电源新闻
电子发烧友网为您提供最新开关电源新闻，UPS电源资讯，最精准的电源适配器要闻，是您了解芯片电源行业新闻动态的网络平台。
微电路的正电源电流监视器-Micropower Circui
Abstract: The following application note shows a circuit that converts the load current of a positive power supply into a ground referenced signal voltage using the ICL7612 operational amplifier. The inexpensive circuit o...
2009-05-06 782
手持给出系统柔性电路故障保护-Handy Circuit G
Abstract: When it is necessary to plug in a board into a system that is currently powered, it is critical to control the inrush current to prevent damage/system fault conditions. This application provides a simple circuit to achieve this f...
2009-05-06 837
硅双极宽带锁相环积木块集成电路-A Silicon Bipo
Abstract: A broadband phase-lock loop (PLL) building block integrated circuit (IC) that can accommodate signal frequencies from 0.5GHz to 9GHz is presented. The design integrates a prescaler with selectable divide ratio, a phase detector, ...
2009-05-06 815
创建非线性传递函数与线性电位器电路-Creating Non
Abstract: Linear digital potentiometers (pots) can be used in non-linear applications such as adjusting volume control in audio applications. This article discusses how to create a "pseudo-logarithmic" taper digital pot by simply adding a ...
2009-05-05 730
低噪声音频电源电路-Low Noise Audio Powe
Abstract: Audio application note describes a simple, compact scheme that provides a low noise, low ripple power source for use in audio amplifiers, microphones, headphone amplifiers, CODECs and other audio circuits. ...
2009-05-05 1031
利用Direc tDrive技术从3.3V单电源产生2VRM
摘要：本应用笔记将Maxim的DirectDrive技术与传统的单电源供电音频线驱动器相比较，给出了DirectDrive结构的优点，特别是在机顶盒和电缆调制解调器应用中的优势。 ...
2009-05-05 585
自动电平控制简介
摘要：自动电平控制(ALC)是一种自动控制输出给扬声器的功率的技术。ALC可防止扬声器过载并优化动态范围。本应用笔记简单介绍ALC技术，并展示了其在MAX9756/MAX9757/MAX9758立体声扬声...
2009-05-05 1607
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...
2009-05-05 1117
参数测量单元(PMU)的布线指南
摘要：本应用笔记讨论了多种措施来指导系统设计人员采用正确的布局和信号走线技术。对布线设计和元件的相关介绍将减少用户在使用PMU时的噪声，并有助于处理散热问题。 ...
2009-05-05 1111
节电模式降低继电器驱动功耗
摘要：本应用笔记讨论具有内置节电电路、能降低总功耗的继电器驱动器MAX4822/MAX4824。在典型应用中，总节电范围能达5.5%至68.5%，具体数值取决于所使用的继电器类型。节电模式还...
2009-05-05 1072
MAX9979管脚电子IC中PMU模式操作
摘要：该应用笔记结合各种模式的等效电路图介绍了MAX9979参数测量单元(PMU)最常用的四种工作模式(FVMI、FVMV、FIMI和FIMV)。关于各种功能的详细介绍和模式操作请参考MAX9979数据资料。 ...
2009-05-05 1552
简单的电路保护系统过热-Simple Circuit Pro
Abstract: Using a temperature switch and fan driver IC along with a remote diode temperature switch provides thermal protection and simple fan drive functions for a system. This 2-chip circuit provides fan control, over-t...
2009-05-04 535
多电压系统需要电源电压测序-Multiple Voltage
Abstract: The following application note discusses multiple solutions for sequencing power supplies and sequencing reset outputs. It discusses the advantage and disadvantages of using a discrete solution versus a more integrated solution. ...
2009-05-04 658
选择合适的系列电压基准源的绝对精度电压输出数模转换器设计-S
Abstract: This article provides an in depth analysis, procedure, and selection tables for selecting the optimum series voltage reference for voltage output DACs. It covers all of the important parameters such as: input supply voltage, refe...
2009-05-04 1596
Current Limited DC-DC Controll
Abstract: USB powered devices require a regulated supply. Unfortunately, the USB bus voltage can vary from 4V to 9V. Configuring the MAX668 boost controller into step-up/step-down topology can generate a current-limited regulated supply. ...
