www.ferroxcube.com/http://www.mag-inc.com/http://www.epcos.com/http://www.tokin.com/http://www.samwha.com/http://www.ferrishield.com/http://www.ferrite.de/http://www.ferrite.de/http://www.ferrishield.com/http://www.samwha.com/http://www.tokin.com/http://www.epcos.com/http://www.mag-inc.com/http://www.ferroxcube.com/

dk4141 appb

Documents