-
- Can a Supercapacitor Replace Your Battery for Backup Power
- What Can You Create with Frequency Synthesizers?
- How Fast and Safe Will 5G Wireless Networks Be
- These Industrial Communications ICs are Oldies but Goodies for Good Reason
- DIY Engineering Projects for Your Valentine
- Why Embedded Systems Designers Should Care About OpenSSL
- Balancing Power Demands of High-Voltage Automotive Power Applications
- PUF Technology Protects Against Invasive Attacks
- 快速、高精度电池管理系统助力更安全的电动汽车
- MAXIM远程调谐器方案帮助简化车载音响系统设计
- Moving Toward Value-Based Healthcare Using Wearables and Patient-Generated Data
- A Smarter Way to Design Touchscreens
- Want to Avoid Counterfeiting?
- Ultra-Small Wearable Healthcare Design Platform
- 打开口袋,释放工业4.0的洪荒之力
- Solving EMI Challenges in LED Headlamps
- embedded world 2017
- 工程设计是为傻瓜准备的(我就是活生生的例子)
- See & Hear Maxim Technologies at Mobile World Congress
- Keeping Cars Safe and Reliable Via ISO 26262 Certification
- Fast (But Not Too Fast) Op Amps for Reliable Very Low-Power Systems
- Shade-Proof Your Solar with Maxim Solar Cell Optimizers
- How Machine Learning Can Speed Up Your Design Cycle
- MakeWithMaxim Design Contest
- IO-Link —“智造”无限可能!
- How 3D Printers Help You Evaluate ICs
- Optical Networking Technologies OFC 2017
- How You Can Help Bring 20.8 Billion Connected Things Into the World
- 参考设计不仅仅是IC,而是完备的系统
- 工业4.0来势汹涌,“模拟整合”是主要受益者之一
- Putting the power of Industry 4.0 in your Pocket
- Battery fuel gauge ICs do more
- Reference Designs: Game Changers for Complex Projects
- 为什么黑客急不可耐地想进入您的汽车
- 您的家居可能越来越智能——但防止黑客的安全性又如何呢?
- What’s Your Favorite IoT Platform? Vote Today!
- 实现智能电网故障的快速、高精度检测
- Template
- 隔离电源参考设计
- 多通道、通用模拟输入 参考设计
- Fitness/Wellness Wearables Reference Design Saves Development Time and Effort
- Simplifying Design of Pulse Rate/Blood-Oxygen Wearables
- Don’t Design the Next Useless IoT Gadget
- Exactly What the Doctor Ordered: Cars that Monitor Their Own Health and Yours
- Reducing Component Count in Factory Automation Applications
- Maxim Highlights Auto, Wearable Healthcare Tech at CES
- Cut 6 Months Off Health Application Design Cycle
- Future Engineers Make with Maxim at Yale’s YHack Hackathon
- Interesting Inventions Inspire Ingenuity
- Ants Have Their Own Smart Cities—Why Can’t We?
- Proximity Sensing Made Easier
- Get Longer Battery Life By Lowering Quiescent Current
- Eat Pie and Win a Dev Board
- Why System Monitoring ICs Are Good Analog Insurance
- Who is nanoMan?
- Why Now Is the Time to Consider Wired Interface Solutions
- Get to Market Quickly with Your Secure Wearable Health Designs
- Why Powerline Communications is Great for Noisy Industrial Environments
- How Factory Automation Can Support Reshoring
- Don’t Become the Next Hacking Headline
- One Smart Design: Low IQ Boost Converter
- A Look at the Future of Wearable Healthcare Design
- 为什么摄像头接口对ADAS系统设计至关重要
- Reduce Calibration Costs for Industrial Process Control
- Making Smart Energy Even Smarter Via nanoPower Technology
- We Love Startups! Let Us Help You Prototype Quickly
- Safeguard IoT Designs with Holistic Approach to Security
- Surprising Facts About the Cost to Operate Your Electric Car
- 让黑客远离您的POS终端
- 高级汽车照明——重新定义更高性能与安全性
- Applying Peak Current Mode Control for High Performance in Switching Regulators
- iButton背后的故事
- Meeting Big Demands for Power in Small Devices
- The Jedi Master – Cyber-Physical Systems and Industrial Convergence
- 快速了解如何利用NFC保护您的系统
- Test Engineer Celebrates 25 Years at Maxim
- 支持虚拟医疗的三种创新技术
- nanoMan:使用这款电源设计仿真工具
- Designing Accurate, Wearable Optical Heart Rate Monitors
- Maxim Interns Showcase Summer Projects
- Protect Your Medical Device Endpoints with Secure Authenticators
- Are Your Power Supplies Doing the Job?
