Method of Single Event Effects Radiation Hardened Design for DC-DC Converter Based Load Transient Detection

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外文摘要：Aiming at the impact of load current change on single-event transient,the essential difference be-tween single-event transient and load transient of DC-DC converter is deeply studied.A hardened circuit based on load transient detection is proposed.The circuit detects the load transient information in time and outputs a control signal to control the single event hardened circuit,thereby realizing the improvement of the transient characteristics of the system under dynamic conditions.Based on the 180 nm bipolar-CMOS-DMOS(BCD)process,the design and physical verification of a boost converter are completed.The experimental results show that the input voltage range is 2.9-4.5 V,the output voltage range is 5.8-7.9 V,and the load current is 0-55 mA.During load transients,the load detection circuit turns off the hardened circuit in time,avoiding system oscillation and widening the dynamic range of the hardening circuit.Under the single-event transient,the output voltage fluctuation of the system does not ex-ceed the maximum ripple voltage,and the single-event transient suppression ability reaches more than 86％,the sys-tem can work well with linear energy transfer of about 100 MeV·cm2/mg.

外文关键词：

DC-DC converterAnalog single-event transient effectLoad transient detectionRadiation hard-ened by design

作者：

Zhongjie GUO、Nan LIU、Hu LU、Mengli LI、Ziyi QIU

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作者单位：

School of Automation and Information Engineering,Xi'an University of Technology,Xi'an 710048,China

基金：

National Natural Science Foundation of ChinaKey Research and Development Plan of Shaanxi ProvinceShaanxi Innovation Capability Support ProjectExcellent Master Seed Fund of Xi'an University of Technology

项目编号：

621713672021GY-0602022TD-39252082114

出版年：

2024

DOI：

10.23919/cje.2022.00.442

电子学报(英文)

CSTPCDEI

ISSN：1022-4653

年,卷(期)：2024.33(5)