An inverter circuit is used to perform a function oppositeto that of a rectifier circuit. An inverter converts a supply of D.C input voltage to a Symmetrical A.C. output voltage of a desired frequency and magnitude. This output voltage can be fixed or variable at a fixed or variable frequency. The variable output voltage is calculated by changing the input D.C. voltage, taking the inverter at a constant gain or by changing the gain of the inverter, taking a fixed D.C. input valtage that is gernrally found by PWM contral within the inverter.
Category Archives: Power Electronics
Power Electronics
Power electronics is a subject that concerns the application of electronic-principles into situations that are rated at power level rather than signal level. It may also be defined as a subject that deals with the apparatus and equipment working on the principle of electronics but rated at power level rather than signal level.
Advantages of power electronics are as follows –
(i) High reliability of power-electronic converter systems.
(ii) High efficiency due to low loss in power-semiconductor devices.
(iii) Fast dynamic respones of the power-electronic systems as compared to electromechanical converter systems.
(iv) Small size and less weight result in less floor space and therefore lower installation cost.
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