earticle

영어

The ideal actuators for modern engineering applications should be small and light. Conventional actuators like electric motor, hydraulic and pneumatic actuators have been used for vehicle, robots, aerospace and other engineering applications. However these conventional actuators consist of complex sub parts, servo valves and gears that make the actuator heavy and bulky. So the conventional actuators have limitations to be made in small size for embedded engineering systems. There have been many studies to develop actuators with small size and fast response using the smart materials. To control the smart actuator, we need also smaller and lighter controller system. Conventional micro-controllers are not equipped with analog part and need digital to analog converters in addition to the embedded analog to digital converters, which makes the system bulky compared with the small size of the smart devices. To overcome these weaknesses, we are developing one-chip micro-controller that can handle analog and digital signals simultaneously using mixed signal FPGA technology. In this paper we introduce the design of single chip controller using mixed signal FPGA, SmartFusion device. To demonstrate its performance, we implemented a PID controller in the FPGA fabric and showed the effective regulation of a simple 1st order plant.