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AssigneeCanon Kabushiki Kaisha
InventorsKeiji Harada, Yuichi Naoi, Norio Sugiyama, Noboru Hada
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The technique of the present disclosure has an object to perform PWM control of DC motors with a CPU and a motor drive circuit connected by a smaller number of serial interfaces, and provides a motor drive circuit comprising: energization control units to switch the directions of energization of motors by using switching elements to be driven by PWM signals; a reception unit to receive data indicating energization of the motor and the duty ratio of the PWM signal for each energization control unit from a computation apparatus by serial communication; a first signal generation unit to generate a motor control signal for controlling energization of the motor and the duty ratio based on the data for each energization control unit; and a second signal generation unit to generate the PWM signal having the duty ratio set according to the corresponding motor control signal for each energization control unit.
A motor drive circuit that comprises a plurality of energization control units each configured to switch a direction of energization of a motor by using a switching element configured to be driven by a PWM signal, comprising:
A method of controlling a motor drive circuit comprising a plurality of energization control units each configured to switch a direction of energization of a motor by using a switching element configured to be driven by a PWM signal, the method comprising:
A non-transitory computer readable storage medium storing a program which causes a computer to execute a method of controlling a motor drive circuit comprising a plurality of energization control units each configured to switch a direction of energization of a motor by using a switching element configured to be driven by a PWM signal, the method comprising:
Dependencies are inferred from the claim text.