GENERATOR OF MULTIPHASE SYSTEM OF EMF USING A BLOCK OF DIODES FOR CUTTING TWICE NUMBER OF POWER SWITCHES

摘要

FIELD: electrical equipment.;SUBSTANCE: invention relates to the field of electrical equipment, and is intended to generate the voltages multiphase system with a given frequency and a specified number of phases based on the use of pulsed equipment. Device can be used both in stationary and mobile systems, including robotics, for supply of multiphase AC motors, as well as for supply of other multiphase consumers of electric energy with different from standard power frequency. Use of diodes in the device circuit makes it possible to reduce more than twice the number of power switches used for switching in comparison with the previously proposed device. This allows reducing dimensions and weight of the device, improving its power characteristics due to reduction of losses in power switches, and improving reliability of the device. Device includes control unit, providing cyclic, with given period of T alternate supply of control pulses with duration TI=T/n, which control opening of electronic power switches located in switching unit, block of diodes, containing modules D1, D2, … Dm, which makes it possible to reduce in two (and more) times the number of power switches, switching unit, which provides connection by means of power switches to output terminals of switching unit of voltage sources generated by power supply unit, and a power supply unit including a set of constant voltage sources of a given value. Each voltage source in the sequence specified by the control unit is connected for a time interval by TI tongs located in the switching unit to the output terminals of the switching unit.;EFFECT: wider range of tools for the same purpose.;1 cl, 6 dwg