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Hello,
I've spend a lot of time at following example of my homework but still unable to find a solution. In fact I have no idea how to solve that, any help would be very appreciate.
Transistor KFY34 has to switch a load of nominal supply voltage 24V and resistance Rs=60Ω.
a)Draw a schematic of electrical circuits.
b)Determinate Ib while the load is switched on.
c)Determinate currents and voltages in the circuit I B = f(t), IC= f(t), UBE = f(t) a U CE = f(t) with the load switched on and off and draw them to a graph.
d)Decide if additional cooling is necessary.
KFY34: NPN, h21E = 35 až 125, UCB0 = 70V, UCER = 50V, ICmax = 500 mA, UCES ≈ 1,5V, PC = 800mW
Ib=Ic/β
Rb=(Uin-Ube)/Ib
I've spend a lot of time at following example of my homework but still unable to find a solution. In fact I have no idea how to solve that, any help would be very appreciate.
Homework Statement
Transistor KFY34 has to switch a load of nominal supply voltage 24V and resistance Rs=60Ω.
a)Draw a schematic of electrical circuits.
b)Determinate Ib while the load is switched on.
c)Determinate currents and voltages in the circuit I B = f(t), IC= f(t), UBE = f(t) a U CE = f(t) with the load switched on and off and draw them to a graph.
d)Decide if additional cooling is necessary.
KFY34: NPN, h21E = 35 až 125, UCB0 = 70V, UCER = 50V, ICmax = 500 mA, UCES ≈ 1,5V, PC = 800mW
Homework Equations
Ib=Ic/β
Rb=(Uin-Ube)/Ib