Week 4 Session 5

Types of power converter:

*AC to AC power converter.

*DC to AC power converter.

*AC to DC power converter.

*DC to DC power converetr.

Uses of power converter:

*Delivering power to auxiliary loads operating at different voltages.

*Using low voltages battery to high voltages battery.

Power electronics devices:

1)Laptop charger:

*230V AC input from power supply is converted into 230V unregulated DC output to 19.5V regulated DC output. Here using the buck converter for stepdown the voltage.

*MOSFET is used as a power conveter devices.

2)EV charging station:

*6.6 kV AC input to 400V DC output. here using the boost converter to stepup the voltages.

*BJT is used as a power converter device.

3)HVDC interface:

*440kV AC input to 500kV DC output. Here using the boost converter to stepup the voltage.

*IGBT is used as a power converter device.