1

3

213/2013

1

.cir file zad1

.SUBCKT transistor 1 3 6

D1 1 2 ideal_diode

Vbe 2 3 0.7v

Vce 3 4 0.2v

D2 4 6 ideal_diode

F1 5 3 V2 100

V2 1 2 0

S1 6 5 4 6 s

.model s Vswitch

.model ideal_diode D(Is=100pA n=0.1)

.ends

2

V1 1 0 sin(0 5 0.2kHz)

R1 1 2 10k

R2 3 4 1k

Vcc 4 0 10v

X 2 0 3 transistor

.tran 0.01ms 10ms 0ms 0.01ms

.probe

.end

Time

0s 4ms 8ms 12ms 16ms 20msV(3)

-40V

0V

40V

80V

3

2

Pnp - -

4

.cir file zad2

.SUBCKT transistor 1 3 6

D1 2 1 ideal_diode

Vbe 3 2 0.7v

Vce 4 3 0.2v

D2 6 4 ideal_diode

F1 3 5 V2 100

V2 2 1 0

S1 6 5 4 6 s

.model s Vswitch

.model ideal_diode D(Is=100pA n=0.1)

.ends

V1 1 0 sin(0 5 0.2kHz)

R1 1 2 25k

Rb 2 4 500k

R2 3 4 5k

Vcc 4 0 -10v

X 2 0 3 transistor

.tran 0.01ms 10ms 0ms 0.01ms

.probe

.end

5

3

.cir file () zad3

.MODEL BC337 NPN( namerno ne se pishuvanje parametrite za zashteda na vreme I mesto ! )

.MODEL BC327 PNP ( namerno ne se pishuvanje parametrite za zashteda na vreme I mesto ! )

.model D1N4148 D( namerno ne se pishuvanje parametrite za zashteda na vreme I mesto ! )

Time

0s 4ms 8ms 12ms 16ms 20msV(3) V(1)

-120V

-80V

-40V

-0V

40V

6

Vee 1 0 12V

D1 1 2 D1N4148

D2 2 3 D1N4148

D3 3 4 D1N4148

Rb 4 0 10k

Re 1 5 1k

* collector, base, emmiter *

Qbc327 6 4 5 BC327

C1 6 0 0.1u

*Rtest 6 0 10k se postavuva tuka za vtoriot slucaj *

* output = 6 *

* collector, base, emmiter *

Qbc337 6 7 0 BC337

Rbb 7 8 10k

Vinput 8 0 PULSE(-1 10V 0 0.001ms 0.001ms 0.5ms 1ms)

.tran 1ms 5ms 0ms 1ms

.probe

.end

Time

0s 1.0ms 2.0ms 3.0ms 4.0ms 5.0msV(6)

-4V

0V

4V

8V

12V

7

R

,

.

() = 11V =

0.55 KHZ

Time

0s 2ms 4ms 6ms 8ms 10msV(6)

0V

4V

8V

12V

8

5

Time

0s 4ms 8ms 12ms 16ms 20msV(Q1:b) V(Q2:b)

-10V

0V

10V

SEL>>

V(Q1:c) V(Q2:c)-10V

0V

10V