摘要
设计了一种新的用于离线式集成开关电源启动电路的自偏置高压器件结构.对一个RESURF高压(功率)器件的此种自偏置方法进行了原理分析和仿真模拟.采用该结构集成开关电源的启动电路可以节省芯片面积,降低电路功耗,易于控制且可提供较大的芯片内部电源电压.
A novel self-bias high-voltage device structure for the start-up circuit of an off-line switching model power supply IC is described. The structure and properties of the device, made by RESURF technology, are analyzed and simulated. Using this novel start-up circuit structure for the off-line switching model power supply IC can save the cell area,reduce the power consumption of the circuit, and easily control and supply the larger output voltage.
基金
国家自然科学基金资助项目(批准号:60476036)~~
关键词
开关电源
启动电路
自偏置
高压器件
switching model power supply
start-up circuit
self-bias
high-voltage device
