Current-Fed Resonant Full-Bridge Boost DC/AC/DC Converter
INDIRECT dc/ac/dc converters utilizing an isolation transformer
are widely used in different applications, such as
battery chargers and dischargers, uninterruptible power systems,
alternative energy systems, hybrid electric vehicles, and
medical X-ray imaging.
In the case of the applications where low input voltages have
to be converted to high output voltages, current-fed converters
are used, whereas in the case of higher power applications, fullbridge
boost conv ....etc

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Implementation of Full-Bridge Current-Fed Resonant Boost Converter using PIC microcontroller
ABSTRACT
This paper presents a current-fed full-bridge boost DC-ACDCconverter with transformer isolation operating withoutswitching power dissipation. The output voltage is regulatedby dc-ac converter whose frequency changes with a constantturn-off time of transistors. The proposed converter is devoidof parasitic oscillations, as all of the parasitic capacitancesand inductances are included in a resonant tank circuit. Themain advantage of such ....etc

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CHAIN DRIVES IN LOW TORQUE DRIVES AND REDUCING PULSATIONS
INTRODUCTION TO DRIVES

Mechanical components used for power transmission.It may be belt, chain or gear depending on engine design parameters like - Distance between crankshaft and camshaft, engine maximum speed, engine-torque and engine construction cost.- Power transmission is done from one shaft to another shaft which may or may not rotate at same spe ....etc

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Difference between the chopper fed and converter fed drives ....etc

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Abstract
This paper deals with a reduced rating delta-polygon
autotransformer based twenty-four-pulse ac-dc converter feeding
variable frequency induction motor drives (VFIMD's) for
improving power quality at the point of common coupling (PCC).
The proposed twenty four-pulse ac-dc converter is realized on the
principle of dc ripple re-injection technique for harmonic
mitigation. The design of the proposed autotransformer is
developed alongwith the necessary modifications required for
making it suitable for retrofit applications ....etc

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DIRECT TORQUE CONTROL FOR MATRIX CONVERTER-FED THREE PHASE INDUCTION MOTOR WITH HYBRID PSO
ABSTRACT
Direct Torque Control (DTC) for Induction Motors using Matrix Converters is a high performance motor
control scheme with fast torque and flux responses. This paper presents a new control scheme based on
hybrid particle swarm optimization (HPSO). The main advantages of the matrix converter are combines
with those of the DTC technique, generating the required voltage vectors under 0.9 input power factor
operations. The results ....etc

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2.1 INTRODUCTION
Direct-current motors are extensively used in variable-speed drives and positioncontrol
systems where good dynamic response and steady-state performance are
required. Examples are in robotic drives, printers, machine tools, process rolling mills,
paper and textile industries, and many others. Control of a dc motor, especially of the
separately excited type, is very straightforward, mainly because of the incorporation of
the commutator within the motor. The commutator brush allows the motor-devel ....etc

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Presented By
A.ARTHI JANNIE


HARMONIC ANALYSIS OF SEPARATELY EXCITED DC MOTOR DRIVES FED BY SINGLE PHASE CONTROLLED RECTIFIER AND PWM RECTIFIER
ABSTRACT
PWM rectifier is an ac to dc power converter which is implemented using power electronic semiconductor switches such as MOSFET, IGBT. Different from diode bridge rectifiers, PWM rectifiers achieve bidirectional power flows,which can be extensively used in battery charger, UPS system, regulated dc voltage source. SCR converters provide low power fac ....etc

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difference between chopper fed drives and converter fed drives pdf ....etc

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