电源设计应用
使用TPS65552A驱动便携式相机闪光灯
在光线较弱的条件下，胶卷或数码摄影的高端设备需要氙气闪光灯管来进行拍摄。氙气闪光灯管可提供瞬间的高强度光源，在对较远处、高速移动或弱光条件下的物...
2009-04-22 1435
EconOscillator Comparison
Abstract: Dallas Semiconductor manufactures several EconOscillators™ (DS1065, DS1077/DS1077L, DS1085/DS1085L, and DS1086). Since many of the features of these devices cannot easily be categorized into fields in the on-line parametric...
2009-04-22 1049
HFTA-07.0：精密参考时钟使用的时钟和数据恢复电路-H
Applications for clock data recovery (CDR) abound in telecommunications, optical transceivers, data and storage area networks, and wireless products. The benefits of CDR technology are increasingly important as designs require much greater...
2009-04-22 1371
DS1086L频率计算器-Frequency Calcula
Abstract: The DS1086L is a Spread-Spectrum EconOscillator™ that generates a spread-spectrum, square-wave output between 130kHz and 66.6MHz. This application note describes an easy-to-use frequency calculator for setting the desired o...
2009-04-22 1291
高精度时钟发生器MAX945x的元件选择和性能测试
摘要：MAX9450/MAX9451/MAX9452是集成了VCXO，具有相同PLL内核和三种不同输出(LVPECL， HSTL，LVDS)的高精度时钟发生器。MAX945x时钟发生器具有四个主要的特点：集成VCXO，工作频率范围宽，PLL...
2009-04-22 1345
DS32X35带有铁电随机存取存储器的高精度实时时钟(RTC
摘要：该应用笔记介绍了DS32X35系列产品。这些器件为带有铁电随机存取存储器(RTC + FRAM)的高精度实时时钟，无需外接电池即可保持存储器内容。 概述随着DS32X35...
2009-04-22 685
使用容振荡器作为扩频时钟发生器-Using a Margin
Abstract: This application note describes how to use a margining oscillator for applications that require spread-spectrum clock generation (SSCG). The DS4M133 margining oscillator serves as the example of the technique. ...
2009-04-22 561
超低抖动时钟合成器的设计挑战
摘要：该应用笔记提出了超低抖动时钟合成器的一种设计思路，其目标是产生2GHz时钟时，边沿之间的抖动< 100fs。分析和仿真结果表明，要达到这一抖动指标，设计难度远远高于预...
2009-04-22 410
Tech Brief 10: ESD Considerati
Abstract: Technical brief suggests ESD protection schemes for RS-232 transceivers. Basic diode clamps, TransZorb™, and zener diodes are considered. Internal latch-up is explained. Protection of vulnerable CMOS devic...
2009-04-22 2816
电表应用中RS-485收发器的设计考虑
摘要：自动抄表技术为电表提供一个通信端口，以电子方式远程读取数值。本应用笔记讨论Maxim RS-485收发器的不同特性，这些特性使RS-485收发器非常适合用于电表通信端口。 ...
2009-04-22 1158
影响开关模式、DC-DC转换器效率的主要因
影响开关模式、DC-DC转换器效率的主要因 本文详细介绍了开关电源(SMPS)中各个元器件损耗的计算和预测技术，并讨论了提高开关调节器效率的相关技术和特点。 ...
2009-04-21 1591
LED照明的电源拓扑结构
LED 照明的电源拓扑结构 本文对 LED 特性及驱动 LED 时需要权衡的因素作了概述，并对适用于驱动 LED 和进行 LED 调光的各种开关电源...
2009-04-21 1453
多媒体处理器动态电源管理技术
多媒体处理器动态电源管理技术 多媒体处理器通常是便携式电子设备中功耗最高的器件。降低 CPU 功耗要求的常见方法是降低时钟频率或工作电压，但是一般...
2009-04-21 742
估算涓流充电实时时钟的超级电容备份时间
摘要：Maxim实时时钟(RTC)系列产品包含了几款带涓流充电器的器件，涓流充电器可以为第二个备份电池或电容充电。电池或电容用来在VCC掉电时维持时钟工作。储存在电容内的能量需...
2009-04-21 1587
投币锂电池：寿命预测中的应用-Lithium Coin-Ce
Abstract: This application note discusses various contributors to battery capacity consumption in a battery-backed application, and how to predict battery lifetime in a system. A designer should be able to use this application note to dete...
2009-04-21 762
Problems and Solutions for Adj
Abstract: Recent U.S. legislation increased the daylight saving time (DST) period by four weeks. This change will affect systems that adjust for DST by using real-time clocks (RTCs) with an integrated DST adjustment. This note discusses is...
