摘要：本应用笔记介绍了三种方法来跟踪电源轨之间的电压。功能的电路，也最简单的方法，采用的MAX6819电源定序执行开环电压跟踪。Maxim > App Notes > Circuit Protection Keywords: power-supply sequencers, voltage tracking Aug 27, 2009 APPLICATION NOTE 4413 Sequencing Circuit Provides Pseudo Voltage Tracker Abstract: This application note presents three approaches to track voltages between the supply rails. The featured circuit, also the simplest approach, features the MAX6819 power-supply sequencer which performs open-loop voltage tracking. This design idea appeared in the June 1, 2006 issue of Portable Design magazine. Modern microcontrollers, DSPs, and ASICs require multiple supply voltages for proper operation. With higher speed and better processing capabilities, the voltages and fabrication geometries of these devices have been scaled down to minimize power d……