带功率因数校正的led驱动芯片的设计应用

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1、目录目录............................................................3第一章引言.........................................................11.1LED照明的基本需求...........................................11.2功率因数校正的发展..........................................11.3论文组织结构...............

2、.................................2第二章芯片的整体架构...............................................32.1功率因数校正的基本原理......................................32.1.1功率因数校正...........................................32.1.2功率因数校正的类型.....................................62.1.3主动功率因数校

3、正的工作模式.............................62.2拓扑结构...................................................102.3工作模式...................................................112.4芯片顶层设计...............................................132.4.1电源管理.........................................

4、....132.4.2导通时间控制.........................................142.4.3过零探测模块.........................................152.4.4电流检测模块.........................................152.4.5误差放大器...........................................16第三章芯片的设计实现...............................

5、...............173.1电源模块...................................................173.1.1欠压锁定..............................................173.1.2电压源和参考电压......................................173.1.2.1带隙基准......................................183.1.2.2启动电路...............

6、.......................203.1.2.3偏置电路......................................203.1.2.4电压源整体电路................................213.1.3电流源................................................223.2过零检测电路...............................................233.2.1钳位电路...............

7、...............................233.2.2过零检测整体电路.....................................253.3过流检测消隐电路...........................................253.4误差放大器.................................................273.4.1误差放大器核心电路...................................273.4.2输出钳位电路..

8、.......................................293.5过温保护...................................................293.6芯片的整体电路和版图......................................