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A voltage regulator is a device used in many items requiring constant voltage. It is an electrical device that is made to regulate and send and maintain a constant regular voltage level. They are in pretty much in every device, gadget, or item that is powered by electricity. There are many different types of voltage regulators – some of which are called – alternator, linear, and P.C. regulators.

Alternator voltage regulators are used with alternators in most motor vehicles to keep the battery charged and running. Here the regulator keeps a constant level of voltage going from the alternator to the battery without it the battery could receive too much voltage damaging the battery or to little causing the battery to die. Normally in the situation the volts are kept between 13.5 and 14.5 volts.

Almost any electronics you have use a linear voltage regulator. These regulators are very basic devices and are very easy to use and almost guaranteed to always work. They use a maintained voltage current supply to keep the right amount of voltage and make sure it is available at the regulator output terminal. To make the output voltage come out at the right value – control circuitry is needed to keep track of the output voltage and change the current source as needed. Designs should restrict the voltage source to allow the regulator to make the greatest amount of load current and still keep a constant regulation.

PC voltage regulators are used in computers like your home desktop. Here the regulator controls the voltage send to the computers microprocessor. Most home computers have power supply that generates power of five volts. But many microprocessors only need 3.5 volts to operate. Here the regulator reduces the 5 volts to the needed 3.5 volts so the microprocessor will work properly. Normally the regulators have many heat sinks around them because they generate large amounts of heat.

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