Bus current analysis of high power cryocooler's controller

Zhanlei Jin; Qiyang Sun; Liqun Dai; Jie Dong

doi:10.1117/12.2269254

8 March 2017 Bus current analysis of high power cryocooler's controller

Zhanlei Jin, Qiyang Sun, Liqun Dai, Jie Dong

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 102552G (2017) https://doi.org/10.1117/12.2269254
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

Current analysis was an important research content for reducing power of cryocooler’s controller. Simulation was done among load current, H bridge current and power current refer to 42V bus power voltage. Then relationship among I_L1, I_C1, ρ and I_M1 was established. Simulation results indicate that I_L1-max, I_L1-ave, I_L1-rms, I_C1-minand _IC1-ave were linearly increasing to ρ and I_M1, especially I_L1-rms ≈ 0.612ρ I_M1-max. I_C1-rms increase firstly then decrease with the increasing of ρ. I_C1-rmsreaches maximum when ρ=0.8, then I_CL-rms =(12.32/R_M1 + 0.98) exp ^{-((ρ-0.78)/0.57)²}. The results were useful for miniaturizing cryocooler’s controller.

Citation Download Citation

Zhanlei Jin, Qiyang Sun, Liqun Dai, and Jie Dong "Bus current analysis of high power cryocooler's controller", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102552G (8 March 2017); https://doi.org/10.1117/12.2269254

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