Power Electronic Converter for Future African Startups .pdf

Power Electronic Converter For Future African Startups

1. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
1
Power Electronic Converters for
Future African Startups
Odin
Program Manager,
Youth For Technology Foundation // 3D Africa
[email protected] March
2021 //Webinar
2021

2. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
2
Presentation Content
DCtoDCConverters
TypesofDCtoDCConverters
BuckConverter
BoostConverter
BuckBoostConverter
PrintedCircuitBoardDesignofConverters
UpcomingWebinars
Questions&Answers
2021

3. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
3
DC to DC Converters
•ADCtoDCconverterisanelectroniccircuitthat
convertsasourceofdirectcurrent(DC)fromone
voltageleveltoanother.
•DCtoDCconvertersareusedinportableelectronic
devicessuchascellularphonesandlaptop
computers,whicharesuppliedwithpowerfrom
batteriesprimarily.
2021

4. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
4
2021
Types of DC to DC Converters
•Buck Converter
ThisisastepdownDCtoDCvoltageconverterthatbelongstoafamily
ofswitchedmodepowersupply(SMPS).
Abuckconverteroperatinginacontinuousconductionmodeisdefined
mathematicallywiththefollowingequation:
D=Vo/Vi
whereD=Dutycycle,Vo=outputvoltage,Vi=inputvoltage.
D=Ton/(Ton+Toff),
D=Ton/T,
T=1/f,
T=period,f=frequencyofPWM.
Indiscontinuousconductionmode,Vo=Vi/((2L.Io/D^2.Vi.Ts)+1)
WhereL=inductance,Io=outputcurrent.

5. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
5
2021
basic buck converter circuit

6. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
6
2021
buck converter principle of operation

7. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
7
2021
•Boost Converter
ThisisastepupDCtoDCvoltageconverterthatbelongstoa
familyofswitchedmodepowersupply(SMPS).
Aboostconverteroperatinginacontinuousconductionmodeis
definedmathematicallywiththefollowingequation:
Vo/Vi=1/(1-D)
whereD=Dutycycle,Vo=outputvoltage,Vi=inputvoltage.
D=Ton/(Ton+Toff),
D=Ton/T,
T=1/f,
T=period,f=frequencyofPWM
Indiscontinuousmode,Vo/Vi=(1+Vi.D^2.T)/(2L.Io),
WhereL=inductance,Io=outputcurrent

8. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
8
2021
basic boost converter circuit

9. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
9
2021
boost converter principle of operation

10. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
10
2021
•Buck-Boost Converter
ThisisastepupandstepdownDCtoDCvoltageconverterthat
alsobelongstoafamilyofswitchedmodepowersupply(SMPS).
Abuck-boostconverteroperatinginacontinuousconduction
modeisdefinedmathematicallywiththefollowingequation:
Vo/Vi=(-D)/(1-D),thisinreturnyieldsD=Vo/(Vo-Vi)
whereD=Dutycycle,Vo=outputvoltage,Vi=inputvoltage.
D=Ton/(Ton+Toff),
D=Ton/T,
T=1/f,
T=period,f=frequencyofPWM

11. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
11
2021
Abuck-boostconverteroperatinginadiscontinuous
conductionmodeisdefinedmathematicallybythefollowing
equation:
Vo/Vi=-(VixD^2xT)/(2LxIo)
whereD=Dutycycle,
Vo=outputvoltage,
Io=outputcurrent
Vi=inputvoltage.
D=Ton/(Ton+Toff),
D=Ton/T,
T=1/f,
T=period,f=frequencyofPWM

12. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
12
2021
basic buck-boost converter circuit

13. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
13
2021
buck-boost converter operating principle

14. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
14
2021
PrintedCircuitBoardDesign
BuckConverterPCBDesign(Frontplane)

15. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
15
2021
BuckConverterPCBDesign(3DView)

16. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
16
2021
BuckConverterPCBDesign(Backplane)

17. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
17
2021
Upcoming Training
PrintedCircuitBoardDesignforManufacturing
What you'll learn
>Learn what is PCB and the software used in PCB design
>Drawing circuit schematics
>PCB Layout: Single & Two-layer design
>Creation of Gerber files
>Library part creation
>BOM generation
>ERC and DRC
Requirements
Circuit concepts

18. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
18
Questions & Answers
2021

19. Copyright © 2016 Youth for Technology Foundation. All rights reserved.
19
Thank You
2021