公开(公告)号：US10268790B2

公开(公告)日：2019-04-23

申请号：US15560161

申请日：2017-02-24

Applicant: Southeast University

Inventor： Weiwei Shan ,  Wentao Dai ,  Jun Yang ,  Longxing Shi

IPC: G06F17/50 ,  H03K5/19 ,  H03K5/1534

Abstract: An online monitoring unit and a control circuit for ultra-wide voltage range applications are disclosed. Compared with a conventional online monitoring unit, present invention eliminates a need to reserve delay units, replaces flip-flops in the conventional online monitoring unit with a latch, and uses a transition detector with fewer transistors than that of a shadow latch in the conventional online monitoring unit, thereby reducing an area and a power consumption of the online monitoring unit significantly and improving an energy efficiency of online monitoring techniques. In addition, in the ultra-wide voltage range applications, a time borrowing property of the latch adopted by the present invention can be utilized to prevent a timing error caused by process-voltage-temperature (PVT) variations, thus enabling a minimization of a timing margin and ensuring a higher power efficiency. The present invention also discloses a control circuit for use with the online monitoring unit.