公开(公告)号：US20180253521A1

公开(公告)日：2018-09-06

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

CPC classification number: G06F17/5045 ,  G06F17/5031 ,  G06F2217/84 ,  H03K5/1534 ,  H03K5/19

Abstract: An online monitoring unit and a control circuit for ultra-wide voltage range applications are disclosed. Compared with a conventional online monitoring unit, the present invention eliminates the 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 the area and the power consumption of the online monitoring unit significantly and improving the energy efficiency of online monitoring techniques. In addition, in the ultra-wide voltage range applications, the time borrowing property of the latch adopted by the present invention can be utilized to prevent a timing error caused by PVT variations, thus enabling the minimization of timing margin and ensuring higher power efficiency. The present invention also discloses a control circuit for use with the online monitoring unit.