- 特斯拉的Model 3改用PMAC同步驱动电机
- Learn 3 Key Ways to Lock In Security for Your IoT Design
- Recloser Controllers Maintain Smart Grid Uptime
- Operate Your Design from a Single Battery, with the Right Converter
- Show Your Engineering Ingenuity in Summer of Love Contest
- SDR Baseband Processing—Flexibly and Cost-Effectively
- Embedded Security ICs Safeguard PCs and Payments
- Want Your Oven to Play Your Favorite U2 Song?
- Choosing the Right Power Management ICs for Automotive Designs
- 设计耳戴式设备?微型PMIC可有效提升电池寿命
- Webinar: Learn Why It’s Smart to Have a Low IQ
- Why Sensors Are the Next Big Thing
- Building a Self-Balancing Robot with Feature-Rich Featherboard
- Helping You Create Rugged, Long-Lasting Mil/Aero Designs
- Why You Can’t Afford to Overlook Design Security
- Why Iso-Buck Converters Are Better than Flyback Converters
- Learn Ways to Improve Power Efficiency—Free Seminar
- Are Machines Taking Over?
- Are You Doing Enough to Build Trust in Our Connected World?
- Aggies Invent: 48 Hours from Idea to Prototype
- IoT World: From IoT Patterns to Blockchain Security
- Building the Self-Aware Digital Factory
- Flexound Systems Brings Immersive Dimension to Music
- Better Battery Runtimes Without Characterization
- Driving Greater Performance and Safety from Advanced Automotive Lighting
- 安全IC如何保护IoT设备中的数据传输
- How Fast Can You Solve This Crossword Puzzle?
- Why Not Design a Smaller PLC?
- 5 Blog Posts You Don’t Want to Miss
- Q&A: Maxim's Randall Wollschlager on Designing the Future Car
- Simplify Power Circuit Design with Simulation
- How Medical Wearables Enhance Quality of Life
- IO-Link Handbook Presents Primer on Designing Sensors and Masters
- ELIV 2017: Learn Ways to Design Safer, Smarter Cars
- Infomart Creates Tiny Power-over-Ethernet Devices
- Advancing Safety and Infotainment for Cars of Today and the Future
- How PA Linearization Solves Key Challenge for Remote PHY Fiber Nodes
- 更安全、更智能汽车的必经之路
- Many Technologies Are Vying for Your IoT Wide Area Network Design
- Are Your IoT Devices Immune to Cyberattacks?
- Machine Learning Club Drives Data Science Demand
- Designing Tiny, Connected Products? Don’t Miss this Webinar
- How Factory Automation Can Support Reshoring
- How Can We Create One Trillion Connected Devices?
- Modular System Speeds Up IoT Design Cycle
- Keep Designs Cool with a Tiny, Low-Power Temperature Sensor
- Circuit Protection You Might Not Have Thought About
- 你无法盗取一个并不存在的密钥
- See Demos of Turnkey Security ICs at TRUSTECH
- Synchronous Switching Regulators: Talk Time or Standby Time?
- 5 Ways Solar Power Usage Will Change By 2037
- What Kind of World Will One Trillion Connected Devices Produce?
- Can We Fix the Cybersecurity Mess?
- Three Great Personal Gadgets for Engineers
- Secure TLS in Connected Devices with a Companion Security IC
- Are There One Trillion Things to Connect?
- Maxim to Demo High-Speed SerDes Links and More at CES 2018
- Achieve Precision Control of Vibration for Wearables
- Secure Microcontrollers Safe from Spectre and Meltdown Flaws
- How to Stop an Invasive Attack on Your Design
- Smaller, Lower Power 4-20mA Sensor Transmitters for Industrial Equipment
- 利用安全电量计防止假冒电池
- Get Technical Tips from Maxim in the Lab Videos
- 如何通过电池电量计建立客户信任
- Sustaining the IoT—What Will This Take?
