Transformer Calculations - 2 Small Cores

	A	B	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
1	Toroidal Core 27M4		Frequency	Flux	Hysterisis/kg	Volts/turn	Hysteris	Pri Turns	Sec Turns	Pri Ω	Sec Ω	Copper Loss	Load Loss	Efficiency	Windings	Layers
2	Core Weight	17. kg	50 Hz	1. T	0.4 W/kg	1.73 V	6.8 W	232	3190	0.122 Ω	69.445 Ω	172.03 W	178.83 W	97.62%	10.13 kg	10
3	OD	230. mm	50 Hz	1.6 T	0.89 W/kg	2.77 V	15.13 W	145	1994	0.0763 Ω	43.409 Ω	107.53 W	122.66 W	98.36%	6.33 kg	7
4	ID	100. mm
5	H	70. mm	100 Hz	0.924 T	1. W/kg	3.2 V	17. W	126	1733	0.0663 Ω	37.727 Ω	93.45 W	110.45 W	98.53%	5.50 kg	6
6	Area	9100 mm²	100 Hz	1.16 T	1.5 W/kg	4.01 V	25.5 W	100	1375	0.0526 Ω	29.933 Ω	74.15 W	99.65 W	98.67%	4.37 kg	4
7		.0091 m²	100 Hz	1.365 T	2. W/kg	4.72 V	34. W	85	1169	0.0447 Ω	25.449 Ω	63.04 W	97.04 W	98.71%	3.71 kg	4
8	Derated (stacking)	.008645 m²
9			200 Hz	0.502 T	1. W/kg	3.47 V	17. W	116	1595	0.061 Ω	34.723 Ω	86.01 W	103.01 W	98.63%	5.07 kg	6
10	Length/turn (+5%)	283.5 mm	200 Hz	0.743 T	2. W/kg	5.14 V	34. W	78	1073	0.041 Ω	23.359 Ω	57.86 W	91.86 W	98.78%	3.41 kg	4
11	Primary Width	2.54 mm	200 Hz	0.931 T	3. W/kg	6.44 V	51. W	63	867	0.0331 Ω	18.874 Ω	46.75 W	97.75 W	98.70%	2.75 kg	3
12	Primary Area	12.9 mm²
13	Secondary Width	0.63 mm	400 Hz	0.273 T	1. W/kg	3.78 V	17. W	106	1458	0.0557 Ω	31.74 Ω	78.62 W	95.62 W	98.73%	4.63 kg	5
14	Secondary Area	0.31 mm²	400 Hz	0.343 T	1.5 W/kg	4.74 V	25.5 W	85	1169	0.0447 Ω	25.449 Ω	63.04 W	88.54 W	98.82%	3.71 kg	4
15	Copper Temperature	130	400 Hz	0.403 T	2. W/kg	5.57 V	34. W	72	990	0.0379 Ω	21.552 Ω	53.39 W	87.39 W	98.83%	3.14 kg	4
16	Density	8960 kg/m³	400 Hz	0.456 T	2.5 W/kg	6.31 V	42.5 W	64	880	0.0337 Ω	19.157 Ω	47.46 W	89.96 W	98.80%	2.79 kg	3
17	Resistivity 20C	1.68E-08	400 Hz	0.507 T	3. W/kg	7.01 V	51. W	58	798	0.0305 Ω	17.372 Ω	43.03 W	94.03 W	98.75%	2.53 kg	3
18	Resistivity	2.39E-08	400 Hz	0.55 T	3.5 W/kg	7.61 V	59.5 W	53	729	0.0279 Ω	15.87 Ω	39.31 W	98.81 W	98.68%	2.31 kg	3
19	Primary Ω/turn	525.926E-6 Ω	400 Hz	0.595 T	4. W/kg	8.23 V	68. W	49	674	0.0258 Ω	14.673 Ω	36.34 W	104.34 W	98.61%	2.14 kg	3
20	Secondary Ω/turn	21.770E-3 Ω	400 Hz	0.701 T	5.38 W/kg	9.7 V	91.46 W	42	578	0.0221 Ω	12.583 Ω	31.16 W	122.62 W	98.37%	1.83 kg	3
21
22	Capacity	7.5 kVA	1000 Hz	0.121 T	1. W/kg	4.18 V	17. W	96	1320	0.0505 Ω	28.736 Ω	71.18 W	88.18 W	98.82%	4.19 kg	4
23	Primary Current	18.75 A	1000 Hz	0.176 T	2. W/kg	6.09 V	34. W	66	908	0.0347 Ω	19.767 Ω	48.96 W	82.96 W	98.89%	2.88 kg	3
24	Secondary Current	1.364 A	1000 Hz	0.218 T	3. W/kg	7.54 V	51. W	54	743	0.0284 Ω	16.175 Ω	40.06 W	91.06 W	98.79%	2.36 kg	3
25
26			2000 Hz	0.062 T	1. W/kg	4.31 V	17. W	93	1279	0.0489 Ω	27.843 Ω	68.97 W	85.97 W	98.85%	4.06 kg	4
27	V = Factor * Core Area * F * Bmax * turns
28	V/(turns * Bmax * F) = Factor * Core Area
29	Factor	4
30	V per (turns * T * Hz)	0.03458
31	Primary	400 V
32	Secondary	5500 V
33	S/P	13.75
34
35	Pri Turns Per Layer	111.3162751
36	Sec Turns Per Layer	473.7322255
37
38	Diameter	0.4 mm
39	Area	0.13 mm²
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