Description
- This is an electrical device that supplies electric powerto anelectrical load.
- The primary function of a power supply is to convertelectric currentfrom a source to the correctvoltage,current, andfrequencyto power the load.
- As a result, power supplies are sometimes referred to aselectric power converters.
- Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power.
- Examples of the latter include power supplies found in desktop computers and consumer electronics devices.
- All power supplies have apower inputconnection, which receives energy in the form of electric current from a source, and one or morepower outputconnections that deliver current to the load.
- The source power may come from theelectric power grid, such as anelectrical outlet,energy storagedevices such asbatteriesorfuel cells,generatorsoralternators,solar powerconverters, or another power supply.
- The input and output are usually hardwired circuit connections, though some power supplies employ wireless energy transfer to power their loads without wired connections.
- This is AC to DC power supply.
- DC power supplies use AC mains electricityas an energy source.
- This power supply will employ a transformerto convert the input voltage to a higher or lower AC voltage.
- Arectifieris used to convert the transformer output voltage to a varying DC voltage, which in turn is passed through anelectronic filterto convert it to an unregulated DC voltage.







Reviews
There are no reviews yet.