拓扑磁芯功率速查表
Ae,cm2
Ab,cm2 0.171 0.329 0.359 0.581 0.968 1.149 1.213 1.781 1.810 1.370 2.800 2.160 0.968 1.350 2.130 4.770 0．903 1.220 1.740 2.130 2.710 0.022 0.034
AeAb,cm4
各频率下的最大输出功率
20kHz
24kHz
48kHz
72kHz
96kHz
150kHz 200kHz 250kHz 300kHz
体积 Cm3
EE Cores,Ferroxcube-Philips
814E250 813E187 813E343 812E250 782E272 E375 E21 783E608 783E776 E625 E55 E75 Ec35 Ec41 Ec52 Ec70 ETD29 ETD34 ETD39 ETD44 ETD49 704 905
0.202 0.225 0.412 0.395 0.577 0.810 1.490 1.810 2.330 2.340 3.530 3.380 0.843 1.210 1.800 2.790 0．760 0.971 1.250 1.740 2.110 0.070 0.101
0.035 0.074 0.148 0.229 0.559 0.931 1.807 3.224 4.217 3.206 9.884 7.301 0.816 1.643 3.834 13.208 0．686 1.185 2.175 3.706 5.718 0.002 0.003
1.1 2.4 4.7 7.3 17.9 29.8 57.8 103.2 135.0 102.6 316.3 233.6 26.1 52.3 122.7 425.9 22．0 37.9 69.6 118.6 183.0 0.0 0.1
1.3 2.8 5.7 8.8 21.4 35.7 69.4 123.8 161.9 123.1 379.5 280.4 31.3 62.7 147.2 511.0 26.4 45.5 83.5 142.3 219.6 0.1 0.1
2.7 5.7 11.4 17.6 42.9 71.5 138.8 247.6 323.9 246.2 759.1 560.7 62.9 125.5 294.5 1022.1 52.7 91.0 167.0 284.6 439.2 0.1 0.3
4.0 8.5 17.0 26.4 64.3 107.2 208.2 371.4 458.8 369.3 1138.6 841.1 94.0 188.2 441.7 1533.1 79.1 136.5 250.6 427.0 658.7 0.2 0.4
5.3 11.4 22.7 35.3 85.8 143.0 227.6 495.1 647.8 492.4 1518.2 1121.4 125.3 250.9 588.9 2044.2 105.4 182.0 334.1 569.3 878.3 0.2 0.5
8.3 17.8 35.5 55.1 134.0 223.4 433.8 773.7 1012.2 769.4 2372.2 1752.2 195.8 392.0 920.2 3194.0 164.7 284.3 522.0 889.5 1372.3 0.4 0.8
11.1 23.7 47.3 73.4 178.7 297.8 578.4 1031.6 1349.5 1025.9 3162.9 2336.3 261.1 522.7 1226.9 4258.7 219.6 379.1 696..0 1186.0 1829.8 0.5 1.1
13.8 29.6 59.2 91.8 223.4 372.3 722.9 1289.4 1686.9 1282.3 3953.6 2920.3 326.4 653.4 1533.6 5323.3 274.5 473.8 870.0 1482.5 2287.2 0.6 1.4
16.6 35.5 71.0 110.2 268.1 446.7 867.5 1547.3 2022年.3 1538.8 4744.3 3504.4 391.7 784.1 1840.3 6388.0 329.4 568.6 1044.0 1779.0 2744.7 0.7 1.6
0.57 0.89 1.64 1.93 3.79 5.64 11.5 17.80 22.9 20.80 43.50 36.00 6.53 10.80 18.80 40.10 5.50 7.64 11.50 18.00 24.20 0.07 0.13
EC Cores, ,Ferroxcube-Philips
ETD Cores,Ferroxcube-philips
Pot Cores,Ferroxcube-philips
__ __ RM5 RM6 RM8 RM10 RM12 RM14 42022年 42022年 __ __ __ __ __ __
0.167 0.251 0.433 0.635 0.948 1.380 2.020 2.660 0.250 0.370 0.630 0.970 1.460 1.980 0.620 0.620 1.190 1.180 1.700 1.610 1.960 2.010
0.054 0.079 0.187 0.297 0.407 0.587 0.774 1.400 0.095 0.155 0.310 0.426 0.774 1.100 0.256 0.384 0.322 0.502 0.470 0.994 1.590 2.490
0.009 0.024 0.081 0.189 0.386 0.810 1.563 3.724 0.024 0.057 0.195 0.413 1.130 2.178 0.159 0.238 0.383 0.592 0.799 1.600 3.116 5.005
0.3 0.8 2.6 6.0 12.3 25.9 50.0 119.2 0.8 1.8 6.2 13.2 36.2 69.7 5.1 7.6 12.3 19.0 25.6 51.2 99.7 160.2
0.3 0.9 3.1 7.2 14.8 31.1 60.0 143.0 0.9 2.2 7.5 15.9 43.4 83.6 6.1 9.1 14.7 22.7 30.7 61.5 119.7 192.2
