一种采用格雷码的低功耗软启动电路设计  

A Low-Power Soft Start Circuit Design Using Gray Code

作　　者：王淼[1] 王鑫 WANG Miao;WANG Xin(The 13th Institute of China Electronics Technology Group Corporation,Shijiazhuang 050000;Liaoshen Industries Group Co..,Ltd.,Shenyang 110000)

机构地区：[1]中国电子科技集团第十三研究所,石家庄050000 [2]辽沈工业集团有限公司,沈阳110000

出　　处：《环境技术》2024年第9期202-207,共6页Environmental Technology

摘　　要：介绍了一种采用格雷码的低功耗软启动电路,采用数控软启动技术,克服了传统软启动电路需外接大电容、增加引脚数等缺点,消除了大电容带来尺寸面积与匹配性的影响,提高了DC-DC转换器的稳定性:软启动电路调用了一种控制逻辑的编码方式,即格雷码编译。此模式的转换方式为,在电位逐渐增加期间,仅有一个码点发生改变。有效避免了码位变化时诱发的误输出,减少了普通二进制编码在频繁变化下产生的尖峰电流。格雷码的转换模式可以减小系统误差,提升整体电路的稳定性,在全部编译结束后,软启动结构自动切断整个编码系统,实现此结构的低功耗模式。This paper introduces a low power soft start circuit using Gray code,which uses soft start technology to overcome the question of traditional soft start circuits such as requiring external large capacitors and increasing the number of pins.It eliminates the impact of large capactiors and improves the stablilty of DC-DC converters;The soft start circuit calls a coding method for control logic.During the gradual increase in potential,only one code point changes.This mode effectively avoids the erroneous output caused by code point changes and reduces the peak current generated by regular binary encoding under frequent changes.The conversion mode of Gray code can reduce system errors and improve the stability of the overall circuit.After all compilation is completed,the soft start structure automatically cuts off the entire encoding system,achieving a low-power mode for this structure.

关 键 词：格雷码 数控软启动 低功耗 DC-DC转换器 

分 类 号：TN433[电子电信—微电子学与固体电子学]