Design of CNC constant current source based on incremental PID control

Chengquan Liang; Deshen Lv; Xinqiang Yang

doi:10.1117/12.2685734

15 August 2023 Design of CNC constant current source based on incremental PID control

Chengquan Liang, Deshen Lv, Xinqiang Yang

Proceedings Volume 12719, Second International Conference on Electronic Information Technology (EIT 2023); 127193X (2023) https://doi.org/10.1117/12.2685734
Event: Second International Conference on Electronic Information Technology (EIT 2023), 2023, Wuhan, China

Abstract

The traditional constant current source is subject to problems such as low output current accuracy, instability and large size, which can no longer accommodate the needs of the increasingly demanding industrial production. A stable constant current source can enable instruments and equipment to work efficiently, so it bears great significance to study a constant current source with high output accuracy and stability. The system is designed based on incremental (proportion integration differentiation) PID control of the computer numerical control (CNC) constant current source. The microcontroller samples the current output from the constant current source module, compares it with the set current, then calculates and adjusts the pulse width of the pulse width modulation (PMW) by incremental PID algorithm, and thus obtains a constant current. Experiments verified that the design achieves constant current in the range of 200 mA-2000 mA, with a step of 10 mA and high precision.

Citation Download Citation

Chengquan Liang, Deshen Lv, and Xinqiang Yang "Design of CNC constant current source based on incremental PID control", Proc. SPIE 12719, Second International Conference on Electronic Information Technology (EIT 2023), 127193X (15 August 2023); https://doi.org/10.1117/12.2685734

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available