Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (4): 68 doi: 10.1007/s41365-019-0585-3

• ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

New thermal optimization scheme of power module in solid-state amplifier

Lie-Peng Sun1 • Zhen-Yu Yuan1 • Cheng Zhang1 • Xian-Bo Xu3 • Jun-Gang Miao2 • Jian-Hua Zhang1 • Long-Bo Shi3 • Yuan He3   

  1. 1 Beijing BBEF Science and Technology Co., Ltd., Beijing 101312, China
    2 Beihang University, Beijing 100082, China
    3 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2018-05-22 Revised:2018-09-17 Accepted:2018-10-19
  • Contact: Lie-Peng Sun E-mail:sunnyslp@163.com
  • Supported by:
    This work was supported by the ‘‘strategic priority research program’’ of the Chinese Academy of Sciences (No. XDA030205).
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Lie-Peng Sun, Zhen-Yu Yuan, Cheng Zhang, Xian-Bo Xu, Jun-Gang Miao, Jian-Hua Zhang, Long-Bo Shi, Yuan He. New thermal optimization scheme of power module in solid-state amplifier.Nuclear Science and Techniques, 2019, 30(4): 68     doi: 10.1007/s41365-019-0585-3

Abstract: The new 1 kW power module for ADS project needs the optimization of cooling design including water flow and tunnel layout, and the water flow of three tons per hour was chosen to be a goal for a 20 kW power source. According to analysis from the insertion and integrated loss, about 24 modules were integrated into the rated power. Thus, every module has a cooling flow of 2.1 L/min for RF heat load and power supply loss, which is very hard to achieve if no special consideration and techniques. A new thermal simulation method was introduced for thermal analysis of cooling plate through CST multi-physics suite, especially for temperature of power LDMOS transistor. Some specific measures carried out for the higher heat transfer were also presented in this paper.

Key words: RF system, Solid-state amplifier, Power module, Heat transfer coefficient