高压电源管理中内部稳压器的设计

设计了一用于高压电源管理芯片中的内部稳压器电路,为系统中低压模块提供稳定的电源电压输入.电路分为基准和线性稳压器两个部分.整个电路结构为:峰值电流源为Brokaw基准供电,获得的基准电压输入后端放大器的正向端中,运用线性稳压器结构进行降压,为后级各模块提供三组不同的电压,又根据各个电源使用场合的不同,对数字电源加入关断机制,并且加强了功率电源的负载调整能力,有效地防止了后续模块的不正常工作.系统测试表明,电路能够产生三组需要的电压,并在容差范围内能够使系统正常工作.

Design of Internal Regulator for High Voltage Power Management

An internal regulator for high voltage power management was designed,which could provide stable input voltage for low voltage block.The circuit contains voltage reference and line voltage regulator.The peak current source supplies power to Brokaw reference,and the reference voltage is input into the positive input of the amplifier.A linear regulator was used to provide three voltages for different blocks.Depending on different applications of the three voltages,a shutdown circuit was designed for digital po...