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電荷泵服務(wù)的便攜式設(shè)計(jì)-Charge Pumps Shine
New-generation ICs have combined with passive-component improvements to make charge-pump voltage conversion a favored approach in many applications. In many cases, the earlier charge pumps were considered either unsuitable or acceptable on...
2009-04-29 標(biāo)簽：電荷泵 2439
Mathcad Calculates Input Capac
Abstract: Step-down buck regulators are extremely popular in a variety of portable and non-portable equipment. These buck converters are terminated with an input capacitor, CIN and an output capacitor, CO, at the output. CIN provides high-...
獲取電量計(jì)應(yīng)用中的鋰電池特性
摘要：精確的電池電量計(jì)量應(yīng)建立在對在不同工作環(huán)境和條件下的電池各種特性的充分了解的基礎(chǔ)上。要獲取這些信息，應(yīng)該在已知的條件下準(zhǔn)確測試電池的各種特性。本應(yīng)用筆記...
2009-04-29 標(biāo)簽：電量計(jì) 1256
選擇最佳的電壓基準(zhǔn)源
摘要：電壓基準(zhǔn)源簡單、穩(wěn)定的基準(zhǔn)電壓，作為電路設(shè)計(jì)的一個(gè)關(guān)鍵因素，電壓基準(zhǔn)源的選擇需要考慮多方面的問題并作出折衷。本文討論了不同類型的電壓基準(zhǔn)源以及它們的關(guān)鍵...
2009-04-29 標(biāo)簽： 776
電源內(nèi)阻：扼殺DC-DC轉(zhuǎn)換效率的元兇
摘要：DC-DC轉(zhuǎn)換器常用于采用電池供電的便攜式及其它高效系統(tǒng)，在對電源電壓進(jìn)行升壓、降壓或反相時(shí)，其效率高于95%。電源內(nèi)阻是限制效率的一個(gè)重要因素。本文描述了電源內(nèi)阻...
2009-04-29 標(biāo)簽：轉(zhuǎn)換器 948
電池的合理選擇
摘要：最終用戶是否滿意其便攜式設(shè)備的設(shè)計(jì)，很大程度上取決于電池的性能。 電池的關(guān)鍵指標(biāo)當(dāng)然是電池的使用壽命。從表面上看，這只是一個(gè)簡單的規(guī)格，但它卻涉及到了...
2009-04-29 標(biāo)簽： 670
上電復(fù)位與相關(guān)監(jiān)控功能
摘要：本文討論用于單電源或雙電源處理器的上電復(fù)位功能和門限電壓的選擇策略，另外，還探討了手動(dòng)復(fù)位、電源失效和低電壓檢測等功能。文中闡述了避免使用分立POR和處理器...
2009-04-29 標(biāo)簽：電復(fù)位 1083
電流檢測集成電路阻止過損傷-Current-Sense IC
Abstract: This application note describes the use of a current-sense amplifier to monitor the load current of a circuit supply voltage. When the current being drawn from the supply exceeds the predetermined level, an external pass transist...
2009-04-29 標(biāo)簽：集成電路 1102
Overcurrent Monitor Operates u
Abstract: Using a current-sense amplifier, a high-side MOSFET driver, and a latching voltage monitor a circuit can be easily constructed that protects from overcurrent conditions and operates at voltages as high as 26V. W...
2009-04-29 標(biāo)簽：Overcurren 829
斷路器處理電壓76V-Circuit Breaker Han
Abstract: A current-sense amplifier, comparator, external CMOS switch, and an external transistor can be used to create a circuit breaker. The simplicity of low-side current monitoring can mask the advantages of a high-si...
2009-04-29 標(biāo)簽：斷路器 1094
超載保護(hù)電路電池和電源-Overload Circuitry
Abstract: A combination of current-sense amplifier, dual-comparator and external CMOS switches can be used to prevent the damaging effects of a reversed-polarity battery or short-circuit load. The most widely used device ...
2009-04-29 標(biāo)簽：電路 1196
Snubber Circuits Suppress Volt
Abstract: The flyback dc-dc converter topology results in significant cost and space savings for multiple output power supplies with high output voltage for power levels up to 100W. Flyback topologies store and transfer energy using a tran...
2009-04-29 標(biāo)簽：Voltage 2668
高側(cè)電流檢測的測量：集成電路和原則-High-Side Cu
Abstract: This application note describes the use of current sense amplifiers, differential amplifiers and instrumentation amplifiers to measure battery charge and discharge currents in portable equipment, computer notebooks and USB access...
