电流限制电路的降压稳压器-Current-Limit Cir
abstract: this article demonstrates how to achieve current limit for the max1692 pwm step-down regulator by using a max4173h current-sense amplifier.
additional information: quick view data sheet for the max1692
quick view data sheet for the max4173
samples and literature order form
technical support: power
a current limit can be added to a step-down converter by using a max4173h current-sense amplifier to inject current into the feedback network. d1 sharpens the threshold of current limit by converting the current sense feedback signal from linear to exponential. this current-limit circuit can be scaled for any output current by adjusting r3. in this case, the max1692 provides up to 600ma output and the max4173h limits the output current by decreasing the output voltage for output current above 300ma.
il (ma) vout (v)
0 3.827
100 3.729
200 3.701
258 3.637 (-5%)
300 3.503
312 3.444 (-10%)
347 3.254 (-15%)
380 3.062 (-20%)
400 2.951
414 2.862 (-25%)
450 2.630
500 2.305
550 1.977
600 1.732
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additional information: quick view data sheet for the max1692
quick view data sheet for the max4173
samples and literature order form
technical support: power
a current limit can be added to a step-down converter by using a max4173h current-sense amplifier to inject current into the feedback network. d1 sharpens the threshold of current limit by converting the current sense feedback signal from linear to exponential. this current-limit circuit can be scaled for any output current by adjusting r3. in this case, the max1692 provides up to 600ma output and the max4173h limits the output current by decreasing the output voltage for output current above 300ma.
il (ma) vout (v)
0 3.827
100 3.729
200 3.701
258 3.637 (-5%)
300 3.503
312 3.444 (-10%)
347 3.254 (-15%)
380 3.062 (-20%)
400 2.951
414 2.862 (-25%)
450 2.630
500 2.305
550 1.977
600 1.732
超声波放大电路测距采用了单片机编程技术？
捷克工程师开发新型无人机，可追踪有害辐射源
赛特斯5G SD-WAN解决方案，应对海量数据爆发式增长带来的挑战
图像传感器的分类及原理
产业链人士：全球LCD面板的价格在3月份将会上涨的更高的
电流限制电路的降压稳压器-Current-Limit Cir
怎么样把握单片机的实际应用？说几句大实话
使用降压控制器产生负电压
浅谈一种基于嵌入式PC的PIII计算机系统设计与实现
FSG13频谱分析仪13.6GHz
plc控制柜怎么接线
TF卡在心电监测仪中的多功能应用
IIHS：奔驰、沃尔沃和特斯拉新车装备AEB系统比例最高
Avocent Positioned in the IT S
5G来临的边缘，高通下半年将开展更多测试研究助力5G商业化
iPhone8发布在即!iphone 8新增腮红金配色:红绿灯+齐刘海,这样的iPhone8你喜欢么
iPhone发布新款 Home键到底需不需要？
五种常见的连接器塑胶材料，分别有什么特点呢？
华为将以“5「机」协同，共创新价值”为主题参会参展
reVISION惊艳登场，Xilinx让视觉导向机器学习更简单！