Digital slope compensation in a current controller

Details Digital slope compensation in a current controller Digital slope compensation in a current controller

1995-01-30

1996-06-11

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318432, 318601, 318603, H02P 610

Patent

active

055258743

ABSTRACT:
Stable current control to an inductive load uses a digital driver having registers loaded with load control parameters from a microprocessor. The parameters, along with a counter responsive to clock pulses, control a pulse period and a pulse width which are used to operate an FET in series with the load to control load current. Current mode control develops a decreasing current limit voltage in each pulse period by decrementing a down counter at a rate and from an initial value commanded by the microprocessor, and converting the value to an analog current limit signal. The signal is compared to a load current feedback signal and the pulse width is truncated if the load current reaches the current limit signal.

REFERENCES:
patent: 4558264 (1985-12-01), Weischedel
patent: 4651068 (1987-03-01), Meshkat-Razavi
patent: 4746843 (1988-05-01), Taenzer
patent: 4757241 (1988-07-01), Young
patent: 4760316 (1988-07-01), Hedlund
patent: 4841207 (1989-06-01), Cheyne
patent: 5079453 (1992-01-01), Tisinger et al.
patent: 5210474 (1993-05-01), Oswald
patent: 5296787 (1994-03-01), Albrecht et al.
patent: 5466997 (1995-11-01), Utenick et al.
Unitrode Integrated Circuits, "The UC3842/3/4/5 Series of Current-Mode PWM IC's", 1987-88, pp. 9-107 to 9-118, Merrimack, NH 03054.

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