Dual Servo Motor Drives Control Using Single MCU

Lai, Yen-Shin; Hsu, Y.-Y.

doi:10.1109/ias.2018.8544561

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2021

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“…In this case, synchronous and simultaneous PWM to control the DC servo motors is required for the dance robot to move smoothly and beautifully. Microcontroller is usually used to control the DC servo motors [10]. In the case of microcontroller STM32F407VG, the PWM signal is generated with timer of general purpose input output (GPIO) which has only 4 channels [11].…”

Section: Introductionmentioning

confidence: 99%

FPGA based synchronous multi-channel PWM generator for humanoid robot

Muttaqin

Finnadi

Abidin

et al. 2021

IJECE

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In this paper, synchronous multi-channel pulse width modulation (PWM) generator for driving servo motors of humanoid robot was proposed. In an application, the humanoid robot requires smooth and beautiful movement, therefore the PWM signal for each servo motor must be synchronized. Since microcontroller (slave) has no enough channels to generate synchronous PWMs for 32 servo motors, field programmable gate array (FPGA) was used as slave for the humanoid robot. The FPGA was controlled by microcontroller (master) using serial communication. Simulation results show the system can perform serial communication, synchronize, and convert data well. The system can also generate PWM simultaneously with accurate duty cycle and fix period of 20ms.

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Section: Introductionmentioning

confidence: 99%