Page 428 - Power Electronics Handbook
P. 428
Appendix 1
List of symbols
a cross-sectional area
A amperes
AI absorption loss
lux density
multiple-reflection loss factor
c specific heat
C capacitance
cd depletion capacitance
Cin input capacitance
Cth thermal capacity
d thickness or depth
D diameter
Dn electron diffusion constant
3 hole diffusion constant
incremental temperature difference
dildt rate of change of current
dvldt rate of change of voltage
electric field or motor back e.m.f.
shielded electric field
unshielded electric field
stored energy
f frequency
fmax maximum frequency
fr ripple frequency
fs supply frequency
FC commutation factor
hFE transistor common emitter gain
H magnetic field
Hf harmonic factor
Hs shielded magnetic field
H" unshielded magnetic field
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