Direct current may be converted from an alternating current supply by use of a rectifier, which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alternating current via an inverter.
direct current may be converted from an alternating current supply by use of a rectifier which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction direct current may be converted into alternating current via an inverter