Microcomputer for driving induction motor

Details Microcomputer for driving induction motor Microcomputer for driving induction motor

1995-10-05

1997-08-12

Masih, Karen

Electricity: motive power systems

Induction motor systems

Primary circuit control

318567, 318269, 318600, 318727, H02P 528

Patent

active

056569130

ABSTRACT:
A microcomputer has a timer register 10 for storing period data of a carrier, timer registers 4A and 4B for individually storing positive phase and negative phase time width data of a control signal which is synchronized with the carrier, and an operation unit 13 for subtracting the value of the positive phase time width data of the control signal from a value of the period data. The time width data obtained as a subtraction result is supplied to the timer register 4B. The load on the CPU when the revolution of an induction motor is controlled is reduced.

REFERENCES:
patent: 4428053 (1984-01-01), Tol
patent: 4600872 (1986-07-01), Shepard, Jr.
patent: 4628380 (1986-12-01), Quackenbush
patent: 4713718 (1987-12-01), Quayle
patent: 4757242 (1988-07-01), Prather

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