TY - GEN
T1 - High-Precision Current Source with Lumped Current Outer Loop-Distributed Current Inner Loop for the Application of Sintered Powder Materials
AU - Zhao, Songyang
AU - Jin, Shanshan
AU - Fang, Zhi
N1 - Publisher Copyright:
© Beijing Paike Culture Commu. Co., Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - Pulse electric current sintering is a new powder material synthesis technology. Due to the limited output accuracy of the current source, it is difficult to precisely control the amount of charge that passes through the sample and the mold, to precisely adjust the temperature rise rate of the target sample. Based on the topology of the linear current source, a high-precision current source with lumped current outer loop and the distributed current inner loop is designed in this paper, which consists of two parts: the distributed current inner loop power stage unit and the current outer loop feedback calibration unit. The working principle and characteristic parameters of the double closed loop current source are analyzed through the circuit structure. The influence of the power transistor on the output current accuracy is analyzed through verification experiments, and it is proved that the current source can output extremely high current accuracy, achieve a static error of mA level, and realize rapid temperature rise during sintering.
AB - Pulse electric current sintering is a new powder material synthesis technology. Due to the limited output accuracy of the current source, it is difficult to precisely control the amount of charge that passes through the sample and the mold, to precisely adjust the temperature rise rate of the target sample. Based on the topology of the linear current source, a high-precision current source with lumped current outer loop and the distributed current inner loop is designed in this paper, which consists of two parts: the distributed current inner loop power stage unit and the current outer loop feedback calibration unit. The working principle and characteristic parameters of the double closed loop current source are analyzed through the circuit structure. The influence of the power transistor on the output current accuracy is analyzed through verification experiments, and it is proved that the current source can output extremely high current accuracy, achieve a static error of mA level, and realize rapid temperature rise during sintering.
KW - Linear current source
KW - Pulse electric current sintering
KW - double closed-loop structure
KW - high precision
UR - http://www.scopus.com/inward/record.url?scp=85188809251&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-0877-2_34
DO - 10.1007/978-981-97-0877-2_34
M3 - 会议稿件
AN - SCOPUS:85188809251
SN - 9789819708765
T3 - Lecture Notes in Electrical Engineering
SP - 321
EP - 329
BT - The Proceedings of 2023 International Conference on Wireless Power Transfer, ICWPT 2023 - Volume II
A2 - Cai, Chunwei
A2 - Chai, Wenping
A2 - Wu, Shuai
A2 - Qu, Xiaohui
A2 - Mai, Ruikun
A2 - Zhang, Pengcheng
PB - Springer Science and Business Media Deutschland GmbH
T2 - International Conference on Wireless Power Transfer, ICWPT 2023
Y2 - 13 October 2023 through 15 October 2023
ER -