Motor speed control integrated circuit

Details Motor speed control integrated circuit Motor speed control integrated circuit

2007-11-27

2007-11-27

Masih, Karen (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S132000, C318S434000, C388S804000

Reexamination Certificate

active

11386160

ABSTRACT:
A motor speed control integrated circuit which controls a rotational speed of a motor by controlling the amount of current flowing through a drive coil of the motor. The integrated circuit comprises a first input terminal to have an analog speed-specifying signal in analog amount specifying the rotational speed of the motor input thereto; a second input terminal to have a digital speed-specifying signal in digital amount specifying the rotational speed of the motor input thereto; a reference voltage circuit that generates a reference voltage corresponding to the analog speed-specifying signal and/or the digital speed-specifying signal; a comparator that compares a speed voltage corresponding to the actual rotational speed of the motor and the reference voltage; and a control signal generator that generates and outputs a control signal for controlling the amount of current flowing through the drive coil based on the comparing result of the comparator.

REFERENCES:
patent: 6204693 (2001-03-01), Forster et al.
patent: 2003-204692 (2003-07-01), None
patent: 2005-080500 (2005-03-01), None

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