FIELD: microwave equipment. SUBSTANCE: alternating current or direct current microwave has rotating inverter, which inverts direct current source into alternating current source by means of production of rotation momentum. High-voltage transformer is connected to standard direct current power supply or to alternating current power supply, which is inverted by means of rotating inverter. It produces high- voltage at output. In addition device has magnetron, which is supplied by high-voltage from output of high-voltage transformer and emits electromagnetic waves in decimeter or millimeter band. In addition device has power control unit, which detects signal from power selection button and prevents simultaneous connection of alternating current and direct current power supplies to oven. This results in possibility to prevent its damage or overload of electric units of microwave oven. Only one power supply is selected from set of standard power supply and direct current power supply to achieve proper operations of microwave oven. Voltage of storage battery is monitored and shown on display, thus preventing total discharge of storage battery. EFFECT: increased functional capabilities. 17 cl, 10 dwg
