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DS1870采用外接电阻时的调节范围/分辨率
摘要：DS1870用于射频(RF)功率放大器偏置控制，如果不接外部电阻，采用5V基准，其偏置电压范围为3V至5V。本应用笔记旨在展示如何利用外接电阻达到适当的范围和分辨率。可以利用...
2009-04-28 670
利用DS4303为LDMOS RF功率放大器提供偏置
摘要：LDMOS RF功率放大器因其极高的性价比在GSM和CDMA基站市场占据了主导地位。使用LDMOS放大器时，保证高性能的一个关键因素是补偿栅极偏置电压，以在温度变化时保持恒定的静态...
2009-04-28 886
数字可调电压基准源-Digitally Adjustable
A digitally adjustable voltage reference is useful in many applications. For instance, it can be used to finely tune the reference voltage when absolute accuracy is required or to adjust the reference voltage to match the full-scale voltag...
2009-04-28 2135
在便携式应用中数字调整的DC-DC转换器输出电压
There are many portable applications that optimize circuit performance by adjusting the output voltage of a DC-DC converter. For instance, many microprocessors can operate at a low voltage to save power, and then operate at a high voltage ...
2009-04-28 1342
利用数字电位器的调节降压DC-DC转换器设计-Using D
Abstract: This application note describes how to use a digital potentiometer to generate an adjustable voltage supply using a MAX1776 step-down DC-DC converter. A reference design using the DS3903 is shown that features the ability to prod...
2009-04-28 2218
利用DS1841对数电阻优化雪崩光电二极管(APD)的偏置范
摘要：本文阐述了如何使用DS1841对数电位器调节APD偏置电路的输出范围。为了使调节过程更简单，本文还提供了电子数据表。 APD偏置电路DS1841可受温度控制的...
2009-04-28 743
Light Is On When Power Is Out
Abstract: A loss of AC power during darkness (sensed by a photoresistor) turns on an array of battery-powered white LEDs. To conserve power, a timer turns off the LEDs after a particular period of time (for example, 10 minutes). ...
2009-04-27 962
动圈式仪表措施低级电流-Moving-Coil Meter
Abstract: The MAX4172 IC substitutes a current amplifier for the shunt normally associated with a moving-coil meter. This circuit allows use of the moving-coil meter, even when the meter current is a large fraction of the current being mea...
2009-04-26 626
3V DAC在±10V中的应用
摘要：大多数现代系统中的电子器件通常采用3.3V或更低的电压供电，但有时还需提供±10V的电压驱动外部负载(工业应用中非常普遍)。尽管有些数/模转换器(DAC)能够以±10V的摆幅驱动...
2009-04-26 2114
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. ...
2009-04-25 850
4路(3路数据+1路时钟)LVDS串行器/解串器的延迟裕量测
摘要：对于MAX9209/MAX9222等多通道输入的LVDS串行/解串器，测量接收器的延迟裕量以判断它们的抖动容限是一种行之有效的方法。虽然一些文献给出了接收端的延迟定义，但还没有公认...
2009-04-25 1187
Selecting and using RS-232 Int
Abstract: Devices and circuits are described for RS-232 interfaces operating from a wide range of power supplies. Systems are described for operation with the traditional triple supply of +5/12/-12V, +5/+12V, +5V only, +3V to +5.5V only, +...
2009-04-24 1503
Circuit Enables PCs to Communi
Abstract: This application note describes a simple circuit allowing a PC to communicate via an IrDA-specified optical data port. The circuit employs only two integrated circuits (ICs), an external infrared LED, and an external avalanche ph...
2009-04-24 1361
Parallel-Port Interface Powers
Abstract: A SOT step-down DC-DC converter efficiently "steals" power from a parallel port while a SIM/Smart Card level shift integrated circuit (IC) completes the interface. This allows the parallel port to power, and communicate with, low...
2009-04-24 1044
冗余收发器RS-232链路，提供±40V过压保护
摘要：并行RS-232收发器能够在对安全性要求苛刻的应用中提供双重可靠保证。但是，这种冗余收发器结构会为数据总线增加额外的负载。本应用笔记提供了一种解决上述问题的方案...
2009-04-24 854
优化DS2715电池充电器的负载切换功能
摘要：智能充电器IC集成了电池负载开关功能，非常适合于低成本应用。充电电源移除后，DS2715电池充电器IC对电池负载进行智能检测，无缝地向所连接的负载保持供电。本应用笔记...
2009-04-24 1081
审议" Deboo "单电源集成-Con
Abstract: The "Deboo" Integrator simplifies the use of single-supplies by ground-referencing both the input and the output. The design of standard inverting integrators is simple when bipolar supplies are available, but i...
2009-04-24 517
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。 ...
2009-04-24 835
简化电源测试的SPST双极性功率开关
摘要：本应用笔记介绍了一种独立的隔离SPST (单刀/单掷)双极性电源开关，用于产生200A、75V瞬变信号。该开关能够用来测试电源或电源IC，用于高速电路的测试，开关的通、断时间可...
2009-04-24 966
电源管理与使用的高速微控制器-Using Power Man
Abstract: Power consumption in battery-backed systems employing microcontrollers is discussed in this application note. Most Dallas Semiconductor high-speed microcontrollers, including the DS87C520, DS89C450, DS80C400 and DS5250 utilize va...
2009-04-23 2516
凌力尔特公司推出4通道12位/10位/8位DAC LTC26
凌力尔特公司 (Linear Technology Corporation) 推出 4 通道 12 位、10 位和 8 位轨至轨数模转换器 (DAC) LTC2634，该器件在 3mm x 3mm QFN 和 MSOP 封装中集成了一个精确的基准。LTC2634 是凌力尔特公司...
2009-04-23 551
高可靠系统的电源电压监控和排序
摘要：该应用笔记说明高可靠系统中合理监控电源电压和电源排序的必要性，给出了监控器的选择标准，并说明上电复位(POR)电路、多电压监控和余量功能的必要性。另外，还讨论了...
2009-04-23 967
满足电源跟踪要求的简单器件
摘要：该应用笔记讨论上电和掉电过程中跟踪电源电压所采用的不同技术和架构。例举了低成本解决方案以及功能更全面、集成EEPROM的可编程解决方案。 对于大功率、...
2009-04-23 724
MAX6876电源跟踪/排序器用户指南
摘要：本应用笔记提供了配置MAX6876的入门指南，说明了如何设置门限、延迟时间、电流测量及排序/跟踪次序。 MAX6876的关键特性 可对四路电源电压进...
2009-04-23 932
硅计时电路的常见问题-Silicon Timed Circu
Abstract: The technical brief answers frequently asked questions (FAQs) regarding Dallas Semiconductor silicon timed circuits (STCs), also known as delay lines. This brief discusses both laser-trimmed (older) as well as EEPROM-trimmed (new...
2009-04-22 775
简化电源测试的SPST双极性功率开关
摘要：本应用笔记介绍了一种独立的隔离SPST (单刀/单掷)双极性电源开关，用于产生200A、75V瞬变信号。该开关能够用来测试电源或电源IC，用于高速电路的测试，开关的通、断时间可...
2009-04-22 428
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 |
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