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Direct current Essay Topics & Paper Examples

Design and Implementation of a Single Phase Inverter Circuit

Inverters are used to produce constant or variable frequency AC output from a DC source. These inverters can be used for AC applicatio n like driving an induction motor. Such type of inverters in present world are used largely in renewable energy systems to convert DC to AC, example is a PV system where there is a requirement of such type of inverters which can power AC systems such as an induction motor (IM). It is required to produce a pure sinusoidal waveform for the proper functioning of the IM drive. This can be done by incorporating pulse width modulation (PWM) techniques. Technique used in generating a Pulse width modulation is that of the comparison of reference signal which is…

Power Supply

Aimed at system designers whose interest focusses on other fields, this note reviews the basic power supply design knowhow assumed in the rest of the book. In mains-supplied electronic systems the AC input voltage must be converted into a DC voltage with the right value and degree of stabilization. Figures 1 and 2 show the simplest rectifier circuits. In these basic configurations the peak voltage across the load is equal to the peak value of the AC voltage supplied by the transformer’s secondary winding. For most applications the output ripple produced by these circuits is too high. However, for some applications – driving small motors or lamps, for example – they are satisfactory. If a filter capacitor is added after…