4EE7 POWER ELECTRONICS LAB-II

1  Plot gain-frequency characteristics of BJT amplifier with and without negative feedback in the

emitter circuit and determine bandwidths, gain bandwidth products and gains at 1KHz with and

without negative feedback.

2  Study of series and shunt voltage regulators and measure line and load regulation and ripple

factor.

3  Plot and study the characteristics of small signal amplifier using FET.

4  Push Pull amplifier: To study variation of output power & distortion with load.

5  Study Wein bridge oscillator and observe the effect of variation in R & C on oscillator frequency

6  Study transistor phase shift oscillator and observe the effect of variation in R & C on oscillator

frequency and compare with theoretical value.

7  Study the following oscillators and observe the effect of variation of C on oscillator frequency:

(i) Hartley (ii) Colpitts

8  (i) Study op-amp in inverting and non-inverting modes. (ii) Use op-amp as scalar, summer and

voltage follower.

9  Use of op-amp as differentiator and integrator.

10  Study Op-amp characteristics and get data for input bias current, measure the output-offset

voltage and reduce it to zero and calculate slow rate.

11  Obtain a frequency response of filters.

12  Analyze filter circuits to produce voltage frequency & phase-frequency response graphs using