Page 430 - Power Electronics Handbook

List of symbols 419

k constant
K constant
Kf flux constant
K" speed constant
Kt torque constant

1 length
L inductance
critical inductance
effective inductance
primary inductance
secondary inductance
m mass

intrinsic electron concentration
concentration of minority carriers in n region
concentration of minority carriers in p region
number of cycles or machine speed

P number of pulses per cycle
P power
power (heat) loss due to conduction
power (heat) loss due to forced cooling, laminar
power (heat) loss due to forced cooling, turbuler
power (heat) loss due to natural convection
power (heat) loss due to radiation
power loss per commutation
average gate power
peak gate power
average reverse gate power
peak reverse gate power

4 charge on an electron
QM maximum heat transport
emitter-base 1 resistance
emitter-base 2 resistance
interbase resistance
drain-source on resistance
resistance
motor armature resistance
bulk resistance
channel resistance
external resistance
motor field resistance
reflection loss
peak resistor value
thermal resistance
collector emitter resistance of a transistor