A 120 A Wide-band Transconductance Amplifier Based on DCCT

被引：0

作者：

Zhai, Changwei ^{[1
]}

Zhao, Jianting ^{[2
]}

Lu, Yunfeng ^{[2
]}

机构：

[1] Harbin Inst Technol, Harbin 150080, Peoples R China

[2] Natl Inst Metrol, Beijing 100029, Peoples R China

来源：

2024 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS, CPEM 2024 | 2024年

基金：

国家重点研发计划;

关键词：

transconductance amplifier; DCCT; high stability; capacitive leakage; time constant;

D O I：

10.1109/CPEM61406.2024.10646018

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 describes a simple solution to realize a 120 A wide-band transconductance amplifier based on a DC current Transducer (DCCT). Highly accurate output current with high bandwidth (150 kHz) can be readily delivered due to the low Common Mode Rejection Ratio (CMRR) error and low time constant of the closed-loop circuit, which benefits from the adoption of a modified DCCT. The transconductance amplifier is capable of converting 1 V into 120 A current output, with a bandwidth from DC to 150kHz.

引用

页数：2