- With Reference Designs, No Need to Reinvent the Wheel
- How a Software Isolation Solution Protects IoT Devices
- AM Radio in Your Electric Vehicle? Not Always
- Get Technical Tips from Maxim Unfiltered Videos
- Wirelessly Charge Your Next Design
- 数字健康技术如何改善预防性保健护理
- A Look at the Latest Battery Technology from Tesla
- #MakewithMaxim Inspires Engineering Inventiveness
- Extend Vehicle Driving Range with Accurate Battery Management System
- 需要更紧凑封装的即插即用电源?您找对地方了
- Powering Motor Encoders and Resolvers
- Kids Invent Their Future at Upcoming Invention Convention
- Catch this Webinar If You're Designing Hearables and Wearables
- Flow Battery Technologies for Utility-Scale Systems
- High-Speed Serial Links for ADAS and Infotainment
- Got an IoT Design Idea? Enter Our Contest
- 谁是WiFi设备的背后英雄
- 遇见“达尔文”,为IoT而生的全新微控制器“物种”
- Which Type of Analog Hero Are You?
- How Security ICs Address New Medical Device Regulations
- Deminar: 3 Ways that Analog ICs Can Strengthen Your Design
- On-Demand Webinar: Hardware Security with PUF Technology
- The Beauty of Precision Op Amps
- Kid Inventors Showcase STEM Skills at California Invention Convention
- How iButton Can Enhance Food Quality
- Why Your Audio DAC or Digital Amp Should Spec Dynamic Range Instead of SNR
- Increase Motion Control System Accuracy with Higher Performance RS-485 Transceivers
- Designing Secure, Scalable Contactless Payment Systems
- High-Bandwidth Serial Links for Safer Cars
- Keeping an Eye on Battery SOC in Wearables and Hearables
- Get High-Speed USB Port Protection for Industrial Voltages
- Don’t Worry – Isolate All Those Digital Signals
- Keep Tabs on Essential Electronic Loads with Supervisory ICs
- Optical Sensing Opens New Opportunities in Healthcare
- LED Bulb Inspires Creation of Maintenance-Free Cybernetic House
- A Better Listening Experience Starts with the Right Stereo Audio Codec
- Quieting the Noise: Meeting EMI Standards in Power Supply Designs
- Making Sweet Music with Raspberry Pi
- Putting Intelligence in the IoT
- Got a Wearable Health Design Idea? Here’s How to Make It Accurate
- What Will You Create with Optical Biosensors?
- How Can We Power Our Invisible Intelligence?
- What Can GPS Do for Your Design?
- Keeping the IoT Safe from Hackers
- Idea to IoT Product in Just Days? Talk to zGlue
- Regulate Car Battery Voltages for ADAS Applications
- Open-Source Framework Detects Memory Corruptions in Embedded Software
- Stop Straining Your Portables—Refine Your Power Strategies
- Choosing the Best Type of Temperature Sensor
- How to Stop Physical Tampering of Mobile POS Systems
- Summertime Fun Outside the Classroom
- Do You Trust Your Smart Medical Device?
- 支持常电工作电子设备的高性能PMIC
- nanoMan Meets DARWIN—and Powerful Things Happen
- Consider Your WLAN Power-Supply Temperature and PCB Size Carefully
- Why on Earth Don’t You Include a Clock in Your Design?
- Reinforced Digital Isolator Ensures Safety in Industrial Environments
- CAN Bus Continues Its Grand Popularity – in Automotive, IoT, and Automation
- Who Had the Winning Project in Our MAX32620FTHR Design Contest?
- Reaching for the Golden Ring: 4 Key Elements for Industrial Convergence
- 4 Ways to Extend Runtime of Small, Battery-Powered Electronics
- How Are You Managing Thermal Requirements of Shrinking Industrial Sensors?
