DEVICE FOR FORMING OUTPUT VOLTAGE OF AUTONOMOUS INVERTER FOR CONTROLLING AN ASYNCHRONOUS ENGINE Russian patent published in 2004 - IPC

FIELD: converters engineering.

SUBSTANCE: device has basic setting block and tact generator, bearing frequency generator, voltage control generator, values selection block, condition realization block and time delay block. Values selection block has means for counting points inside a sector and ROM block for times of enabling of inverter transistors. Condition realization block has means for counting intervals, sectors counter and ROM block for inverter conditions. Output of basic setting block is connected to sectors counter, to means for counting intervals, means for counting points inside a sector, to ROM block for times of enabling of inverter transistors. Output of tact generator is connected to means for counting points inside a sector, output of which is connected to ROM block for times of enabling of inverter transistors. Output of bearing frequency generator is connected to intervals counter, and output of voltage control generator is connected to time delay block. Inverter conditions ROM block is connected to time delay block, output of which is connected to intervals counter. Output of sectors counter is connected to inverter conditions ROM block, which is connected to output of intervals counter with autonomous voltage inverter.

EFFECT: better quality of output voltage of autonomous inverter.

6 dwg, 1 tbl