公开(公告)号：US20240371438A1

公开(公告)日：2024-11-07

申请号：US18031356

申请日：2022-07-07

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xingsheng WANG ,  Yinghao MA ,  Fan Yang ,  Chengxu WANG ,  Menghua HUANG ,  Xiangshui MIAO

IPC: G11C13/00

Abstract: A high-speed and large-current adjustable pulse circuit, an operating circuit and an operating method of a phase-change memory are provided. The high-speed and large-current adjustable pulse circuit is provided with a clamping structure, a current mirror structure and a leakage current shutdown structure. The clamping structure including a clamping operational amplifier and a first MOS transistor is configured to generate a reference current. The current mirror structure is configured to generate an output current proportional to the reference current. The leakage current shutdown structure is configured to turn off the current mirror structure and reduce leakage current when pulse disappear. In this way, a device with an adjustable current and a reduced leakage current is realized.