本书结合国内外开关电源的应用和发展现状，以开关电源可靠性设计为主线进行编写，突出实用性，全面系统地阐述了开关电源可靠性的新设计技术。全书共分为 6章，在简要介绍开关电源可靠性的定义、指标及设计原则的基础上，系统地讲述了开关电源**设计、开关电源热设计、开关电源电路的电磁兼容性及设计、开关电源 PCB电磁兼容设计、开关电源可靠性测试等内容。本书题材新颖实用，内容丰富，深入浅出，具有很高的实用价值。 本书可供电信、信息、航天、军事及家电等领域从事开关电源可靠性设计的工程技术人员阅读，也可供高等院校、职业技术学院相关专业的师生阅读参考。

前言 第1章 概述········································································ 1 1.1 开关电源可靠性 ·········································································· 1 1.1.1 可靠性的定义及指标···························································· 1 1.1.2 影响开关电源可靠性的因素 ··················································· 8 1.2 开关电源可靠性设计 ·································································· 12 1.2.1 开关电源可靠性设计原则及方法 ··········································· 12 1.2.2 元器件降额使用································································ 17 第2章 开关电源**设计···················································· 25 2.1 开关电源**距离及**器件选择················································· 25 2.1.1 **距离与绝缘分类·························································· 25 2.1.2 开关电源**器件选择······················································· 27 2.1.3 安规电容选择··································································· 36 2.2 开关电源输入保护电路及滤波器···················································· 40 2.2.1 开关电源输入保护电路······················································· 40 2.2.2 开关电源滤波器································································ 48 2.3 开关电源吸收电路 ····································································· 52 2.3.1 吸收回路的作用及类型······················································· 52 2.3.2 开关电源吸收电路设计······················································· 57 第3章 开关电源热设计······················································ 65 3.1 开关电源热设计目的及原则 ························································· 65 3.1.1 开关电源环境温度及热设计目的 ··········································· 65 3.1.2 开关电源热设计的原则······················································· 68 3.2 开关电源转换效率及热设计层次···················································· 70 3.2.1 开关电源转换效率及温度···················································· 70 3.2.2 热设计层次及热设计功耗（TDP）·········································· 73 3.3 开关电源表面贴装元器件热设计及金属芯 PCB ································· 76 3.3.1 开关电源表面贴装元器件热设计 ··········································· 76 3.3.2 金属芯 PCB ····································································· 80 3.4 开关电源 PCB热设计 ································································· 84 3.4.1 开关电源 PCB热量的来源及 PCB热设计的要求 ······················· 84 3.4.2 开关电源 PCB热设计对元器件布局、布线的要求 ····················· 86 3.4.3 开关电源 PCB热设计的具体措施·········································· 90 3.5 开关电源热设计规则及散热器设计要点··········································· 92 3.5.1 开关电源热设计规则及方法 ················································· 92 3.5.2 开关电源散热器设计要点···················································· 95 第4章 开关电源电路的电磁兼容性及设计 ····························· 105 4.1 开关电源的电磁干扰及传播方式··················································· 105 4.1.1 开关电源中的电磁干扰源··················································· 105 4.1.2 开关电源中电磁干扰分类及耦合通道 ···································· 113 4.2 开关电源电磁干扰**技术 ························································ 120 4.2.1 减小干扰源能量及**网侧高次谐波电流 ······························ 120 4.2.2 **共模干扰及尖峰干扰技术 ············································· 123 4.2.3 开关电源接地技术···························································· 129 4.2.4 开关电源调制频率控制及无源补偿技术 ································· 132 4.3 开关电源电路的电磁兼容及输入 /输出布线设计······························· 136 4.3.1 开关电源电路的电磁兼容设计 ············································· 136 4.3.2 开关电源输入 /输出布线设计·············································· 140 第5章 开关电源 PCB电磁兼容设计 ···································· 148 5.1 开关电源 PCB电磁干扰**措施及地线设计··································· 148 5.1.1 开关电源 PCB电磁干扰及**措施······································ 148 5.1.2 开关电源 PCB地线设计····················································· 150 5.2 开关电源 PCB布局布线设计 ······················································· 155 5.2.1 开关电源 PCB布局设计····················································· 155 5.2.2 开关电源 PCB布线设计····················································· 159 5.3 开关电源 PCB电磁兼容设计要点 ················································· 167 5.3.1 PCB中带状线、电线、电缆间的串音和电磁耦合 ····················· 167 5.3.2 开关电源 PCB电流回路及电压节点设计要点 ·························· 172 5.3.3 开关电源 PCB滤波电路布局及退耦电容配置要点 ···················· 175 第6章 开关电源可靠性测试 ··············································· 180 6.1 开关电源电磁兼容性测试 ··························································· 180 6.1.1 电磁兼容测试技术···························································· 180 6.1.2 开关电源电磁兼容测试电路及波形 ······································· 187 6.2 PCB质量评价及可靠性试验 ························································ 195 6.2.1 PCB质量评价 ································································· 195 6.2.2 PCB可靠性试验 ······························································ 198 6.3 开关电源技术安规及可靠性测试方法············································· 203 6.3.1 开关电源安规测试方法······················································ 203 6.3.2 开关电源可靠性测试方法··················································· 210 参考文献······················································································· 226