一种智能多通路自适应调控寄生供电系统

An Intelligent Multi-channel Adaptive Control Parasitic Power Supply System

摘要:

在全面梳理现有寄生供电系统的基础上,提出一种无需特殊工艺支持、可兼顾高速充电和低压差供电的智能多通路自适应调控寄生供电系统。该方案利用充放电控制状态机,协同双器件并行控制结构,对三条供电线路进行自适应调控切换,在提升充电速度和效率的同时,进一步模糊功耗信息。该方案可用于1-Wire芯片、高要求的光电等信息的采集以及实时监控等功能芯片的供电,并提升芯片的抗侧信道攻击能力。基于华虹宏利0.35μm体硅CMOS工艺完成了该方案的仿真,结果表明,该系统能够将芯片内外供电压差降低到0.1V以下,充电速度提升32%。

Abstract:

Based on a comprehensive review of the existing parasitic power supply system, an intelligent multi-channel adaptive control parasitic power supply system without special process support is proposed, which takes into account both high-speed charging and low voltage differential power supply. In this scheme, the state machine of charge and discharge control and the parallel control structure of two devices are used to adaptively control and switch the three power supply lines, so as to improve the charging speed and efficiency, and further blur the power consumption information. The scheme can be used for the power supply of 1-Wire chip, high demand photoelectric information collection and real-time monitoring function chip, and improve the chip's ability to resist side channel attack. Based on the 0.35μm bulk silicon CMOS process of HHGrace, the simulation results show that the system can reduce the voltage difference between inside and outside the chip to less than 0.1V, and increase the charging speed by 32%.