Inductance Characteristics
Core Loss
1000
800
600
500
400
300
200
100
80
60
50
40
30
20
10
050
Inductance
% OF I
SA T
% of OCL or % of Energy
Energy
100 150 200 250 300
0
20
40
50
60
70
80
90
20 kHz
50 kHz
100 kHz
200 kHz
500 kHz
% of Losses from Irms (maximum)
% of applied Volt-µ Seconds
92
94
95
96
97
98
99
10
20
30
40
50
60
80
100
200
300
400
500
600
800
1000
1
000
800
600
500
400
300
200
100
80
60
50
40
30
20
1
0
050
Inductance
% OF I
S
AT
% of OCL or % of Energy
Energy
100 150 200 250 300
0
2
0
40
50
60
70
80
90
20 k
Hz
50 k
Hz
100 k
Hz
200 k
Hz
500 k
Hz
% of Losses from Irms (maximum)
% of applied Volt-µ Seconds
92
94
9
5
96
97
98
99
10
20
30
40
50
60
80
100
200
300
400
500
600
800
1000
LOW COST POWER INDUCTORS
Toroidal Inductors
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PM-4304 3/07
© Cooper Electronic
Technologies 2007
