Power Electronics Archives - Page 7 of 8

Comparison between BJT and IGBT

4 Jun 20194 Jun 2019 by Electrical Workbook

In this topic, you study the comparison of Power devices like BJT and IGBT. Parameters BJT IGBT Carriers type Bipolar device Bipolar device Gate or base drive Current controlled Voltage Controlled Temperature coefficient of ON-state resistance Negative Positive Applications Inverters, Choppers, UPS, SMPS, induction motor drives. Inverters, UPS, SMPS, AC motor drives. Switching Power loss … Read more

Comparison between BJT, MOSFET and IGBT

4 Jun 20194 Jun 2019 by Electrical Workbook

In this topic, you study the comparison of Power devices like BJT, MOSFET, and IGBT. Parameters BJT MOSFET IGBT Carriers type Bipolar device Majority carrier device Bipolar device Gate or base drive Current controlled Voltage Controlled Voltage Controlled Temperature coefficient of ON-state resistance Negative Positive Positive Applications Inverters, Choppers, UPS, SMPS, induction motor drives. Choppers, … Read more

Principle of Step Down Chopper (Buck Converter)

17 Sep 20216 May 2019 by Electrical Workbook

In this topic, you study the Principle of Step Down Chopper and its associated circuit diagram, Waveforms, Modes of operation, & theory.

The buck converter produces a lower average output voltage than the dc source input voltage.

Second Quadrant Chopper or Type B Chopper or Class B Chopper

12 Aug 20226 May 2019 by Electrical Workbook

In this topic, you study Second Quadrant Chopper or Type B Chopper or Class B Chopper v-i plane, working principle, quadrant operation, Applications, waveforms, and Circuit diagrams.

Type B chopper is basically equivalent to Step-Up Chopper.

First Quadrant Chopper or Type A Chopper or Class A Chopper

9 May 20196 May 2019 by Electrical Workbook

In this topic, you study First Quadrant Chopper or Type A Chopper or Class A Chopper v-i plane, working principle, quadrant operation, Applications, and Circuit diagrams.

Type A chopper is basically a Step-Down Chopper.

Four Quadrant Chopper or Type E Chopper or Class E Chopper

28 Sep 20205 May 2019 by Electrical Workbook

In this topic, you study Four Quadrant Chopper or Type-E Chopper or Class E Chopper v-i plane, working principle, quadrant operation, and Circuit diagrams.

Type E chopper is a four-quadrant chopper.

Buck Boost Regulator Peak to Peak Ripple Current of Inductor Expression Derivation

9 May 20195 May 2019 by Electrical Workbook

In this topic, you study How to derive an expression for Peak to Peak ripple current for Buck-Boost Regulator.

The buck-boost regulator can produce an average output voltage less than or greater than the dc source input voltage. Let us assume large filter capacitance C connected across the load so that output voltage remains almost constant. The Resistive load is considered.