Rectifier Essay

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classified according to the type of the input and output power
• AC to DC (rectifier)
• DC to AC (inverter)
• DC to DC (DC-to-DC converter)
• AC to AC (AC-to-AC converter)
1.2 AC to DC converter(rectifier)
A rectifier is an electrical device that can converts alternating current into direct current. The process is known as rectification. Rectifiers have many uses, but mostly used as components of DC power supplies and high-voltage direct current power transmission system.
Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Rectifiers have many applications such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter to produce a steady current.
1.3 DC to AC converters (inverters)
DC to AC converters converts the DC current into AC current. These converters have many applications few of them are listed below. Adjustable speed drives (ASD), uninterruptable power supplies (UPS), active filters, Flexible AC transmission systems (FACTS), voltage compensators, and photovoltaic generator.this is classified into two types: voltage source …show more content…

Such electronic devices often contain several sub-circuits, each with its own voltage level requirement different from that supplied by the battery or an external supply (sometimes higher or lower than the supply voltage). Additionally, the battery voltage declines as its stored power is drained. Switched DC to DC converters offer a method to increase voltage from a partially lowered battery voltage thereby saving space instead of using multiple batteries to accomplish the same

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