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Tuesday, March 4, 2008

IMPLEMENTATION OF STEP UP BOOST CONVERTER USING VIRTUAL INSTRUMENTATION

IMPLEMENTATION OF STEP UP BOOST CONVERTER USING VIRTUAL INSTRUMENTATION
This project describes the implementation of boost type DC/DC converter in continuous conduction mode and discontinuous conduction mode of operation. This converter circuit, step up the input voltage without a transformer. The main application of boost converter is regenerative braking of dc motors and regulated dc power supplies. Triggering pulses for the converter are generated by using IC 555 timer and the voltage across the load can be stepped up by varying the duty cycle. This complete circuit is simulated by using National Instruments Educational Laboratory Virtual Instrumentation Suite and LabVIEW software. The NI ELVIS suite consists of a PCI multifunctional Data Acquisition system, a workstation a prototype board and provides a suite of virtual laboratory instruments. The LabVIEW software is employed for continuous monitoring of the output voltage. The NI ELVIS measurement provides a better solution when compared with traditional instruments.

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