Motor control drive circuit

Details Motor control drive circuit Motor control drive circuit

2005-03-01

2005-03-01

Martin, David (Department: 2837)

Electricity: motive power systems

Positional servo systems

Pulse-width modulated power input to motor

C318S810000, C318S811000, C388S829000, C341S152000

Reexamination Certificate

active

06861815

ABSTRACT:
Embodiments of present invention may provide a motor control drive circuit for driving a motor by receiving signals from a digital signal control device. The motor control drive circuit includes a switching unit receiving signals that have undergone pulse width modulation (PWM signals) in the digital signal control device, and converting a switching state based on the input signals; and a controller receiving from the switching unit switching operational signals that vary according to a duty ratio of the PWM signals, receiving digital signals from the digital signal control device, and varying a voltage gain for control of the drive motor. In the motor control drive circuit of one embodiment of the present invention, motor rotation is controlled by the duty ratio of digital signals without the use of a DAC. This allows for the design of an independent digital signal processing device, and enables compatibility with various digital signal processing devices.

REFERENCES:
patent: 3597693 (1971-08-01), McNeilly
patent: 4139811 (1979-02-01), Klinger
patent: 4622500 (1986-11-01), Budelman, Jr.
patent: 4680516 (1987-07-01), Guzik et al.
patent: 4977360 (1990-12-01), Leleve
patent: 5268987 (1993-12-01), Sakoh
patent: 5361025 (1994-11-01), De Filippis et al.
patent: 5559414 (1996-09-01), Minabe et al.
patent: 5687277 (1997-11-01), Matsuzaki et al.
patent: 5801504 (1998-09-01), Endo et al.
patent: 6307336 (2001-10-01), Goff et al.
patent: 6441578 (2002-08-01), Mir et al.
patent: 6509708 (2003-01-01), Cho et al.
patent: 6515443 (2003-02-01), Kelly et al.
patent: 6563283 (2003-05-01), Iwashita et al.
patent: 6657572 (2003-12-01), Lee et al.
patent: 6768779 (2004-07-01), Nielsen
patent: 03007082 (1991-01-01), None
patent: 03215189 (1991-09-01), None
patent: 04121084 (1992-04-01), None
patent: 2001-119972 (2001-04-01), None
patent: 1002694500000 (2000-07-01), None

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