2009-05-04 1481
Proper Layout and Component Se
正确的布局和元件选择控制电磁干扰 Abstract: Understanding the physics of voltage regulator topologies is important in designing power systems for EMI and EMC compliance. In particular, the physical principl...
2009-05-04 1066
选择合适的CMOS模拟开关-Selecting the Ri
Abstract: This tutorial outlines the basic construction, operation, and applications of analog switches. On-resistance, flatness, and charge-injection, each a performance-related specification, are defined. Application-specific features in...
2009-05-04 1905
驱动LED的电池供电的应用：控制亮度功率高效-Driving
Abstract: White light-emitting diode (WLED) drivers provide high efficiency and brightness matching for LCD backlighting in displays. To control brightness, these drivers regulate current going into LEDs that are arranged in either serial ...
2009-05-04 972
双向电流检测与单输出-Bi-directional Curr
Abstract: Battery operated devices often need to monitor both charge and discharge currents. A dual current-sense amplifier and differential amplifier are combined to produce a single output voltage that indicates magnitude and direction o...
2009-05-04 1054
通道晶体管增强调节的输出电流-Pass Transistor
Abstract: A 5V linear regulator with external pass transistor (which provides an additional, parallel path for load current) delivers twice as much output current (150mA to 300mA) while maintaining 5V regulation. In Figur...
2009-05-03 1124
LVDS多媒体接口在汽车电子领域的应用前景
摘要：数据通信需求的增长造就了多种新型数据接口，这些数据接口针对不同的应用领域提供相应的电平指标。高数据率、高抗干扰性和构造简单成为开发这些接口的关键要求。...
2009-05-03 749
MAX16800测试板
摘要：MAX16800测试板是一个简单的高亮度LED驱动电路板，专为驱动Osram、Lumileds、Nichia、Cree或其它LED驱动设计。测试表明，MAX16800适合用于汽车的内部和外部LED照明，以及商业和工业LE...
2009-05-03 758
使用数字分压器实现车灯调光，以节省功耗、提高效率
摘要：本应用笔记介绍怎样使用低成本数字分压器来实现灯光强弱控制，既节省了功耗又提高了效率。 引言在汽车以及其他照明应用中，通常需要调节内部灯...
2009-05-02 721
下一代汽车照明电源
摘要：目前，汽车中大多采用LED和CCFL作为背光源，两种方案均需要特殊的供电电源。本应用笔记讨论了LED、CCFL灯源的供电方案，可理想用于汽车的内部和外部照明。 ...
2009-05-02 646
1 Dimming Ratio with the DS388
Abstract: This application note describes how CCFL lamps can be dimmed and how a user can maximize the dimming ratio of a CCFL inverter by using the DS3881 and DS3882 CCFL controllers. The note offers guidelines for practical implementatio...
2009-05-02 1359
使用MAX15005用于LED应用系统的供电和驱动
摘要：本参考设计是汽车LED应用的完整系统设计。采用MAX15005电流模式控制器，将标准铅酸汽车电池的电压升至21V，用于驱动一串汽车LED。 下列提供了汽车LED系统的参...
2009-05-02 726
交流耦合的优点
摘要：本应用笔记介绍了交流耦合LVDS链路的优势，文章提供了电容选择的注意事项，并讨论了端接拓扑。 概述使用电容实现LVDS数据连接的交流耦合有很多益处...
2009-05-02 5656
How to Prevent Flicker Caused
Abstract: The DS3881 and DS3882 CCFL controllers are used in automotive, industrial, and avionic applications to backlight LCD panels that require a high dimming ratio. These CCFL controllers use both analog lamp-current amplitude modulati...
2009-05-02 626
选择高亮度LED驱动器用于汽车照明应用-Selecting
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, ...
2009-05-02 616
保护电流检测放大器反对过压瞬变-Protect Curren
Abstract: This application note describes methods of protecting lower-voltage current sense amplifiers from high-voltage spikes and transients. Such conditions are frequently encountered in automotive car battery operation, and are referre...
2009-05-02 455
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 |
工商网监