DIGITAL MODULATOR FOR CHANGING FREQUENCY OF TWO-PHASE INDUCTION MOTOR Russian patent published in 1999 - IPC

Abstract RU 2126198 C1

FIELD: pulse engineering; control system converters. SUBSTANCE: digital modulator has square-pulse generator 1, counters 2., 3, 4, character flip-flop 5, flip- flop 6, OR gates 7-10, inverter 11, AND gate 12, NAND gates 13-16, decoder 17, pulse shapers 18, 19, adder 20, register 21, clipping circuit 22, reset circuit 23, output buses 24-27, input-signal bus 28, and character bus 29. EFFECT: simplified design, improved efficiency in changing induction motor frequency. 4 dwg

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RU 2 126 198 C1

Authors

Starikov A.V.

Dates

1999-02-10—Published

1997-02-03—Filed