Design of the Slope Detection Circuit for On-Chip Current Sensing

被引：0

作者：

Ravasz, Richard ^{[1
]}

Maljar, David ^{[1
]}

Arbet, Daniel ^{[1
]}

Stopjakova, Viera ^{[1
]}

Kubinec, Peter ^{[1
]}

机构：

[1] Slovak Univ Technol Bratislava, Inst Elect & Photon, Fac Elect Engn & Informat Technol, Bratislava, Slovakia

来源：

2023 30TH INTERNATIONAL CONFERENCE ON MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEM, MIXDES | 2023年

关键词：

current sensing methods; voltage drop; slope detector; low-power and low-voltage design; CMOS technology;

D O I：

10.23919/MIXDES58562.2023.10203248

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a design and analysis of the slope detection circuit for on-chip sensing of load current in DC-DC converters. The proposed indirect sensing approach is based on measurement of the output voltage slope across the filtering capacitor during the discharging phase. Thus, information about the slope of output voltage can be further used for rather effective control of switches in the converter. The slope detector circuit was designed in standard 65 nm CMOS technology using the nominal supply voltage of 1.2 V and can be used for current sensing within the range from one to hundreds of mA. Since the proposed circuit has mainly digital character, the robustness to process, temperature and supply voltage variations can be ensured rather conveniently.

引用

页码：111 / 115

页数：5

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