Journal of Electrical & Electronic Systems

I am pleased to introduce Journal of Electrical and Electronic Systems (JEES), Open Access publishing model with a view to provide quick and easy access to the research across the globe. Scholarly open access journal aims to publish most complete and reliable source of information on the discoveries and current developments in the mode of Research articles, Review articles, Case reports, Short communications, etc. The journal publishes high quality manuscripts from basic, fundamental, applied research developments in electricity, electronics and electromagnetism. The journal deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies publishes original papers which are of significant reference value in the arena of electrical and electronic systems. The journal publishes original research papers, review papers, short communications, technical notes, case reports, book reviews, and conference reports

In this paper ladder based all pass and biquad filters are transformed into CFOA based all pass and biquad filters. The ladder based approach is used for design of prototypes. The new circuits have attractive properties of greater linearity, high dynamic rate, high slew rate and high signal bandwidth. A new technique for the conversion has been proposed. The technique uses signal flow graph and converts the existing LC ladder based filter into CFOA based configurations. The design of all pass and Biquad filter has been realized using the proposed technique. The proposed configuration is implemented using CFOA as an active device and all the capacitors are grounded. The new configurations are suitable for various signal processing applications. Simulation has been carried out using simulation software PSpice (v10.2). The simulation results have been demonstrated and discussed.

The locally constructed inverter in this paper has the rating of 1kva and 220V AC output. Requirement for the implementation include locally sourced 100AH 12V deep cycle battery, IC SG3524 oscillator, MOSFET’S and BJT types of transistors, transformer, diodes, resistor, contactor, relay, capacitor and other electronic components. The stages comprise of oscillator unit, MOSFET assembly unit, Transformer unit and battery charge unit. Each constructed unit was independently tested for accurate functionality before the composite was coupled. The inverter in an electronic device converts DC supply to AC. The input is 12VDC and the output is 220V modified sine wave. The waveform and the output stability parameters of these two inverters were compared and the result shows that the locally constructed inverter has a better performance and cost effective than the branded one.