开关电源可靠性设计与测试：安全·热管理·电磁兼容

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 开关电源安全设计···················································· 25
2.1　开关电源安全距离及安全器件选择················································· 25
2.1.1　安全距离与绝缘分类·························································· 25
2.1.2　开关电源安全器件选择······················································· 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　开关电源电磁干扰抑制技术 ························································ 120
4.2.1　减小干扰源能量及抑制网侧高次谐波电流 ······························ 120
4.2.2　抑制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电磁干扰抑制措施及地线设计··································· 148
5.1.1　开关电源 PCB电磁干扰及抑制措施······································ 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