BY MOHAN K M, GANESH C, SHIVARUDRAPPA G FROM PESIT COLLEGE BANGALORE AS A MINI-PROJECT

1. 1Ф PWM SINE WAVE INVERTER
BY: MOHAN K M
SHIVARUDRAPPA G
GANESH C
UNDER THE GUIDANCE OF
MRS. GAYATHRI DEVI B
ASSISTANT PROFESSOR
DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGG
PESIT

2. INTRODUCTION
• PROJECT FOCUSES ON DC TO AC CONVERSION.
Square wave
inverter
DIFFERENT TYPE OF DC-AC INVERTERS
Modified sine
wave inverter
Pure sine
wave inverter.
• THIS PROJECT FOCUSES ON PURE SINE WAVE GENERATION

3. METHODOLOGY
 CONVERSION FROM DC-AC.
I.
II.
LVDC-LVAC THEN STEP UP TO HVAC.
LVDC-HVDC THEN CONVERTING TO AC.
 THIS PROJECT FOCUSED ON THE 1ST METHOD

4. BLOCK DIAGRAM
• DC LOW VOLTAGE TO LOW VOLTAGE AC THAN STEP UP TO HIGH VOLTAGE Constant/Variabl
AC
e DC Source
INUT 12V
DC
MOSFET DRIVE
SINE
WAVE
GENERAT
OR
TRIANGLE
WAVE
GENRATOR
PULSE
GENRATOR
MOSFT
H-BRIDGE
FILTER
PURE SINE
WAVE
OUTPUT

5. Design of each block

sine wave generator **

triangle wave generator **

Bridge **

Mosfet driver **

Filter **

6. CIRCUIT DIAGRAM**

8. APPLICATION
INVERTERS ARE USED FOR MANY APPLICATIONS, AS IN SITUATIONS WHERE LOW VOLTAGE DC SOURCES SUCH AS
BATTERIES, SOLAR PANELS OR FUEL CELLS MUST BE CONVERTED SO THAT DEVICES CAN RUN OFF OF AC POWER.
ONE EXAMPLE OF SUCH A SITUATION WOULD BE CONVERTING ELECTRICAL POWER FROM A CAR BATTERY TO RUN
•
•
•
•
•
•
LASER PRINTERS.
LAPTOP COMPUTERS.
POWER TOOLS.
DIGITAL CLOCKS.
MEDICAL EQUIPMENT.
TV AND CELL PHONES.

9. REFERENCE
 POWER ELECTRONICS BY: RASHID
 ADVANCED POWER ELECTRONICS BY:NED MOHAN
 POWER ELECTRONICS BY:BIMBRA
 HTTPS://WWW.GOOGLE.CO.IN/#SCLIENT=PSYAB&Q=PWM%20BASED%20SINE%20WAVE%20INVERTER&OQ=&GS_L=&PBX=1&BAV=
ON.2,OR.R_CP.R_QF.&BVM=BV.47244034,D.BMK&FP=B5F964B073A2B6D9&BIW=1366&
BIH=667&PF=P&PDL=300 WWW.ELECTRONICSFORYOU.COM
 HTTP://EN.WIKIPEDIA.ORG/WIKI/PWM_BASED_SINE_WAVE_INVERTER

WWW.POWERDESIGNERS.COM/INFOWEB/DESIGN_CENTER/ARTICLES/PWM/PWM.S
HTM.