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This research work is organized in two sections. Performance comparison of single phase half bridge inverter and single phase full bridge inverter is done in the first section. It is observed the output current and output voltage of full bridge inverter is twice and generates less total harmonic distortion as compared to half bridge inverter. In the second section, performance comparison of Unipolar...
Electric Vehicle (EV) has emerged as a solution for the growing concerns on pollution and depleting oil resources all over the world. The performance and efficiency of an EV mainly depends on the power electronic switching devices used in it which, in turn depends on the properties of materials used in its fabrication. Traditional semiconductor material like Silicon has been widely used for the fabrication...
Power semiconductor devices are one of the most essential components in electrical vehicles. Traditionally, silicon has been used as the semiconductor material in switching devices. Si material has reached its technological limits like switching frequency, maximum operation temperature etc., which lead to exploring new semiconductor materials for switching devices. In this paper Wide Band-Gap materials...
This paper presents real time implementation of DSP based PWM control algorithm for 3 phase 4-leg IGBT voltage source inverter. This method is also useful for application in voltage source inverters for adjustable-speed ac drives. PWM method is used to reduce the harmonic content in the output voltage applied to induction motor. The pulses were generated using Texas Instruments TMS 320F28335 DSP controller...
LLC Resonant converters have been popular in recent years by providing highly-efficient, compact isolated power conversion for numerous applications. 48V to 12V and 400V to 12V step-down isolated converters are often required in server, telecom and automotive applications. While the switching losses in LLC converters are eliminated due to zero-voltage switching, the primary-side switch output capacitance...
Speed Controller design via sliding mode control approach of induction motor with different sliding surface and with different speed control approaches of Induction motor are reviewed and presented. DSP based Sliding mode controller implementation approaches are also discussed. Sliding Mode control approach based designed controller provides robust performance with parameter variations and load variations...
Quantum-dot Cellular Automata is a novel nanotechnology that promises low-power, extremely dense and high speed structures for construction of logical circuits at a nano-scale. Moreover, Multiplexers and Demultiplexers (MUX-DEMUX) are the useful components for the design of many important logic circuits. This paper proposes the novel and efficient designs of modular MUX and DEMUX in the QCA. The proposed...
The radio spectrum (3kHz – 300GHz) has become saturated and proven to be insufficient to address the proliferation of new wireless applications. Cognitive Radio Technology which is an opportunistic network and is equipped with fully programmable wireless devices that empowers the network by OODA cycle and then make intelligent decisions by adapting their MAC and physical layer characteristics such...
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