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Another requirement is to provide low-voltage electricity to a device from mains electricity; this would be done by what is usually called a power supply.Most modern electronic devices require between 1.5 and 24 volts DC; lower-powered devices at these voltages can often work either from batteries or mains.
Conversion of 50 Hz distribution to 60 Hz is ongoing. [34] Haiti: A, B 110 V 220/380 V 110/220 V 60 Hz Honduras: A, B 110 V 208 V 230 V 240 V 460 V 480 V 60 Hz Hong Kong: G D, M [35] BS 1363 BS 546 220 V 380 V 50 Hz Type G is most common. Hungary: C F MSZ EN 50075 MSZ 9781-2 230 V 400 V 50 Hz Iceland: C, F 230 V 400 V 50 Hz India
A power converter is an electrical device for converting electrical energy between alternating current (AC) and direct current (DC). It can also change the voltage or frequency of the current. Power converters include simple devices such as transformers , and more complex ones like resonant converters .
The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances ...
Mains electricity or utility power, grid power, domestic power, and wall power, or, in some parts of Canada, hydro, is a general-purpose alternating-current (AC) electric power supply.
In a so-called balanced power system, sometimes called "technical power", an isolation transformer with a center tap is used to create a separate supply with conductors at balanced voltages with respect to ground.
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