A design scheme of prosthetic hand electrical control system based on FPGA is proposed in order to meet control requirements of biomechatronics prosthetic hand. The modular design is used in the system

main control chip module which is composed of FPGA is used to make the system have the ability of functions expansion and redevelopment; finger movement control module made up of DSP

EMG signal collection module

electrophotoluminescence module

USB interface module and battery management module can work independently and connect with main control chip module

through universal interface. The system is highly-integrated and can be fully placed inside prosthetic hand. The multi-finger grasping experiments on HIT prosthetic hand V are carried out using the control system

and the experimental results verify its working effect is good.