开关电源工作频率高于30 kHz时的绝缘要求  

Insulation Requirements of Electronic Products with Frequency Higher than 30 kHz

作　　者：许艳伟 刘立 XU Yanwei;LIU Li(Beijing TIRT Technology Service Co.,Ltd.,Beijing 100015,China)

机构地区：[1]北京泰瑞特检测技术服务有限责任公司,北京100015

出　　处：《电视技术》2022年第10期187-190,共4页Video Engineering

摘　　要：主要介绍当音视频、信息技术和通信技术类电子产品中使用的开关电源的工作频率高于30 kHz时的绝缘要求以及是否满足标准要求的检测或判定方法。通过分析开关电源的基本工作原理,进行摸底测试,从而确定开关电源中高频电路所在的位置,并结合开关电源所用变压器的绝缘结构和材料特点进行具体的分析。This paper mainly introduces the insulation requirements of switching power supply used in audio and video,information technology and communication technology electronic products when its operating frequency is higher than 30 kHz,and the detection or determination methods for whether it meets the standard requirements.By analyzing the basic working principle of switching power supply,the position of high-frequency circuit in switching power supply is determined through bottom testing,and the insulation structure and material characteristics of transformer used in switching power supply are specifically analyzed.

关 键 词：开关电源 工作频率 绝缘要求 开关电源变压器 

分 类 号：TN86[电子电信—信息与通信工程]