3EE7 POWER ELECTRONICS LAB

3EE7 POWER ELECTRONICS LAB-I

1 Study the following devices: (i) Analog & digital multimeter (ii) Function/ Signal generators (iii)

Regulated d. c. power supplies (constant voltage and constant current operations)

2 Study of digital storage CRO and store a transient on it.

3 Study of analog CRO, CRO probes, measurement of time period, amplitude, frequency & phase

angle using Lissajous figures.

4 Plot V-I characteristic of P-N junction diode & calculate cut-in voltage, reverse Saturation

current and static & dynamic resistances.

5 Plot V-I characteristic of zener diode and study zener diode as voltage regulator. Observe the

effect of load changes and determine load limits of the voltage regulator.

6 Plot frequency response curve for audio amplifier and to determine gain bandwidth product.

7 Plot drain current - drain voltage and drain current – gate bias characteristics of field effect

transistor and measure of Idss & Vp

8 Plot gain- frequency characteristic of two stages RC coupled amplifier & calculate its bandwidth

and compare it with theoretical value.

Plot gain- frequency characteristic of emitter follower & find out its input and output resistances.

10 Plot input and output characteristics of BJT in CB, CC and CE configurations. Find their h-

parameters.

11 Study half wave rectifier and effects of filters on wave. Also calculate ripple factor.

12 Study bridge rectifier and measure the effect of filter network on D.C. voltage output & ripple