Analog electronics Experiment8 aim to measure gain and plot frequency response of double stage RC coupled amplifier
Note remember page numbers
Aim: To measure gain and plot frequency response of double stage RC coupled amplifier.
Apparatus:
CRO, function generator, breadboard, transistor BC 104 (2 pcs), capacitor10F (3 pcs), 100F
(2pcs), resistor 4.7K (2pcs), 5.6K (2pcs), 1K (2pcs), 12 V supply and connecting leads.
OR
Function generator, RC Coupled Amplifier Trainer kit, CRO, CRO Probes, connecting leads and
power supply.
Theory:
RC coupled amplifier is a coupling of two emitter biased transistor circuit to form a single
cascade network. The output Vo of one stage is coupled to the input of the next stage. A blocking
capacitor is used to keep the DC component away of the output voltage at Vo1. The emitter
resistor RC and resistor R1 and R2 are used for biasing. The bypass capacitor is used to present
loss of Amplification due to –ve feedback is C2 output is taken across capacitor C2.
Procedure: -
(1) Apply input signal of 10 mv amplitude and frequency 50 Hz at input terminal.
(2) Varying the frequency of the input signal from 10Hz to1MHz.
(3) Measure the output signal amplitude.
(4) Study the frequency response characteristics of RC coupled amplifier.
Conclusion: - The gain of RC coupled amplifier have been studied and frequency response is
observed.
Precautions:
1. Do not use open ended wires for connecting to 230 V power supply.
2. Before connecting the power supply plug into socket, ensure power supply should be
switched off.
3. Ensure all connections should be tight before switching on the power supply.
4. Take the reading carefully.
5. Power supply should be switched off after completion of experiment.
Comments
Post a Comment