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IT之家
29 天
小米 REDMI K80 系列手机 DC 调光比同条件 PWM 方案更加护眼,在原理上 ...
IT之家汇总问答原文如下: OLED 做 DC 真护眼吗?和 LCD 说的 DC 调光一样吗? 经过人因实验证实,K80 所采用的 DC 调光,会比同条件的 PWM 调光方案更加护眼,志愿者在使用相同时长后,DC 调光屏幕对眼睛的负担明显更小,关于衡量干眼、视疲劳的专业指标 ...
EDN电子技术设计
16 天
从一个二十年前的电路开始,改造面包恒温发酵器
D4jednc 这使得Q1产生一个PTAT(与绝对温度成正比)AC信号,该信号等于 o K/5050伏峰-峰值,遵循图2所示的120-Hz log(|sine|)波形。D4jednc 图2:Q1的∆Vbe PTAT log(|sin(r)|) o K/5050波形。(Y轴=伏特,X轴=弧度,红色=平均值=交流基线)D4jednc PTAT信号Vpp由A1a的增益=–2,742,160/R1增强 ...
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