Power-Fail Detection and Data Storage Design for Control System
The purpose of power-fail protection design is to ensure the certainty and integrity of system information. The key point of design includes: the signals of power-fail detection and data treatm- ent; real-time clock circuit design which is synchronous with the system or as a mark of time; using non-volatile memory (such as FRAM) or using battery backup to maintain trade volatile memory (eg RAM) power to ensure the information integrity and non-volatile storage when the power is removed.
L. M. Wang and B. Mo, "Power-Fail Detection and Data Storage Design for Control System", Advanced Materials Research, Vols. 383-390, pp. 4121-4124, 2012