2009-04-21 1183
DS1375 Power Line to 60Hz Cloc
Abstract: The DS1375 2-wire digital real-time clock (RTC) is a low-power, clock/calendar that can operate from a digital clock input at one of four frequencies: 32.768kHz, 8.192kHz, 60Hz, or 50Hz. This application note shows how to derive ...
2009-04-21 1336
充电电池和单机快速充电器概述
摘要：本应用笔记简单介绍了镍镉(NiCd)、镍氢(NiMH)和锂离子(Li-Ion，Li+)可充电电池, 讨论它们的性能，并说明在不需要微控制器的情况下如何构建单机结构，安全、快速地为镍氢和锂...
2009-04-21 1444
下一代视频滤波放大器，延长了手持式视频系统的电池使用时间
要：越来越多的便携式设备，例如数码相机、蜂窝电话和便携式媒体播放器等，都开始逐渐增加复合视频输出的连接功能。这类设备中，视频数/模转换器(DAC)产生复合视频信号，在...
2009-04-21 503
负电荷泵为WLED背光应用提供堪比电感电路的高效率
摘要：设计人员通常采用电荷泵或基于电感的boost电路提供白光LED (WLED)的正向导通偏置电压。电荷泵价格较低且使用方便，但截至目前，这种架构所能提供的效率低于基于电感的boost...
2009-04-21 997
Keep Power Consumption in Chec
Abstract: Portable electronic devices usually include a single 3- or 4-connector jack which can be a stereo headphone jack, a mono headphone jack with microphone input and hook switch, or a stereo headphone jack with microphone/hook-switch...
2009-04-21 1243
选择高亮度LED驱动器用于汽车照明应用
Abstract: This application note provides an overview of HB LED driver selection criteria for automotive lighting applications. It reviews HB LED driver topologies and recommends configurations for various automotive lighting applications, ...
2009-04-21 569
ResourceSmart™ (Green) I
Abstract: As consumers demand environmentally friendly ("green," or ResourceSmart) electronics, design engineers must seek new design techniques, standards, and products. This application note lists links to a variety of government, indust...
2009-04-21 523
Designing a 4-20mA Current Loo
Abstract: Current-mode data transmission is the preferred technique in many environments, particularly in industrial applications. This application note describes the design of a 4-20mA current loop using the MAX1459 sensor signal conditio...
2009-04-20 3277
编辑推荐厂商产品技术软件/工具OS/语言教程专题
| 电机控制 | DSP | 氮化镓 | 功率放大器 | ChatGPT | 自动驾驶 | TI | 瑞萨电子 |
| BLDC | PLC | 碳化硅 | 二极管 | OpenAI | 元宇宙 | 安森美 | ADI |
| 无刷电机 | FOC | IGBT | 逆变器 | 文心一言 | 5G | 英飞凌 | 罗姆 |
| 直流电机 | PID | MOSFET | 传感器 | 人工智能 | 物联网 | NXP | 赛灵思 |
| 步进电机 | SPWM | 充电桩 | IPM | 机器视觉 | 无人机 | 三菱电机 | ST |
| 伺服电机 | SVPWM | 光伏发电 | UPS | AR | 智能电网 | 国民技术 | Microchip |
| 开关电源 | 步进电机 | 无线充电 | LabVIEW | EMC | PLC | OLED | 单片机 |
| 5G | m2m | DSP | MCU | ASIC | CPU | ROM | DRAM |
| NB-IoT | LoRa | Zigbee | NFC | 蓝牙 | RFID | Wi-Fi | SIGFOX |
| Type-C | USB | 以太网 | 仿真器 | RISC | RAM | 寄存器 | GPU |
| 语音识别 | 万用表 | CPLD | 耦合 | 电路仿真 | 电容滤波 | 保护电路 | 看门狗 |
| CAN | CSI | DSI | DVI | Ethernet | HDMI | I2C | RS-485 |
| SDI | nas | DMA | HomeKit | 阈值电压 | UART | 机器学习 | TensorFlow |
| Arduino | BeagleBone | 树莓派 | STM32 | MSP430 | EFM32 | ARM mbed | EDA |
| 示波器 | LPC | imx8 | PSoC | Altium Designer | Allegro | Mentor | Pads |
| OrCAD | Cadence | AutoCAD | 华秋DFM | Keil | MATLAB | MPLAB | Quartus |
| C++ | Java | Python | JavaScript | node.js | RISC-V | verilog | Tensorflow |
| Android | iOS | linux | RTOS | FreeRTOS | LiteOS | RT-THread | uCOS |
| DuerOS | Brillo | Windows11 | HarmonyOS |
