Showing posts with label Power Electronics. Show all posts
Showing posts with label Power Electronics. Show all posts
May 11, 2024
September 21, 2017
Power Electronics : Question Papers
Question paper of Rajasthan Technical University (R.T.U.) asked in previous years have been uploaded. You can down and read these questions as questions are repeatedly asked in exams.
Subject Code : 5EE1A
Subject : Power Electronics
University : R.T.U. (Rajasthan Technical University)
Semester : 5th
Branch : Electrical Engineering
Subject Code : 5EE1A
Subject : Power Electronics
University : R.T.U. (Rajasthan Technical University)
Semester : 5th
Branch : Electrical Engineering
August 17, 2017
Commutation Techniques of SCR (Thyristor) : Power Electronics
SCR (Silicon Controlled Rectifier) is a switch, which is a part of Thyristor family. To turn off this this controlled switch, different methods are used. Sometimes, it is self commutated and sometime forced commutation is required. The commutation techniques used depends upon the type of supply, the required output waveform and on the type of load.
Download the notes in high quality PDF file (19 MB), from below link:
Download same notes in medium size PDF (8 MB), from second link:
 |
| Page 1a |
 |
| Page 1b |
 |
| Page 2a |
 |
| Page 2b |
 |
| Page 3a |
 |
| Page 3b |
 |
| Page 4a |
 |
| Page 4b |
 |
| Page 5a |
 |
| Page 5b |
 |
| Page 6a |
 |
| Page 6b |
 |
| Page 7a |
 |
| Page 7b |
 |
| Page 8a |
 |
| Page 8b |
 |
| Page 9a |
 |
| Page 9b |
 |
| Page 10a |
 |
| Page 10b |
 |
| Page 11a |
 |
| Page 11b |
 |
| Page 12a |
 |
| Page 12b |
 |
| Page 13a |
 |
| Page 13b |
 |
| Page 14a |
 |
| Page 14b |
 |
| Page 15a |
 |
| Page 15b |
 |
| Page 16a |
 |
| Page 16b |
 |
| Page 17a |
 |
| Page 17b |
 |
| Page 18a |
 |
| Page 18b |
 |
| Page 19 |
 |
| Page 19b |
Download the notes in high quality PDF file (19 MB), from below link:
Download same notes in medium size PDF (8 MB), from second link:
August 12, 2017
Turn ON methods of SCR (Thyristor) : Power Electronics
Download the notes in pdf (5 MB) from below link:
Download the same notes in pdf of medium file size (2 MB), from 2nd link:
Download the same notes in pdf of medium file size (2 MB), from 2nd link:
This post consist of the following topics of Power Electronics:
Turn ON methods of SCR
1. Forward Voltage triggering method
2. Light triggering method
3. Thermal triggering
4. dV/dt triggering method
5. Gate triggering
- Continuous gate signal
- Pulse gate triggering
- High frequency gate signal
6. Need of Pulse transformer in firing circuit
7. Diode circuit with LC load, and DC supply
8. Conduction angle of diode when only inductor or capacitor connected to ac supply
 |
| Page 1a |
 |
| Page 1b |
 |
| Page 2a |
July 28, 2017
Power Diode, Semiconductor Controlled Rectifier (Thyristor) :: Power Electronics
Download the notes from below link (14 MB) :
Download the same notes in medium file size (6 MB), from 2nd link
This notes consists of the following Topics:
1. Power Semiconductor Devices
2. Different modes of operation of generalized switch
a) Forward Blocking
b) Forward Conduction
c) Reverse Blocking
d) Reverse Conduction
3. Power Diode
4. Reverse Recovery Characteristics of a Diode
5. Classification of Power Diode based on Reverse Recovery Characteristics
6. SCR
a) Forward Voltage Blocking Mode
b) Forward Conduction
-- Significance of GATE Signal
c) Reverse Blocking Mode
-- Significance of Latching Current
--Significance of Holding Current
7. Procedure to turn off SCR using Commutation Circuit
8. Switching Characteristics of SCR
a) Delay Time
b) Rise Time
c) Spread Time
d) Turn On Time
e) Reverse Recovery Time
Download the same notes in medium file size (6 MB), from 2nd link
This notes consists of the following Topics:
1. Power Semiconductor Devices
2. Different modes of operation of generalized switch
a) Forward Blocking
b) Forward Conduction
c) Reverse Blocking
d) Reverse Conduction
3. Power Diode
4. Reverse Recovery Characteristics of a Diode
5. Classification of Power Diode based on Reverse Recovery Characteristics
6. SCR
a) Forward Voltage Blocking Mode
b) Forward Conduction
-- Significance of GATE Signal
c) Reverse Blocking Mode
-- Significance of Latching Current
--Significance of Holding Current
7. Procedure to turn off SCR using Commutation Circuit
8. Switching Characteristics of SCR
a) Delay Time
b) Rise Time
c) Spread Time
d) Turn On Time
e) Reverse Recovery Time
 |
| Page 1a |
 |
| Page 1b |
 |
| Page 2a |
April 14, 2017
Inverter :: Power Electronics
