Page 156 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

Table 1
Sl.No V s V d Voltage Gain dB Gain = 20 log (Vo/Vi) dB
1

2

TASK 3: Construct MOSFET amplifier circuit
1 Assemble components in PCB as in Fig 2
2 Get the circuit assembly checked by instructor

Fig 2

TASK 4: Test MOSFET amplifier circuit
1 Connect +12V dc power supply at their indicated position from external source.

2 Switch ON the power supply.
3 Observe the signal input and output wave form in CRO
4 Check Vs and Vd from plotted wave
5 Calculate gain Vd/Vs
6 Vary Vs for 1 more varied amplitude and repeat steps 3 to 5
7 Tabulate (Table 2) the readings and calculate voltage gain to verify the amplifying action of MOSFET

Table 2
Sl.No V s V d Voltage Gain

1
2

139

CITS : Power - Electrician & Wireman - Exercise 66