0.7 1.9 6.2 14.5 29.6 62.2 120.1 286.0 1.8 4.4 15.0 31.7 86.8 167.3 12.2 18.3 29.4 45.5 61.4 122.9 239.3 384.4
1.0 2.8 9.3 21.7 44.4 93.3 180.1 429.0 2.7 6.6 22.5 47.6 130.2 250.9 18.3 27.4 44.1 68.2 92.0 184.4 359.0 576.6
1.4 3.7 12.4 29.0 59.3 124.4 240.2 572.0 3.6 8.8 30.0 63.5 173.6 334.5 24.4 36.6 58.9 91.0 122.7 245.8 478.7 768.8
2.2 5.8 19.4 45.3 92.6 194.4 375.2 893.8 5.7 13.8 46.9 99.2 271.2 522.7 38.1 57.1 92.0 142.2 191.8 384.1 747.9 1201.2
2.9 7.8 25.9 60.4 123.5 259.2 500.3 1191.6 7.6 18.4 62.5 132.2 361.6 697.0 50.8 76.2 122.6 189.6 255.7 512.1 997.2 1601.6
3.6 9.7 32.4 75.4 154.3 324.0 625.4 1489.6 9.5 22.9 78.1 165.3 452.0 871.2 63.5 95.2 153.3 236.9 319.6 640.1 1246.6 2022年..0
4.3 11.7 38.9 90.5 185.2 388.8 750.5 1787.5 11.4 27.5 93.7 198.3 542.4 1045.4 76.2 114.3 183.9 284.3 383.5 768.2 1495.9 2402.4
0.25 0.50 1.12 2.00 3.53 6.19 10.70 18.2 0.45 0.80 1.85 3.47 8.34 13.19 2.31 2.79 5.49 6.53 9.42 11.97 17.26 20.45
Rm Cores,Ferroxcube-philips
PQ Cores,Ferroxcube-philips
选自《开关电源设计》P196
0.00050BmaxfAeAb
。其中Po的单位为瓦，Bmax的单位为高斯。Ae
Dcma
和Ab的单位为平方厘米，Ab是骨架的绕组面积。f的单位是赫兹，Dcma的单位是圆密耳每有效值安培，骨架窗口面积使用系数40%。 而对于其他Bmax值，表中的数据应乘以系数（Bmax/1600）,对于其他Dcma值，应乘以系数500/Dcma。对于推挽拓扑，应取原值的2倍。
注：当Dcma=500圆密耳每有效值安培、Bmax=1600G时，Po=
几种常见铁氧磁心在半桥或全桥拓扑的最大输出功率速查表
磁心型号 Ae,cm2
Ab,cm2 0.171 0.329 0.359 0.581 0.968 1.149 1.213 1.781 1.810 1.370 2.800 2.160 0.968 1.350 2.130 4.770 0．903 1.220 1.740 2.130 2.710 0.022 0.034 0.054 0.079
AeAb,cm4
各频率下的最大输出功率
20kHz
24kHz
48kHz
72kHz
96kHz
150kHz 200kHz 250kHz 300kHz 体积 Cm3
EE Cores,Ferroxcube-Philips
814E250 813E187 813E343 812E250 782E272 E375 E21 783E608 783E776 E625 E55 E75 Ec35 Ec41 Ec52 Ec70 ETD29 ETD34 ETD39 ETD44 ETD49 704 905 1107 1408
0.202 0.225 0.412 0.395 0.577 0.810 1.490 1.810 2.330 2.340 3.530 3.380 0.843 1.210 1.800 2.790 0．760 0.971 1.250 1.740 2.110 0.070 0.101 0.167 0.251
0.035 0.074 0.148 0.229 0.559 0.931 1.807 3.224 4.217 3.206 9.884 7.301 0.816 1.643 3.834 13.208 0．686 1.185 2.175 3.706 5.718 0.002 0.003 0.009 0.024
3.1 6.6 13.3 20.6 50.0 83.4 161.9 288.8 377.9 287.2 885.6 654.2 73.1 164.6 343.5 1192.4 61.5 106.1 194.9 332.1 512.3 0.1 0.3 0.8 2.2
16 24.8 60.3 100.5 195.2 348.1 455.5 346.2 1067.5 788.5 88.1 176.4 414.1 1437.3 74.1 127.9 234.9 400.3 617.6 0.2 0.4 1.0 2.6 3.7 8.0
7.4 15.9 31.8 49.3 120.1 200.1 388.6 693.1 906.7 689.2 2125.1 1569.7 175.4 351.2 824.1 2861.3 147.6 254.7 467.6 796.8 1229.4 0.3 0.7 1.9 5.2
11.2 23.9 47.8 74.1 180.4 300.6 583.8 1041.2 1362.2 1035.5 3192.5 2358.2 263.6 527.6 1238.4 4298.6 221.7 382.6 702.5 1197.1 1846.9 0.5 1.1 2.9 7.8
14.9 31.8 63.6 98.7 240.2 400.2 777.2 1386.2 1813.4 1378.5 4250.1 3139.3 350.9 702.4 1648.6 5722.6 295.1 509.4 935.3 1593.7 2458.8 0.7 1.5 3.9 10.4
