A family of high voltage gain single-phase hybrid switched-capacitor pfc rectifiers Do Your Projects With Technology Experts... To Get this projects Call : 9566355386 / 99625 88976 Visit : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com

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A Family of High-Voltage Gain Single-Phase
Hybrid Switched-Capacitor PFC Rectifiers
Abstract
Within the passive solutions, converters that have become
popular are the voltage multipliers, e.g., Cockcroft–Walton and
Dickson converters. These consist only of diode capacitor cells
and can be cascaded in several stages in order to increase the
voltage gain. Also, this kind of structure has not controlled
semiconductors, besides having low voltage stress on the
components. However, such structures, because they operate at
the frequency of the power grid, present high capacitance, which
increases the volume and cost. In addition, the current drawn
from the power grid has a strong harmonic distortion, which
makes it prohibitive for some applications. Another drawback is
the impossibility of regulating the output voltage, being the
function of output load and input voltage and, therefore, cannot
operate as a universal power supply.

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Copyright © 2015 LeMeniz Infotech. All rights reserved
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LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Existing system
The three-level boost topology in the high power and/or
high voltage single phase applications, significant advantages
will be achieved. With the three level boost converters, the
inductance of the boost inductor can be greatly reduced, and the
semiconductor device voltage rating is only half of the output
voltage. As a result, the converter power density and efficiency
will be significantly increased.
Proposed system
Every converter is composed of eight to ten diodes, eight
capacitors and, depending on the topology, could have one or
two power switches. The switches of the topologies are
represented by insulated gate bipolar transistors. However, other
technologies of semiconductors, e.g., MOSFET’s can be used.
Due to the connection with the midpoint 0, the semiconductors
are subjected to one-quarter of the dc-link voltage in contrast to
one-half of the full dc-link voltage in typical three-level
rectifiers.

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Copyright © 2015 LeMeniz Infotech. All rights reserved
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LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Advantages:
 Reduced number of power switches to achieve high-voltage
gain.
 Reduced losses and lower number of gate-drivers circuits.
Applications:
 Renewable energy systems.
 X-ray systems.
 Motor drivers.

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Copyright © 2015 LeMeniz Infotech. All rights reserved
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LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Block diagram
BUFFER
circuit
5VDC
PIC
controller
circuit
Gate driver
circuit
12 V
DC
Load
Control
rectifier
Single
phase AC
supply
Voltage
multiplier
circuit

5. Do Your Projects With Domain Experts…
Copyright © 2015 LeMeniz Infotech. All rights reserved
Page number 5
LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Tools and software used
 MPLAB – microcontroller programming.
 ORCAD – circuit layout.
 MATLAB/Simulink – Simulation.