Inverter control device and inverter control method

Details Inverter control device and inverter control method Inverter control device and inverter control method

2006-10-24

2006-10-24

Nguyen, Linh Van (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Multiplex

C341S116000, C341S117000

Reexamination Certificate

active

07126514

ABSTRACT:
An inverter control microcomputer10comprises AD converters21–23, a selector control circuit31, and a selector32. The selector32selects three analog signals from among inputted seven analog signals in accordance with control from the selector control circuit31. A control signal generation section, which comprises a CPU11and an inverter control signal generation circuit17, generates a motor control signal Cntl based on three digital values obtained by the respective AD converters21–23. By performing AD conversion concurrently for arbitrary three analog signals, it is possible to eliminate a phase shift between the detected analog signals and perform motor control with high precision. Thus, it is possible to detect an analog signal necessary for control of a motor, etc., at an appropriate timing without increasing the number of AD converters.

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