A power converter is a power supply unit (PSU) that not only delivers energy to an electronic device from an electrical outlet, but also regulates the current to meet the devices specific requirements. If you have any type of sophisticated electronics such as computers, laptops, high end audio equipment, cell phones etc, the odds are they also incorporate a power supply unit that also regulates the current.Most power converters are usually called Switched Mode Power Supplies (SMPS); they include a power supply unit and a circuit inside the unit to regulate the current.There are four major types of SMPS, they include: AC (alternating current) to DC (direct current) out (called a converter), DC in to DC out, AC in to AC out and DC to AC out. A DC to AC out device is usually called an inverter.Common applications that use SMPS are laptop computers and audio or video equipment that can work from either a home electricity outlet or a car's DC outlet. ----------------------------------------------------- gillberk CONNECTOR
