Ac dc power supply

  • Supply Type Manufacturer, Exporters, Suppliers
  • A power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as
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Macmilan Systems

Yeshwanthpur, Bangalore

Business Type : Retailer

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A power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power Converters. Some power supplies are discrete, stand-alone devices.

Adjustable power supplies allow the output voltage or current to be programmed by mechanical controls (e.g. knobs on the power supply front panel) or by means of a control input, or both. An adjustable regulated power supply is one that is both adjustable and regulated. An isolated power supply has a power output that is electrically independent of its power input; this is in contrast to other power supplies that share a common connection between power input and output.

A DC power supply is one that supplies a constant DC voltage to its load. Depending on its design, a DC power supply may be powered from a DC source or from an AC source such as the power mains.

Some DC power supplies use AC mains electricity as an energy source. Such power supplies will sometimes employ a Transformer to convert the input voltage to a higher or lower AC voltage. A rectifier is used to convert the transformer output voltage to a varying DC voltage, which in turn is passed through an electronic filter to convert it to an unregulated DC voltage

Power supplies often have protection from short circuit or overload that could damage the supply or cause a fire. Fuses and circuit breakers are two commonly used mechanisms for overload protection.

A fuse contains a short piece of wire which melts if too much current flows. This effectively disconnects the power supply from its load, and the equipment stops working until the problem that caused the overload is identified and the fuse is replaced. Some power supplies use a very thin wire link soldered in place as a fuse. Fuses in power supply units may be replaceable by the end user, but fuses in consumer equipment may require tools to access and change.

A circuit breaker contains an element that heats, bends and triggers a spring which shuts the circuit down. Once the element cools, and the problem is identified the breaker can be reset and the power restored.


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  • Business Type Manufacturer / Exporters / Suppliers
  • Member Since 2016
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  • Macmilan Systems
  • C 2, Jai Bharath Industrial Estate Yeshwanthpur, Bangalore, Yeshwanthpur, Bangalore, Karnataka - 560022 India
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