- Accurate, Wrist-Based Heart-Rate Monitoring—Six Months Faster
- Getting a Finger on the Pulse of Well-Being
- LED Controllers Make Headlight System Design a Snap
- Smaller, Smarter, and More Powerful ICs—It’s All at electronica 2018
- Managing Low and High LED Currents for Matrix and Pixel Lighting
- An Ideal Diode Can Be an Engineer’s Best Friend
- 新PLC开发平台支持产业融合
- 7 Key Steps to Empowering Innovation
- Empowering Secure PIN-on-Glass Payments at TRUSTECH 2018
- Engineering Intern Creates Heat-Sensing Robot with LoRa Technology
- So Many Smart Devices, So Many Security Vulnerabilities
- Why Embedded Systems Designers Should Care About OpenSSL
- CES 2019 Preview
- Secure Authenticators Protect Artificial Pancreas
- A Simple Way to Increase Factory Uptime
- Simpler, More Efficient Secure Companion ICs for the IoT
- Secure Provisioning Platform Makes It Easier to Protect IoT Designs
- University Students Gain Industry 4.0 Experience with Smart Factory Demo
- Want Traffic Updates from Your Toilet?
- 如何延长电池供电设备的运行时间呢?方法如下
- Why Embedded Systems Designers Should Care About OpenSSL
- 5 Cool Gadgets that Engineers Might Want to Unwrap
- An Insider's View of Analog Artistry at electronica 2018
- One Way to Replace Power Rail Clusters in Small Electronic Devices
- Engineers Had Better Be Careful with Algorithms and AI
- Makers Make the Most of Analog ICs
- Get Inspired to Think Big and Design Small
- How LED Backlight Drivers Enable Bigger, Higher Resolution Automotive Displays
- How IoT Sensors Help Ensure Freshness and Quality of Perishables
- Fish Tanks Don’t Need Security—Unless They’re Part of the IoT
- How Manufacturing Systems Can Evolve to Enable the Industrial IoT
- 致力于打造更智能、更可持续的未来
- Squeeze More Out of Your Portable Electronics
- Cook Up Something Yummy for Pi Day
- Happy Birthday, James Kirk
- Using Optical Sensors to Detect Particles
- You Be the Judge of Creative Student Inventors
- Maxim Is Going to the Dogs in 2020
- 轻松实现您的USB-C设计
- 适用于IIOT设计的微型、高能效IO-LINK收发器
- How Ceramic Voltage References Enhance Long-Term Drift Performance
- What’s Needed to Implement Today’s Industrial IoT Architecture
- How Security Supervisors Safeguard IoT Devices
- On-Demand Webinar: Your FPGA Design Starts with the Right Power Supply
- Tips for Choosing Precise, Power-Efficient GNSS Receivers for Location-Based Applications
- Digital Instrument Clusters: Why Functional Safety is Important
- Channel Your Engineering Ingenuity for Star Wars Day
- How Will the Industrial IoT Architecture Evolve
- New Power Management Design Guides for Smart Buildings and Smart Factories
- Get Better Performance from Your ADAS Camera Systems
- How to Save Time and Space with Power Supply Designs
- Reference Designs: Designed, Built, and Tested—So You Won’t Have To
- Understand How Physically Unclonable Function Technology Can Benefit Your Design
- Meet Vehicle Emissions Standards with Supervisory and Watchdog-Timer ICs
- How to Derive More System Efficiency from Battery-Powered Designs
- 更高吞吐率、更低成本的半导体测试方案
- Want to Protect Your USB Port Without Slowing It Down?
- Sensors Expo: See Wearable Healthcare Technologies in Action
- 4 Reasons to Register for a Free Design Startup Pack
- How to Efficiently Power Tiny Industrial Sensors
- Don’t Go Breaking Your Heart to Add ECG to Your Wearable
- What You Need to Know About Battery Management Challenges
- System Loads Are No Match for This Current-Sense Amplifier
- Power Conversion Efficiency for Portable Designs
- Why Authenticators SHOULD be THE Key to Your Smart Lock
- Can Wearables Get People Off the Couch
- How Dynamic Voltage Scaling Saves Power in Wearables
- Can Wearables Reduce Healthcare Costs?
- How to Get Louder, Richer Sound from Micro Speakers
- When Is a Digital Output Not Just a Digital Output? When It’s Also a Digital Input!
- 3 Reasons to Use a Discrete Real-Time Clock in Your Wearable Design
- How Secure Authenticators Prevent Counterfeiting of Medical Disposables
- How to Minimize Power in Clocking Applications
- Are Sensor Clones Stealing Away Your Customers?
