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Appendix
MN05013005E
424
Inductive load
without external suppressor circuit
General explanations:
T
0.95
= time in milliseconds until 95 % of the stationary current
is reached
Utilization category in groups for
• Q1 to Q4, Q5 to Q8
T
0.95
≈
3
×
T
0.65
= 3
×
L
R
T
0.95
= 1 ms
R
= 48
Ω
L
= 16 mH
Utilization factor per group g =
0.25
Relative duty factor
%
100
Max. switching frequency
f
= 0.5 Hz
Max. duty factor
DF = 50 %
Switch
operations/h
1500
DC13
T
0.95
= 72 ms
R
= 48
Ω
L
= 1.15 H
Utilization factor g =
0.25
Relative duty factor
%
100
Max. switching frequency
f
= 0.5 Hz
Max. duty factor
DF = 50 %
Switch
operations/h
1500