Download the notes from below link (in pdf) :
Download the notes in small file size from 2nd link:
Following topics are included in this notes:
1. Introduction
2. Classification of inverter:
a) Voltage source inverter
1 phase half bridge inverter
1 phase full bridge inverter
3 phase voltage source inverter
b) Current inverter
c) Series inverter
d) Parallel inverter
1. Voltage Source Inverter (VSI)
Discussed topics in each case are:
a) Circuit diagram
b Modes of operation
c graphs of voltage and current
d) Harmonics of output voltage waveform
1. 1 phase half bridge inverter
2. 1-Phase full bridge inverter
3. 1 phase full bridge inverter for Inductive load
4. 1 phase full bridge inverter for RLC load
5. 3-Phase Voltage source inverter
a) 180 degree conduction mode
b) 120 degree conduction mode
2. Current Source Inverter
Circuit diagram, Modes of operation and graphs
advantages, drawbacks, application of CSI
3. Series Inverter
a) Modes of operation, Circuit diagram
b) Resonant Converter
4. Parallel Inverter
a) Circuit diagram, Modes of Operation
b) Drawbacks
5. Voltage Control of Inverter
a) External Control
b) Internal Control using PWM techniques
6. PWM (Pulse Width Modulation) Techniques:
a) Single Pulse width modulation technique
graphs, harmonics elimination
b) Multiple pulse width modulation techniques
c) Sinusoidal PWM Technique
Download the notes in small file size from 2nd link:
Following topics are included in this notes:
1. Introduction
2. Classification of inverter:
a) Voltage source inverter
1 phase half bridge inverter
1 phase full bridge inverter
3 phase voltage source inverter
b) Current inverter
c) Series inverter
d) Parallel inverter
1. Voltage Source Inverter (VSI)
Discussed topics in each case are:
a) Circuit diagram
b Modes of operation
c graphs of voltage and current
d) Harmonics of output voltage waveform
1. 1 phase half bridge inverter
2. 1-Phase full bridge inverter
3. 1 phase full bridge inverter for Inductive load
4. 1 phase full bridge inverter for RLC load
5. 3-Phase Voltage source inverter
a) 180 degree conduction mode
b) 120 degree conduction mode
2. Current Source Inverter
Circuit diagram, Modes of operation and graphs
advantages, drawbacks, application of CSI
3. Series Inverter
a) Modes of operation, Circuit diagram
b) Resonant Converter
4. Parallel Inverter
a) Circuit diagram, Modes of Operation
b) Drawbacks
5. Voltage Control of Inverter
a) External Control
b) Internal Control using PWM techniques
6. PWM (Pulse Width Modulation) Techniques:
a) Single Pulse width modulation technique
graphs, harmonics elimination
b) Multiple pulse width modulation techniques
c) Sinusoidal PWM Technique
 |
| Page 1a |
 |
| Page 1b |
 |
| Page 2a |
April 09, 2017
Switched Mode, Resonant, Bidirectional A.C. Power Supplies and Multistage Conversion : SMPS :: Power Electronics
Download the notes from below link in pdf:
Download the same notes in low file size from 2nd link:
This notes consist of following topics in brief:
Under the part of A.C. Power Supply
1. Switched Mode A.C. Power Supply
2. Resonant A.C. Power Supply
3. Bidirectional A.C. Power Supply
4. Multistage Conversion
** Reference : Power Electronics by M. H. Rashid
 |
| Page 1a |
April 08, 2017
Push Pull SMPS, D.C. Power Supplies, A.C. Power Supplies : SMPS :: Power Electronics
Download the notes from below link in pdf:
Download the same notes with low file size, from 2nd link:
Download the same notes with low file size, from 2nd link:
This short notes consist of the following topics from Switched Mode Power Supply :
1. Push Pull SMPS Converter
2. Resoanant DC Power Supplies
3. Bidirectional DC Power Supplies
4. A.C. Power Supplies (Uninterrupted Power Supply)
a) UPS circuit with break in supply
b) UPS circuit without break in supply
c) UPS circuit working at fundamental frequency only.
* A.C. Power supply are of three types - Switch Mode A.C. Power Supply, Resonant A.C. Power Supply, Bidirectional A.C. Power Supply
5. Switch Mode A.C. Power Supply
** Reference : M.H. Rashid, Power Electronics
1. Push Pull SMPS Converter
2. Resoanant DC Power Supplies
3. Bidirectional DC Power Supplies
4. A.C. Power Supplies (Uninterrupted Power Supply)
a) UPS circuit with break in supply
b) UPS circuit without break in supply
c) UPS circuit working at fundamental frequency only.
* A.C. Power supply are of three types - Switch Mode A.C. Power Supply, Resonant A.C. Power Supply, Bidirectional A.C. Power Supply
5. Switch Mode A.C. Power Supply
** Reference : M.H. Rashid, Power Electronics
 |
| Page 1a |