- Maxim Summer Interns Showcase Their Technical Talents
- What’s Driving Industry 4.0?
- Breakout Boards Give You a Head Start on Your Design
- RS-485 Just Got a Major Stamina Boost!
- Why Shrinking Sizes of RTCs Is Good News for Your Portable Designs
- The Ins and Outs of Voltage Supervisor ICs
- See If You Can Steal These Keys
- How Power Management ICs Support Smart Buildings
- How Analog ICs Fuel Wireless IoT Sensors
- Drive HB LEDs to Brighter Heights for Automotive Applications and More
- nanoPower Technology Translates into Happy Users
- Smartphone for Seniors Gets Smarter with Health Monitoring
- 为无线Android耳机提供高精度电池SoC数据
- Are Your Car Battery Packs in Danger of Failing?
- How an Old Digital Dog Can Learn New Analog Tricks
- CCCamp Badge is More than an Entry Ticket – It’s a Sensor-Rich Reference Design
- 5 Ways a MyMaximAir Guitar Gets Real with These Electronic Instruments Account Enhances Productivity
- Stress Your Power Supply, Not Yourself
- How to Drive Micro Speakers to Their Maximum Power Rating
- How to Get Accurate In-Ear Heart-Rate and SpO2 Monitoring
- Scare Up Some Electronic Tricks and Treats This Halloween
- How Wearables Can Become a More Integral Part of Healthcare
- Why Long Battery Life is the Lifeblood of Thread IoT Sensors
- Keep Perishables Safe with Reliable Temperature Monitoring
- Ask Michael: How Do I Make My High-Current Sensor IO-Link Compatible?
- PUI Audio Delivers Clean, Clear Sound from Tiny Speakers
- How Analog ICs Support Seismic Signal Detection
- Reference Designs with ECAD Files Mean Faster Circuit Design
- How GSEE-TECH Cut 6 Months from Analog Input Module Development Cycle
- 3 Ways an Integrated Bio-algorithm Sensor Hub Simplifies Wearable Designs
- Intelligent Buildings Get Smarter and Smarter
- Why New ICs Are Needed to Bring Intelligence to the Edge
- Learn How You Can Design a Power Supply in 5 Minutes
- Ask Michael: Swipe Right for the Isolated Gate Driver That’s a Perfect Match for GaN/SiC Switches
- Experience Wireless Battery Management at CES 2020
- Can Wearables Help Prevent the Silent Killer?
- Holiday Gift-Giving Guide: 5 Hot Tech Gadgets for Engineers
- Simplify System Power Design for Your Automotive Displays
- Add Diode ORing Without Losing Efficiency
- Function-Rich Diving Computer Fueled by Analog and Power Management ICs
- Getting to Reliable Sensor Data: Interaction Between Electronics, Optics, and Mechanical Design
- Calterah Semiconductor Delivers High-Performance, Power-Efficient mmWave Radar Tech
- Your Guide to the Advantages of Pack-Side Fuel Gauging
- How to Extend the Life of Your Smart Factory’s Wireless Beacons
- Power Up Internal Circuits While Simplifying Diagnostics for Signal Monitoring Applications
- Digital Input Design
- 抢占电动滑板车、电动自行车及其他位置跟踪IoT的电源设计挑战先机
- Future of Industrial Automation Demos at Embedded World
- How to Create Accurate Performance-Tracking Sports Wearables
- Quickly Simulate DC-DC Converters with SIMPLIS-Based Tool
- Guide to LiDAR Sensors for Self-Driving Cars
- Analog PAM4 Chipset in Hyperscale Data Centers
- Are Biometric Sensors the Key to Healthier Horses…and Humans?
- Is Pulse Transit Time Needed for Accurate Blood-Pressure Monitoring from Wearables?
