NTC阻值和放置位置在开关电源输入回路中的作用

doi:10.19784/j.cnki.issn1672-0172.2019.05.017

Abstract

Abstract: In the current switch power supply design of household appliances, NTC resistance has become a very important component in the power supply input circuit design to suppress the surge current. It is very important to choose a suitable NTC resistor for switching power supply with power over 10W. For switching power supplies over 10W, it is not suitable to print the transient surge current with a resistor with a fixed resistance value due to the heating and power consumption problems. Therefore, many companies choose NTC resistor to print the transient surge current.In order to effectively solve the damage of surge current and surge voltage at the moment of power on to the back stage of power supply, this paper discusses the function of NTC resistance value and position in the input loop.

Key words: Home appliance, NTC resistance, Surge current, Surge voltage

Zhou Jie, Gao Limin, ZHU Xiaoli. The function of NTC resistance value and position in switching power supply input loop[J]. Journal of Appliance Science & Technology, 2019, 0(5): 104-108.

[1]	Chalearn Bouted, Chavalit Ratanatamskul, Alberto Salvo, Hashimoto K, Kawakami Y, Zhao Bin, Yi Ren, Gao Diankui, Shi Chengjiang, Xu Lizhi, Zhang Yuanyuan, Bin Hu R.Z. Wang, Biao Xiao, Lin He, Wei Zhang, Shihang Zhang, Stamminger R, Tecchio P, Ardente F, Mathieux F, Niestrath P, Shijiao Yan, Yong Gan, Xingyue Song, Yunqiang Chen, Na Liao, Song Chen, Chuanzhu Lv. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 8 -9 .
[2]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 10 -15 .
[3]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 16 -19 .
[4]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 20 -23 .
[5]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 24 -25 .
[6]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 26 -27 .
[7]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 28 -29 .
[8]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 30 -31 .
[9]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 32 -33 .
[10]	. [J]. Journal of Appliance Science & Technology, 2019, 0(1): 34 -37 .

The function of NTC resistance value and position in switching power supply input loop

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