- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | HE Mingzhi, LIN Runze, ZHOU Shuhan, FENG Pei, LI Huan, WANG Dengfeng. Current-Mode Variable Frequency Control Technique for Single-Inductor Dual-Output Switching Converter with Independent Charge and Discharge Sequence[J]. Journal of Southwest Jiaotong University, 2024, 59(5): 980-989. doi: 10.3969/j.issn.0258-2724.20220535
|
Single-inductor dual-output (SIDO) switching converters with shared charge and discharge sequence have problems of the large inductor current ripple and cross-regulation between output branches, and the control circuit fails to work normally under the wide range of changes in circuit parameters. To solve these problems, a current-mode variable frequency control (C-VF) technique with an independent charge and discharge sequence was proposed. First, the working principle of the converter in continuous conduction mode (CCM) was specifically described, and the open-loop transfer function of the main circuit was derived. Furthermore, a closed-loop small signal model was constructed, and the closed-loop cross-regulation impedance transfer functions were derived. The cross-regulation characteristics of the converter with different output voltages and load currents were analyzed in detail. Finally, simulation and experimental verification were carried out. The results show that compared with the shared charge and discharge sequence, the C-VF CCM SIDO buck convert with independent charge and discharge sequence reduces the cross-regulation and improves the transient load response performance. When the load voltages of the two branches are different, decreasing the load of one branch can reduce the cross-regulation of this branch to another one. When the output voltages of the two branches are the same, but the loads are different, the branch with heavy loads has small cross-regulation on the branch with light load.
| [1] |
XU J, WENG Z Y, JIANG H J, et al. A high efficiency single-inductor dual-output buck converter with adaptive freewheel current and hybrid mode control[C]//2016 IEEE International Symposium on Circuits and Systems (ISCAS). Montreal: IEEE, 2016: 1614-1617.
|
| [2] |
DONG Z, LI X L, TSE C K, et al. Derivation of single-input dual-output converters with simple control and no cross regulation[J]. IEEE Transactions on Power Electronics, 2020, 35(11): 11930-11941. doi: 10.1109/TPEL.2020.2983618
|
| [3] |
ZHENG Y Q, HO M, GUO J P, et al. A single-inductor multiple-output auto-buck-boost DC–DC converter with autophase allocation[J]. IEEE Transactions on Power Electronics, 2016, 31(3): 2296-2313. doi: 10.1109/TPEL.2015.2432040
|
| [4] |
杨利亚. 应用于航天器电源系统的多路输出变换器研究[D]. 哈尔滨: 哈尔滨工业大学, 2020.
|
| [5] |
王瑶,陈玲,杨德鑫,等. I2控制单电感双输出buck LED驱动电源交叉影响分析[J]. 西南交通大学学报,2023,58(6): 1248-1256.
WANG Yao, CHEN Ling, YANG Dexin, et al. Cross regulation analysis of I2-controlled single-inductor dual-output buck LED driver[J]. Journal of Southwest Jiaotong University, 2023, 58(6): 1248-1256.
|
| [6] |
ZHENG Y Q, GUO J P, LEUNG K N. A single-inductor multiple-output buck/boost DC–DC converter with duty-cycle and control-current predictor[J]. IEEE Transactions on Power Electronics, 2020, 35(11): 12022-12039. doi: 10.1109/TPEL.2020.2988940
|
| [7] |
WANG Y, XU L M, ZHANG L Y, et al. Modeling and stablility analysis of peak-current-mode-controlled SIDO CCM buck converter[C]//2020 15th IEEE Conference on Industrial Electronics and Applications (ICIEA). Kristiansand: IEEE, 2020: 915-920.
|
| [8] |
JIN W J, LEE A T L, TAN S C, et al. Single-inductor multiple-output inverter with precise and independent output voltage regulation[J]. IEEE Transactions on Power Electronics, 2020, 35(10): 11222-11234. doi: 10.1109/TPEL.2020.2979893
|
| [9] |
DONG Z, LI Z, LI X L, et al. Single-inductor multiple-input multiple-output converter with common ground, high scalability, and no cross-regulation[J]. IEEE Transactions on Power Electronics, 2021, 36(6): 6750-6760. doi: 10.1109/TPEL.2020.3036704
|
| [10] |
KWON D, RINCON-MORA G A. Single-inductor–multiple-output switching DC–DC converters[J]. IEEE Transactions on Circuits and Systems Ⅱ: Express Briefs, 2009, 56(8): 614-618.
|
| [11] |
WANG Y, XU J P, YIN G. Cross-regulation suppression and stability analysis of capacitor current ripple controlled SIDO CCM buck converter[J]. IEEE Transactions on Industrial Electronics, 2019, 66(3): 1770-1780. doi: 10.1109/TIE.2018.2838103
|
| [12] |
WANG B F, KANAMARLAPUDI V R K, XIAN L, et al. Model predictive voltage control for single-inductor multiple-output DC–DC converter with reduced cross regulation[J]. IEEE Transactions on Industrial Electronics, 2016, 63(7): 4187-4197. doi: 10.1109/TIE.2016.2532846
|
| [13] |
周国华,冉祥,周述晗,等. 恒定谷值电流型变频控制CCM单电感双输出Boost变换器建模与分析[J]. 中国电机工程学报,2018,38(23): 7015-7025,7135. doi: 10.13334/j.0258-8013.pcsee.172730
ZHOU Guohua, RAN Xiang, ZHOU Shuhan, et al. Modeling and analysis of CCM single-inductor dual-output boost converter with fixed valley current mode variable frequency control[J]. Proceedings of the CSEE, 2018, 38(23): 7015-7025,7135. doi: 10.13334/j.0258-8013.pcsee.172730
|
| [14] |
冉祥,周国华,周述晗. 共模-差模电压型控制连续导电模式单电感双输出Boost变换器交叉影响特性分析[J]. 电工技术学报,2019,34(12): 2519-2528. doi: 10.19595/j.cnki.1000-6753.tces.180544
RAN Xiang, ZHOU Guohua, ZHOU Shuhan. Cross-regulation characteristic of continuous conduction mode single-inductor dual-output boost converter with common-mode voltage and differential-mode voltage control[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2519-2528. doi: 10.19595/j.cnki.1000-6753.tces.180544
|
| [15] |
王瑶. 电容电流-电容电压纹波控制单电感双输出CCM Buck变换器[J]. 中国电机工程学报,2020,40(10): 3280-3288.
WANG Yao. Capacitor current and capacitor voltage ripple controlled single-inductor dual-output CCM buck converter[J]. Proceedings of the CSEE, 2020, 40(10): 3280-3288.
|
| [16] |
WANG B F, XIAN L, KANAMARLAPUDI V R K, et al. A digital method of power-sharing and cross-regulation suppression for single-inductor multiple-input multiple-output DC−DC converter[J]. IEEE Transactions on Industrial Electronics, 2017, 64(4): 2836-2847. doi: 10.1109/TIE.2016.2631438
|
Figures(12) / Tables(3)
DownLoad:
