中圖分類(lèi)號(hào)： TN710
文獻(xiàn)標(biāo)識(shí)碼： A
DOI：10.16157/j.issn.0258-7998.200389
中文引用格式： 梁偉,，楊春玲，朱敏,，等. 基于同步Buck電路的小功率電子負(fù)載設(shè)計(jì)[J].電子技術(shù)應(yīng)用,，2020，46(10)：106-109.
英文引用格式： Liang Wei,，Yang Chunling,，Zhu Min，et al. Low power electronic load design based on synchronous buck circuit[J]. Application of Electronic Technique,，2020,，46(10)：106-109.

Low power electronic load design based on synchronous buck circuit

Abstract： To meet the needs of laboratory power testing, we designed a small power electronic load based on synchronous buck circuit, which is divided into two parts: the main circuit and the control circuit. An improved main circuit structure based on synchronous buck circuit is proposed and we choose to adopt digital PID control to realize continuous load change, the PID parameter range is calculated according to the small signal model of the main circuit. According to the design scheme of electronic load, a real circuit board is made. The research shows that the designed electronic load runs stably for a long time, and meets the design requirements.

Key words : electronic load；synchronous buck circuit,；control circuit,；PID control