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技术资料 PW2163-2.0.pdf规格书下载
The PW2163 is a high efficiency 500 kHz synchronous step-down DC-DC converter capable ofdelivering 3A current. The PW2163 operates over a wide input voltage range from 4.5V to 18V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss. Low output voltag ...
单片机编程 lpc2478完全使用手册
NXP Semiconductor designed the LPC2400 microcontrollers around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded Trace. The LPC2400 microcontrollers have 512 kB of on-chip high-speedFlash memory. This Flash memory includes a special 128-bit wide me ...
技术资料 PW2330-2.0.pdf规格书下载
PW2330 develops a high efficiency synchronous step down DC-DC converter capable of delivering3A output current. PW2330 operates over a wide input voltage range from 4.5V to 30V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss. PW2330 adopts the pr ...
技术资料 PW2205-2.0.pdf规格书下载
PW2205 develops a high efficiency synchronous step-down DC-DC converter capable of delivering5A output current. PW2205 operates over a wide input voltage range from 4.5V to 30V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss.PW2205 adopts the ins ...
技术资料 基于UCC28019的PFC电路设计
为设计高效率、低损耗的PFC电路,本文基于UCC28019进行电路设计。以UCC28019输出的PWM波形来控制Boost升压斩波为核心电路,使电路中的电容交替地充放电、电感交替的储存和释放能量,最后实现在输入AC20V~24V电压情况下稳定输出DC38V。测试结果表明,系统实现效率为95%左右,电压调整率小于1%,电源功率因数0.99。交流输入电压为19 ...
技术资料 分析基于单片机的嵌入式多节点网络通信系统设计
嵌入式系统将传统的人为控制系统转变为机器控制系统,提升了系统的精确性与稳定性,有效地节省了传统模式产生的损耗问题。随着电子技术的不断发展,基于单片机的嵌入式多节点网络通信系统设计逐渐完善。嵌入式系统设计的核心就是单片机,而stm32作为一种32位微控制器,在嵌入式多节点网络通信系统应用中的效果显著。基于此,文章 ...
技术资料 基于单片机的智能火灾报警器设计
随着城市化进程的加快和人口的迅速增长,我国火灾发生的次数、频率、造成的损失都不断上升。因此,如何在最短时间内发现火灾并控制灾情,使人民生命、财产损失降到最小就显得尤为重要。该文采用STC89C52单片机为中央控制单元,应用MQ-2型半导体气敏式烟雾传感器和DS18B20数字温度传感器为检测单元,外加4个功能设置按键,4位一体 ...
技术资料 基于单片机的智能风扇的设计与实现
为了解决传统风扇无法进行人体感知从而导致损耗大量的电力资源且存在安全隐患,设计开发了一个智能风扇系统。该系统以单片机为核心,采用DS18B20温度传感器采集数据,将周围环境温度在LED数码管上实时显示,根据实时温度与系统设置的阈值,同时人体红外模块监测周围环境是否有人,来决定风扇是否开启,当没有人在房间时,风扇自动关 ...
PCB相关 pci e PCB设计规范
This document provides practical, common guidelines for incorporating PCI Express interconnect
layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10-
layer or more server baseboard designs. Guidelines and constraints in this document are intended
for use on b ...
可编程逻辑 pci e PCB设计规范
This document provides practical, common guidelines for incorporating PCI Express interconnect
layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10-
layer or more server baseboard designs. Guidelines and constraints in this document are intended
for use on b ...