These transformed voltages are also sent via AC since AC is easier to transmit. However, since the high AC voltage cannot be used in the home as-is, it is transformed (stepped down) in stages via several substations before finally reaching 100V or 200V at the outlet. Rates are based on a daily average of OANDA Coporation prices, updated at 22:00 UTC each day. Simply put, transmitting high AC voltage at low current minimizes transmission (energy) loss. OANDA Corporation is an NFA regulated company based in the United States. These power plants are often located in mountainous and coastal areas, making it more advantageous to send AC voltage to urban areas. If most electronic products and devices are DC powered, why not send DC power from the beginning?Īs you may know, electricity is generated at power plants from hydro, nuclear, and thermal sources. MCUs) and lamps that have switched to energy-saving LEDs, AC-DC conversion is required. A device that converts electricity from DC form to AC form using electronic circuits is known in power industry as inverter. Cycloconverters are majorly called as frequency changers that convert the AC power with one input frequency to AC power with a different. But in a first approach and to define basic topologies, it is interesting to assume that no loss occurs in the converter process of a power converter. Power converter design aims at improving the efficiency. Some motors and lamps can be driven even with AC voltage, but for motors that include control circuitry (i.e. 1: Power converter definition An ideal static converter controls the flow of power between the two sources with 100 efficiency. On the other hand, most electronic devices operate at 3.3V or 5V DC.Ĭonsequently, it is necessary to convert from AC to DC voltage. Why is an AC-DC Converter required?Įlectricity supplied to homes is typically 100V or 200V AC. An AC-DC Converter is a device that converts an AC voltage to DC voltage.
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