M-PHASE INVERTER CONTROL DEVICE Russian patent published in 1994 - IPC

FIELD: electronic engineering. SUBSTANCE: device has clock generator 1, comparator 2, 2m power amplifiers 3, 2m power switches of inverter 4, m current sensors 5, D flip-flop 6, m-phase rectifier 7, n-bit counter 8, read-only memory 9 with n-1 address input and m+1 output. EFFECT: reduced losses in inverter power switches at load equal to and lower than rated due to implementing signal change-over operations within output voltage period, improved reliability of inverter in transients due to limiting current flow through inverter power switches according to instant values, simplified implementing scheme. 2 cl, 4 dwg