- Need to Design Small, Reliable Earbuds in a Hurry? Sometimes It Pays to Play It Cool…
- MediaTek Taps Into GMSL SerDes Technology for Automotive Infotainment Solution
- How Analog Devices Are Enhancing LUXROBO’s IoT and Robotics Development Platform
- Say “No More” to Tedious Calculations for E Series Values
- How Secure Authentication Protects Your Automotive Designs from Counterfeiting
- How NCATEST Raised Performance and Lowered Power of Its Automated Test Equipment
- Ensuring Employee Safety During an Unprecedented Time
- How LiDAR Delivers Critical Distance-Sensing for Self-Driving Cars
- Why Does It Take a Pandemic to Realize the Value of Remote Patient Monitoring?
- What’s in Photoplethysmography Data? A Look at the Interaction Between Sensor Performance and Algorithms
- Charging Your Car’s Battery – in 1898
- Prioritizing Customer Focus to Save Lives
- How Capacitors Provide a Window into the Real Value of a Battery
- What’s All the Fuss About Cryptography?
谁是WiFi设备的背后英雄
2018年5月29日
![]() |
作者:Anil Telikepalli Maxim Integrated工业电源产品线执行总监 |
星期一早上,我坐在星巴克一边等咖啡,一边用iPad在Google上浏览当天的新闻。傍晚时分,我和几位朋友在Santa Clara的Specialty’s Café会面,一边讨论新的商业创意,一边用Microsoft 360创建了一份OneNote共享笔记。回到家,我用Amazon Dash Button为我家的Tiger订购了宠物食品,然后和妻子、孩子在硅谷的Dish Dash简单地吃了晚餐。在我妻子开车回家的路上,我和孩子们玩了一局DreamLeague足球游戏 ——以上所有这些,都需要通过连接到附近开放的WiFi路由器才能够实现,而我们身边可连接的WiFi网络数量真可谓惊人。WiFi网络的普及已经推动众多WiFi联网设备在过去几年实现了爆炸式增长 —— 每天都有数十万台的新设备涌现!
图1. 在咖啡馆等场所提供WiFi接口,使我们能够与朋友保持联系、随时随地工作,或者浏览最近的新闻
而我今天想要讨论的不是像午餐盒大小的WLAN路由器,而是像Dash Button这样的电子商务配件,以及不计其数的智能家居设备,例如插头、车库门遥控器、门锁、照明调光器、联网咖啡机、宠物食物分配器等等。虽然此类小配件大多是插入式的,但也有不少需要通过纽扣电池工作。它们全部采用微小尺寸和独特的外形,例如环形、管状和圆形 —— 也就是说,它们都是需要安装在空间非常有限的电路板上的小型化电子装置。WiFi 802.11x 技术要求互连和协议处理的典型电流为200mA。在过去,这类设备的电压降较小、电流较低,功耗不成问题——1个LDO (线性调节器) 就可以搞定一切。但是随着小型化的发展,对智能化和功耗的需求也越来越高,急需新的技术来解决。
我们知道,开关式电源能够大幅提高电源转换效率,并降低功耗。但如何处理方案尺寸问题呢?对于开关调节器具备的所有优势,与线性调节器相比,占据的PCB面积要大得多,因为IC需要通过MOSFET来实现开关,通过电感储能,以及通过电阻和电容来实现控制环路的稳定性补偿。一些供应商已经开发出了将这些附加元件与IC集成在单片封装中的电源模块。但是,这些模块仍然较大,典型尺寸为47mm2。这正是Maxim推出全新喜马拉雅uSLIC模块的契机所在。MAX15462为4.5-42V宽输入范围电源模块,支持高达300mA负载电流,为系统设计者的WLAN系统提供了裕量,占位面积为2.6mm x 3mm。加上电阻分压器等支持器件后,净方案元件面积为14.3mm2。关于使用MAXM15462和MAXM17532(4-42Vin、100mA负载电流)的更多信息,请参考白皮书"满足空间受限应用的效率和功耗需求"。
图2. 超小尺寸喜马拉雅uSLIC电源模块支持4.0-42V宽输入电压范围
随着WiFi在各种智能和联网消费设备中的普及和爆炸式增长,这些设备都能够在多种常用标称电压轨下工作,系统设计者通过使用满足传导和辐射发射CISPR 22 (EN 55022) EMI标准以及JEDEC22振动/跌落标准的最小尺寸电源方案,可在竞争中立于不败之地。我期待在未来看到越来越多的WiFi联网设备出现,方便我的居家、工作以及方方面面的生活!