DC brushless motor drive circuit having input signal compatabili

Details DC brushless motor drive circuit having input signal compatabili DC brushless motor drive circuit having input signal compatabili

1998-07-16

2000-02-01

Salata, Jonathan

Electricity: motive power systems

Switched reluctance motor commutation control

318439, H02P 700

Patent

active

060207000

ABSTRACT:
A motor drive circuit includes an amplifying and comparing circuit, a multiplexer, an input control circuit and a drive pulse generator. The amplifying and comparing circuit receives an output signal from a Hall element and generates an amplified output signal. The input control circuit detects whether the Hall element is a Hall sensor or a Hall IC for controlling the multiplexer to have its output from either the Hall IC or the amplifying and comparing circuit. The drive pulse generator has an input connected to the output of the multiplexer, and has four outputs connected to four MOS transistors respectively for generating clock signals to drive the four MOS transistors to provide driving current to the motor.

REFERENCES:
patent: 4966041 (1990-10-01), Miyazaki
patent: 5250881 (1993-10-01), Yoshino
patent: 5598074 (1997-01-01), Huang
patent: 5604412 (1997-02-01), Okada et al.
patent: 5734241 (1998-03-01), Okada et al.
patent: 5747952 (1998-05-01), Izawa et al.
patent: 5804936 (1998-09-01), Brodsky et al.
patent: 5901268 (1999-05-01), Ando et al.

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