2009-04-29 標(biāo)簽：集成電路 1621
低電壓故障保護(hù)
摘要：本應(yīng)用筆記討論過壓保護(hù)在連接系統(tǒng)電路的開關(guān)和復(fù)用器中的必要性。MAX4711/MAX4712/MAX4713模擬開關(guān)工作在2.7V至11V，集成了故障保護(hù)功能。本文還介紹了其它幾種故障保護(hù)方案...
2009-04-29 標(biāo)簽：電壓 1557
Add Fault Protection to 4-20mA
Abstract: This circuit provides flexible fault protection for a 4-20mA current loop. In addition, it includes circuitry for recovering digital signals (such as the HART protocol) imposed on the loop. 4-20mA current loops ...
One Button Turns Microprocesso
Abstract: Combining a low-dropout (LDO) linear regulator with an OR gate produces a circuit that allows a single pushbutton to turn a microprocessor-based portable system on and off. When placing a microprocessor-based po...
2009-04-29 標(biāo)簽：Microproce 1301
電源備份開關(guān)-Power-Backup Switch
Abstract: A microprocessor-supervisor IC and two external MOSFET switches form a low-voltage backup power supply that can provide several amperes when the main supply fails. Every subsystem in an electronic product depend...
DS1870采用外接電阻時(shí)的調(diào)節(jié)范圍/分辨率
摘要：DS1870用于射頻(RF)功率放大器偏置控制，如果不接外部電阻，采用5V基準(zhǔn)，其偏置電壓范圍為3V至5V。本應(yīng)用筆記旨在展示如何利用外接電阻達(dá)到適當(dāng)?shù)姆秶头直媛??？梢岳?..
利用DS4303為LDMOS RF功率放大器提供偏置
摘要：LDMOS RF功率放大器因其極高的性價(jià)比在GSM和CDMA基站市場占據(jù)了主導(dǎo)地位。使用LDMOS放大器時(shí)，保證高性能的一個(gè)關(guān)鍵因素是補(bǔ)償柵極偏置電壓，以在溫度變化時(shí)保持恒定的靜態(tài)...
2009-04-28 標(biāo)簽：放大器 1012
數(shù)字可調(diào)電壓基準(zhǔn)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...
在便攜式應(yīng)用中數(shù)字調(diào)整的DC-DC轉(zhuǎn)換器輸出電壓
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 標(biāo)簽：轉(zhuǎn)換器 1585
利用數(shù)字電位器的調(diào)節(jié)降壓DC-DC轉(zhuǎn)換器設(shè)計(jì)-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 標(biāo)簽： 2424
利用DS1841對數(shù)電阻優(yōu)化雪崩光電二極管(APD)的偏置范
摘要：本文闡述了如何使用DS1841對數(shù)電位器調(diào)節(jié)APD偏置電路的輸出范圍。為了使調(diào)節(jié)過程更簡單，本文還提供了電子數(shù)據(jù)表。 APD偏置電路DS1841可受溫度控制的...
2009-04-28 標(biāo)簽：電阻 825
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 標(biāo)簽：Power 1062
動(dòng)圈式儀表措施低級電流-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 標(biāo)簽：電流 893
3V DAC在±10V中的應(yīng)用
摘要：大多數(shù)現(xiàn)代系統(tǒng)中的電子器件通常采用3.3V或更低的電壓供電，但有時(shí)還需提供±10V的電壓驅(qū)動(dòng)外部負(fù)載(工業(yè)應(yīng)用中非常普遍)。盡管有些數(shù)/模轉(zhuǎn)換器(DAC)能夠以±10V的擺幅驅(qū)動(dòng)...
2009-04-26 標(biāo)簽：dac 2307
低噪聲音頻電源電路-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 標(biāo)簽：音頻 985
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| BLDC | PLC | 碳化硅 | 二極管 | OpenAI | 元宇宙 | 安森美 | ADI |
| 無刷電機(jī) | FOC | IGBT | 逆變器 | 文心一言 | 5G | 英飛凌 | 羅姆 |
| 直流電機(jī) | PID | MOSFET | 傳感器 | 人工智能 | 物聯(lián)網(wǎng) | NXP | 賽靈思 |
| 步進(jìn)電機(jī) | SPWM | 充電樁 | IPM | 機(jī)器視覺 | 無人機(jī) | 三菱電機(jī) | ST |
| 伺服電機(jī) | SVPWM | 光伏發(fā)電 | UPS | AR | 智能電網(wǎng) | 國民技術(shù) | Microchip |
| 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 |
| Android | iOS | linux | RTOS | FreeRTOS | LiteOS | RT-THread | uCOS |
| DuerOS | Brillo | Windows11 | HarmonyOS |
