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PWM Presentation

The document presents information on a single phase PWM inverter project. It includes: 1) An introduction describing PWM inverters and their advantages over conventional inverters. 2) Diagrams of the PWM inverter's block diagram and circuit, which include MOSFETs, an IC PWM chip, battery, transformer, and heat sink. 3) Descriptions of the main components, including how MOSFETs and the IC chip function in the circuit. 4) Advantages of PWM inverters like high efficiency and fewer required components compared to other inverters. Disadvantages include greater complexity and switching losses. 5) Applications like UPS

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Mohammad Faizayn
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90 views17 pages

PWM Presentation

The document presents information on a single phase PWM inverter project. It includes: 1) An introduction describing PWM inverters and their advantages over conventional inverters. 2) Diagrams of the PWM inverter's block diagram and circuit, which include MOSFETs, an IC PWM chip, battery, transformer, and heat sink. 3) Descriptions of the main components, including how MOSFETs and the IC chip function in the circuit. 4) Advantages of PWM inverters like high efficiency and fewer required components compared to other inverters. Disadvantages include greater complexity and switching losses. 5) Applications like UPS

Uploaded by

Mohammad Faizayn
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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BANSAL INSTITUTE OF ENGINEERING & TECHNOLOGY

LUCKNOW
BACHELOR OF TECHNOLOGY
Electrical Engineering

PRESENTATION
ON
SINGLE PHASE PWM INVERTER

PRESENTED BY- GUIDE BY-


TEJ PRAKASH VERMA
MOHAMMAD FAIZAN (1904220200023)
RANJEET PRAJAPTI (1904220200030)
UBAIDULLAH RAHMANI (1904220200044)
Contents
• Introduction
• Pulse Width Modulation
• Block Diagram
• Components
• Advantages
• Disadvantages
• Applications
• Actual Project
• Circuit Diagram
2
Introduction
• In power electronics technology, converting direct current into alternating current is called inversion. Inverter
circuits are widely used, for example, inverter circuits are needed when DC power supplies AC loads.

• The inverters based on the PWM technology are more advantageous than the conventional inverter.

3
Pulse Width Modulation
The characteristic of the pulse width modulation (PWM) approach is the generation of pulses with constant
amplitude by changing the duty cycle and pulse duration.
The carrier signal is either a sawtooth or triangular wave with a frequency much higher than the reference
signal.
Block Diagram
Components

• MOSFET
• IC PWM
• Battery
• Transformer
• Heat sink
MOSFET
The transistor possesses high speed switching capability which makes it ideal to use in
applications where high-speed switching is a crucial requirement.

IRFZ44N pinout has three terminals named as Gate, Drain and Source. They are denoted
by the alphabets G, D and S respectively.
IC(SG3525)
The SG3525A series of pulse width modulator integrated circuits are designed to offer improved performance
and lowered external parts count when used in designing all types of switching power supplies.
Battery
Lead-acid batteries are one of the most popular batteries used for a
vast number of applications. Lead-acid batteries are one of the oldest
forms of rechargeable batteries. These batteries functioning is
straightforward as these batteries consist of two electrodes that are
dipped in the electrolyte solution.
Transformer
A transformer is a static electrical instrument employed to transmit the energy in an electrical type between
two or several networks. The important function of this device is to modify the alternating current from one
voltage to another value.
Heat sink
A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by
an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it
is dissipated away from the device, thereby allowing regulation of the device's temperature.
Advantages
• No additional components are required in order to control the output
voltage.
• PWM inverter has less harmonic content as compared to square
wave inverter.
• Low power consumption.
• High energy efficient upto 90%.

1
2
Disadvantage
s
• The complexity of the circuit.
• High switching loss due to the high PWM frequency.
• Though they are cheap to make, the final product is expensive as
the system requires a semiconductor device.

1
3
Application
s
• Uninterruptible power supply (UPS).
• HVDC transmission at lower power level.
• Electric Vehicle Drives

1
4
Actual Project
Circuit Diagram
Thank you

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