Driving apparatus for a brushless motor and rotor position detec

Details Driving apparatus for a brushless motor and rotor position detec Driving apparatus for a brushless motor and rotor position detec

1997-04-18

1998-12-15

Ro, Bentsu

Electricity: motive power systems

Limitation of motor load, current, torque or force

318138, 318721, H02P 616

Patent

active

058501304

ABSTRACT:
To use a sinusoidal wave as a driving waveform, and reduce noise and vibration, in an inexpensive constitution, a driving apparatus for the brushless motor includes a first data latch 16 for holding the value of address Au at an output signal timing of a first edge detecting means 10, and issuing as address value Aus, and third frequency adjusting means 20, including it, for issuing the result of adding rotating frequency Fsen to the product of address error Aerr obtained by subtracting the address value Aus held by the first data latch 16 from the reference address value Aref, rotating frequency Fsen, and control gain Ka, to an address counter 9 as frequency command Fref.

REFERENCES:
patent: 5122719 (1992-06-01), Bessenyei et al.
patent: 5194794 (1993-03-01), Shamoto
patent: 5451945 (1995-09-01), Alhorn et al.
patent: 5642461 (1997-06-01), Lewis

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