電源/新能源
提供權威的電源和新能源設計及電源管理資訊，內容有醫療/工業電源、LED驅動、數字電源、電池技術、太陽能光伏等電源技術方案，包括電源測試/仿真/認證、便攜電源、電動車/新能源、AC-DC與DC-DC轉換、基準/監控/保護電路等專業領域。
影響開關模式、DC-DC轉換器效率的主要因
影響開關模式、DC-DC轉換器效率的主要因 本文詳細介紹了開關電源(SMPS)中各個元器件損耗的計算和預測技術，并討論了提高開關調節器效率的相關技術和特點。 ...
2009-04-21 標簽： 1622
Power Supply Engineer's Gu
Abstract: Power MOSFETs are an integral part of any high-power-switching power supplies used in portable devices. Additionally, these MOSFETs are difficult components to specify for notebook products with minimal heat dissipation capabilit...
2009-04-21 標簽：Supplies 1169
估算涓流充電實時時鐘的超級電容備份時間
摘要：Maxim實時時鐘(RTC)系列產品包含了幾款帶涓流充電器的器件，涓流充電器可以為第二個備份電池或電容充電。電池或電容用來在VCC掉電時維持時鐘工作。儲存在電容內的能量需...
2009-04-21 標簽：電容 1608
投幣鋰電池：壽命預測中的應用-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 標簽：鋰電池 781
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 標簽：Daylight 1206
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 標簽：DS1375 1355
低電量指標是指低成本，高效率和環保-Low-Battery
Abstract: This application note presents a circuit that uses a low-power CMOS comparator to provide an LED visual indication of a low-battery condition. This LBO (low-battery-indicator) is achieved by pulsing the LED at a low frequency and...
高效DC-DC轉換器，占用面積等同于LDO
摘要：開關調節器能夠取代LDO (低壓差線性穩壓器)從3.3V輸入產生1.5V/3A輸出。與LDO 45%的效率相比，開關調節器能夠提供效率高達87%的更環保的“綠色”設計。現有的LDO設計中電路板...
2009-04-21 標簽：轉換器 982
充電電池和單機快速充電器概述
摘要：本應用筆記簡單介紹了鎳鎘(NiCd)、鎳氫(NiMH)和鋰離子(Li-Ion，Li+)可充電電池, 討論它們的性能，并說明在不需要微控制器的情況下如何構建單機結構，安全、快速地為鎳氫和鋰...
5W白光LED燈電路設計
5W白光LED燈電路設計 利用LED替代MR16鹵素燈能夠有效降低能耗，節省電路及系統維護的成本。本應用筆記詳細說明了在當前的MR16...
2009-04-21 標簽：led 4521
下一代視頻濾波放大器，延長了手持式視頻系統的電池使用時間
要：越來越多的便攜式設備，例如數碼相機、蜂窩電話和便攜式媒體播放器等，都開始逐漸增加復合視頻輸出的連接功能。這類設備中，視頻數/模轉換器(DAC)產生復合視頻信號，在...
2009-04-21 標簽：視頻 524
負電荷泵為WLED背光應用提供堪比電感電路的高效率
摘要：設計人員通常采用電荷泵或基于電感的boost電路提供白光LED (WLED)的正向導通偏置電壓。電荷泵價格較低且使用方便，但截至目前，這種架構所能提供的效率低于基于電感的boost...
2009-04-21 標簽：WLED 1040
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 標簽：Power 1265
選擇高亮度LED驅動器用于汽車照明應用
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 標簽：led驅動器 590
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 標簽： 539
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 標簽：Designing 3364
Sawtooth Generator Exhibits ~1
Abstract: Two integrated circuits (ICs) and some associated components form a voltage-controlled sawtooth generator that costs less than $3 and produces an auxiliary square wave at the same frequency. The generator is useful in a varie...
2009-04-20 標簽：Sawtooth 1331
Buffered Linear-Ramp Generator
Abstract: A precision ramp generator produces a 0 to 5V ramp while operating from a single 5V supply. Using standard circuits and no auxiliary voltage generators, such as charge pumps or inductive DC-DC converters, it is ...
2009-04-20 標簽：Linear-Ram 2207
DS1090頻率計算器
摘要：本應用筆記提供一個簡單易用的頻率計算器，用于確定適當的型號、偏置電阻以及DS1090低頻、電阻可編程、擴頻EconOscillator™的輸入設置。DS1090可提供125kHz至8MHz的擴頻、方...
2009-04-20 標簽： 566
簡化電源測試的SPST雙極性功率開關
摘要：本應用筆記介紹了一種獨立的隔離SPST (單刀/單擲)雙極性電源開關，用于產生200A、75V瞬變信號。該開關能夠用來測試電源或電源IC，用于高速電路的測試，開關的通、斷時間可...
2009-04-20 標簽： 1261
Analog Switches Operate With 3
Abstract: By adding a voltage doubler and voltage inverter, a single 3V or 5V power supply can produce the voltages necessary to improve the performance on a dual voltage analog switch. With the higher power supplies and wider range, the o...
2009-04-20 標簽：Operate 1058
Minimizing Total Harmonic Dist
Abstract: Analog switches are commonly used in audio systems to switch low-level inputs or adjust audio filter characteristics. Selecting the proper analog switch can help optimize the total harmonic distortion (THD) of a system within the...
2009-04-20 標簽：Systems 1408
Analog Switch Lowers Relay Pow
Abstract: Design idea outlining a method to use an analog switch and discrete components to reduce the power dissipated in relay actuation. Relays are often used as electrically controlled switches. Unlike transistors, th...
2009-04-20 標簽：Power 1789
Selectable-Range Current Loop
Abstract: This article shows an example of implementing a 4-20mA or 0-20mA current-loop output using a voltage output digital-to-analog converter (DAC) and a V to I converter. Current-loop signals, as opposed to voltage s...
編輯推薦廠商產品技術軟件/工具OS/語言教程專題
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| BLDC | PLC | 碳化硅 | 二極管 | OpenAI | 元宇宙 | 安森美 | ADI |
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| 直流電機 | PID | MOSFET | 傳感器 | 人工智能 | 物聯網 | NXP | 賽靈思 |
| 步進電機 | SPWM | 充電樁 | IPM | 機器視覺 | 無人機 | 三菱電機 | ST |
| 伺服電機 | SVPWM | 光伏發電 | UPS | AR | 智能電網 | 國民技術 | Microchip |
| 開關電源 | 步進電機 | 無線充電 | LabVIEW | EMC | PLC | OLED | 單片機 |
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| 語音識別 | 萬用表 | CPLD | 耦合 | 電路仿真 | 電容濾波 | 保護電路 | 看門狗 |
| CAN | CSI | DSI | DVI | Ethernet | HDMI | I2C | RS-485 |
| SDI | nas | DMA | HomeKit | 閾值電壓 | UART | 機器學習 | TensorFlow |
| Arduino | BeagleBone | 樹莓派 | STM32 | MSP430 | EFM32 | ARM mbed | EDA |
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| C++ | Java | Python | JavaScript | node.js | RISC-V | verilog | Tensorflow |
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