|本期目录/Table of Contents|

[1]韩 芬.基于UC3842双闭环反馈实现开关电源[J].工业仪表与自动化装置,2023,(06):98-101.[doi:DOI:10.19950/j.cnki.cn61-1121/th.2023.06.017]
 HAN Fen.Switching power supply based on UC3842 double closed-loop feedback[J].Industrial Instrumentation & Automation,2023,(06):98-101.[doi:DOI:10.19950/j.cnki.cn61-1121/th.2023.06.017]
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基于UC3842双闭环反馈实现开关电源

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2023年06期
页码:
98-101
栏目:
出版日期:
2023-12-15

文章信息/Info

Title:
Switching power supply based on UC3842 double closed-loop feedback
文章编号:
1000-0682(2023)06-0098-00
作者:
韩 芬
西安交通大学城市学院 电气与信息工程系,陕西 西安 710018
Author(s):
HAN Fen
Department of Electrical and Information Engineering,Xi’an Jiaotong University City College,Shaanxi Xi’an 710018,China
关键词:
开关电源UC3842双闭环反馈
Keywords:
switching power supply UC3842 double closed-loop feedback
分类号:
TN386.1
DOI:
DOI:10.19950/j.cnki.cn61-1121/th.2023.06.017
文献标志码:
A
摘要:
为了提高开关电源的稳定性,采用控制芯片UC3842电流和电压的双闭环反馈,控制驱动的PWM波形每个周期占空比的大小,实现开关电源的稳定输出。该文对设计的主电路和控制驱动电路利用仿真软件Multisim搭建仿真模型,仿真结果表明设计的合理性。根据仿真模型完成硬件电路并调试,实验结果表明,该文设计的电路合理,利用UC3842设计的电流和电压的双闭环反馈,实现调节驱动波形每个周期占空比的大小,最终达到稳定开关电源输出电压的目的。
Abstract:
In order to improve the stability of the switching power supply, this paper adopts the double closed-loop feedback of the current and voltage of the control chip UC3842 to control the duty cycle of the PWM waveform in each cycle to achieve the stable output of the switching power supply. In this paper, the main circuit and control driver circuit are designed by using the simulation software Multisim to build a simulation model, and the simulation results show that the design is reasonable. According to the simulation model, the hardware circuit is completed and debug. The experimental results show that the circuit designed in this paper is reasonable. By using the double closed-loop feedback of current and voltage designed by UC3842, the duty cycle of the driving waveform can be adjusted to stabilize the output voltage of the switching power supply.

参考文献/References:

[1]朱彩莲,熊丽萍,魏海红.基于UC3842反激式AC-DC开关电源设计[J].电子设计工程,2017,25(24): 148-152.

[2]韩芬,张艳肖,石浩.SiC MOSFET在Buck变换器中的应用[J].工业仪表与自动化装置,2022(1):3-7.
[3]韩芬,张艳肖,石浩.SiC MOSFET在Boost电路中的应用[J].工业仪表与自动化装置,2021(6):65-69.
[4]王侠,王进军.基于UC3842的三路输出小功率开关电源设计[J].电子器件,2015,38(4):785-789.
[5]王志峰,廖晓文,王韶军,等.基于UC3842应用电路设计[J].电子设计工程,2014,22(19):126-129.
[6]戴路,张闽,刘欢,等.基于UC3842的反激式开关电源的设计[J].农业装备与车辆工程,2023,61(3):133-136.

相似文献/References:

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 ZHOU Zhiwen,WANG Xiaoyan.Magnetron sputtering DC power supply design based on DSP[J].Industrial Instrumentation & Automation,2017,(06):47.
[2]韩 芬.SiC MOS在有源功率因数校正电路中的应用[J].工业仪表与自动化装置,2023,(05):112.[doi:10.19950/j.cnki.cn61-1121/th.2023.05.023]
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备注/Memo

备注/Memo:
收稿日期:2023-07-06?div>
第一作者:
韩芬(1982—),女,陕西咸阳人,硕士研究生,中级工程师,研究方向为电力电子技术及其应用。
更新日期/Last Update: 1900-01-01