MULTI-ZONE DC/AC CONVERTER Russian patent published in 2020 - IPC H02M7/217 

FIELD: electricity.

SUBSTANCE: multi-zone DC to AC converter, that is multizone current inverter, relates to electrical engineering and is required for supply of controlled AC motors. Multi-zone DC-to-AC converter comprises current source, 3-phase bridge circuit, in which each bridge arm is made of 2 groups of n series-connected controlled valves, each of which is made in the form of series connection of n controlled valves and uncontrolled valve, to points of connection of valves in each group in each arm of the bridge there are two additional groups of uncontrolled valves, wherein first group of n controlled valves is connected by cathode of extreme uncontrolled valve to load, and anode of other extreme controlled valve group - to "+" current source, second group of controlled valves is connected by anode of extreme uncontrolled valve to load, and cathode of the other extreme controlled valve - to "-" current source, wherein between cathode and anode of series-connected controlled gates of first group and load includes diodes of first additional group, cathodes to load, similarly between diodes of second additional group and anodes to load are also connected between cathode and anode of controlled valves of the second group and load.

EFFECT: proposed multi-zone DC to AC converter is characterized by smaller number of uncontrolled gates, which leads to improvement of weight and size parameters and simplification of converter.

1 cl, 3 dwg