23.2 49.7 99.4 154.2 375.3 625.4 1214.6 2166.2 2834.0 2154.3 6642.0 4906.1 548.4 1097.7 2576.4 8943.2 461.2 796.1 1461.6 2490.6 3842.6 1.0 2.3 6.1 16.3
30.9 66.3 132.5 205.6 500.4 833.9 1619.4 2888.4 3778.7 2872.4 8856.1 6541.5 731.2 1463.6 3435.3
38.7 82.9 165.7 257.0 625.6 1042.4 2022年.3 3610.4 4723.4 3590.5 8176.9 913.9 1829.5 4294.1
46.4 99.5 198.8 308.4 750.7 1250.8 2429.1 4332.5 5668.1 4308.6 9812.3 1096.7 2195.4 5152.9
0.57 0.89 1.64 1.93 3.79 5.64 11.5 17.80 22.9 20.80 43.50 36.00 6.53 10.80 18.80 40.10 5.50 7.64 11.50 18.00 24.20 0.07 0.13 0.25 0.50
__.1 __.1
EC Cores, ,Ferroxcube-Philips
__.2 __.3 __.4 614.9 1061.4 1948.8 3320.8 5123.4 1.4 3.1 8.1 21.8
768.6 1326.8 2436.0 4150.9 6404.3 1.7 3.8 10.1 27.2
922.4 1592.1 2923.2 4981.1 7685.1 2.1 4.6 12.1 32.7
ETD Cores,Ferroxcube-philips
Pot Cores,Ferroxcube-philips
__ 3622 4229 RM5 RM6 RM8 RM10 RM12 RM14 42022年 42022年 __ __ __ __ __ __
0.433 0.635 0.948 1.380 2.020 2.660 0.250 0.370 0.630 0.970 1.460 1.980 0.620 0.620 1.190 1.180 1.700 1.610 1.960 2.010
0.187 0.297 0.407 0.587 0.774 1.400 0.095 0.155 0.310 0.426 0.774 1.100 0.256 0.384 0.322 0.502 0.470 0.994 1.590 2.490
0.081 0.189 0.386 0.810 1.563 3.724 0.024 0.057 0.195 0.413 1.130 2.178 0.159 0.238 0.383 0.592 0.799 1.600 3.116 5.005
7.3 16.9 34.6 72.6 140.1 333.7 2.1 5.1 17.5 37.0 101.3 195.1 14.2 21.3 34.3 53.1 71.6 143.4 279.2 448.4
8.7 20.4 41.7 87.5 168.9 402.2 2.6 6.2 21.1 44.6 122.0 235.2 17.1 25.7 41.4 64.0 86.3 172.8 336.6 540.5
17.4 40.5 83.0 174.2 336.1 800.7 5.1 12.3 42.0 88.8 243.0 468.3 34.1 51.2 82.4 127.4 171.8 344.1 670.0 1076.1
26.2 60.9 124.6 261.6 505.0 1202.9 7.7 18.5 63.1 133.5 365.0 703.5 51.3 76.9 123.8 191.3 258.1 516.9 1006.6 1616.6
34.8 81.1 165.9 348.3 672.3 1601.3 10.2 24.7 84.0 177.7 485.9 936.5 68.2 102.4 164.8 254.7 343.6 688.1 1340.1 2152.1
54.4 126.7 259.3 544.4 1050.7 2502.5 16.0 38.5 131.2 277.7 759.4 1463.6 106.7 160.0 257.5 398.1 536.9 1075.4 2094.2 3363.3
72.6 169.0 345.7 725.8 1400.9 3336.7 21.3 51.4 175.0 370.2 1012.5 1951.5 142.2 213.3 343.3 530.8 715.9 1433.9 2792.3 4484.4
90.7 211.2 432.1 907.2 1751.1 4170.9 26.6 64.2 218.7 462.8 1265.6 2439.4 177.8 266.6 429.2 663.4 894.9 1792.4 3490.4 5605.5
108.8 253.5 518.6 1088.7 2101.3 5005.1 31.9 77.1 262.5 555.4 1518.8 2937.2 213.3 320.0 515.0 796.1 1073.9 2150.9 4188.4 6726.6
1.12 2.00 3.53 6.19 10.70 18.2 0.45 0.80 1.85 3.47 8.34 13.19 2.31 2.79 5.49 6.53 9.42 11.97 17.26 20.45
Rm Cores,Ferroxcube-philips
PQ Cores,Ferroxcube-philips
以上选自《开关电源设计》P198
0.0014BmaxfAeAb
。其中Po的单位为瓦，Bmax的单位为高斯。Ae和
Dcma
Ab的单位为平方厘米，Ab是骨架的绕组面积。f的单位是赫兹，Dcma的单位是圆密耳每有效值安培，骨架窗口面积使用系数40%。而 对于其他Bmax值，表中的数据应
乘以系数（Bmax/1600）,对于其他Dcma值，应乘以系数500/Dcma。
注：当Dcma=500圆密耳每有效值安培、Bmax=1600G时，Po=
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