Power Supplies

Power Supplies
Power Supplies
A power supply is an electrical device that supplies power to an electrical load. The power supply draws current from an input power source like main power lines, batteries, fuels cells, and generators, and delivers the correct voltage, current and frequency to the load.

Power supplies can be standalone, or built into the load they power. Standalone supplies like benchtop units, inverters and converters typically limit main line current to safe levels before delivering power to the load. Built-in units perform similar functions for desktop computers and other consumer electronics devices.

Power supply units can deliver AC or DC power, convert from one signal to the other, regulate current, voltage, and frequency, provide overload protection, and provide an uninterruptible source of power in the event of lost source power.

Power Supplies: Learn About Power Supplies Here > All industrial electronic devices require power sources or power supplies. A power supply is an electronic mechanism that changes AC line power to one or more individual DC outputs. This is accomplished via circuits that convert electrical input power - either AC or DC. Simply, power supplies change AC line voltage and current into DC power in preparation for consumption by another device or machine.

These systems are complex and have specific requirements. The intensity and the type of current used to power these industrial electronic devices are important to consider when picking the correct power supplies to make sure that the energy going to the circuit in question is powered correctly and the right type (i.e. DC or AC).

Power supplies can be broken down into families: Linear, Switching and Unregulated. Within those families are categories: AC adapters, AC Battery Chargers, DC Battery Chargers, Benchtop Power Supply, DC/AC Inverters, DC/DC Converters and Frequency Converters.