Title :
Design of Program-Controlled Current Source Based on DDS Technology
Author :
Cai, Zhiyuan ; Wei, Wei ; Ma, Shaohua
Author_Institution :
Educ. Minist. & Province Key Lab. of Special Motor & High Voltage Apparatus, Shenyang Univ. of Technol., Shenyang, China
Abstract :
In this paper, a program-controlled current source system which is based on direct digital frequency synthesis technology has been proposed. The system adopts PIC16F877 microcontroller as the control center, chooses the AD9850 chip to achieve the program. Through closed-loop design, software use discrete incremental digital PID algorithm to realize precise control of output current system of small volume, the signal frequency stability, high precision and easy operation, and it has a very wide prospect in engineering application.
Keywords :
closed loop systems; control system synthesis; direct digital control; direct digital synthesis; electric current control; microcontrollers; programmable controllers; three-term control; AD9850 chip; DDS technology; PIC16F877 microcontroller; closed-loop design; control center; direct digital frequency synthesis technology; discrete incremental digital PED algorithm; output current system; precise control; program-controlled current source design; signal frequency stability; Algorithm design and analysis; Frequency control; Frequency synthesizers; Low pass filters; Microcontrollers; Registers; Time frequency analysis;
Conference_Titel :
E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on
Conference_Location :
Henan
Print_ISBN :
978-1-4244-7159-1
DOI :
10.1109/ICEEE.2010.5661275
