B - Operations – Transporting – 25 – J
Patent
B - Operations, Transporting
25
J
318/23, 341/88,
B25J 9/18 (2006.01) G05D 3/12 (2006.01)
Patent
CA 1279892
ABSTRACT OF THE DISCLOSURE Circuitry is provided for applying a pulse width modulation (PWM) scheme to a brushless DC motor that operates as a robot axis drive. A pulse width modulation (PWM) scheme provides for digital implementation of robot control commands. For this purpose, it provides time stabilized current sampling synchronized to the sampling frequency of the position and velocity loops in the robot control. The brushless drive application circuitry pro- vides for application of the PWM control outputs to commu- tate the motor energization from winding pair to winding pair.
550154
Casler Richard J. Jr.
Daggett Kenneth E.
Johnson Richard A.
Onaga Eimei M.
Casler Richard J. Jr.
Daggett Kenneth E.
Johnson Richard A.
Macrae & Co.
Onaga Eimei M.
LandOfFree
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