1 Study the comparison of following power electronics devices regarding ratings,
performance characteristics and applications: Power Diode, Power Transistor, Thyristor,
Diac, Triac, GTO, MOSFET, MCT and SIT.
2 Determine V-I characteristics of SCR and measure forward breakdown voltage,
latching and holding currents.
3 Find V-I characteristics of TRIAC and DIAC.
4 Find output characteristics of MOSFET and IGBT.
5 Find transfer characteristics of MOSFET and IGBT.
6 Find UJT static emitter characteristics and study the variation in peak point and valley
point.
7 Study and test firing circuits for SCR-R, RC and UJT firing circuits.
8 Study and test 3-phase diode bridge rectifier with R and RL loads. Study the effect of
filters.
9 Study and obtain waveforms of single-phase half wave controlled rectifier with and
without filters. Study the variation of output voltage with respect to firing angle.
10 Study and obtain waveforms of single-phase half controlled bridge rectifier with R
and RL loads. Study and show the effect of freewheeling diode.
11 Study and obtain waveforms of single-phase full controlled bridge converter with R
and RL loads. Study and show rectification and inversion operations with and without
freewheeling diode.
12 Control the speed of a dc motor using single-phase half controlled bridge rectifier and
full controlled bridge rectifier. Plot armature voltage versus speed characteristics.