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。
高可靠性系統中電流檢測的實際考慮
摘要：電流檢測最簡單的方法是依據歐姆定律：電阻兩端的壓降和流過電阻的電流成正比。本文討論了基于電阻的電流檢測在實際設計中的問題，列舉了一些典型實例，如：電流保...
2009-05-06 標簽：電流 650
用兩個單向電流檢測放大器組成一個雙向電流檢測放大器
摘要：許多電池電流監測應用中需要雙向電流檢測功能，以測量電池的充電和放電電流。本文介紹了怎樣用兩個單向電流檢測放大器，比如MAX4172和MAX4173，組成一個雙向電流檢測放大...
簡單的、輸出鎖定的過流故障檢測器，具有快速的響應時間
摘要：本文介紹了一個簡單、具有快速響應時間的過流故障檢測器，用于低壓系統的電路保護。該方案與專用的熱插拔控制器不同，專用的熱插拔控制器跳出欠壓狀態后往往具有較...
2009-05-06 標簽：檢測器 1257
帶有輸入串聯電阻的電流檢測放大器的性能
摘要：本篇應用筆記闡述了高邊電流檢測放大器的性能特性。本文論述了在放大器的檢測輸入端如何使用串聯電阻。該設計方法特別適用于需要對高壓線路上檢測電阻兩端的小信號...
2009-05-06 標簽：串聯電阻 1038
Extend Current-Sense Amplifier
Abstract: Adding a charge pump provides ±5V supply rails to the operational amplifier internal to a high-side current-sense amplifier. This modification enables that amplifier to sense currents down to 0V common-mode inputs. The circuit c...
2009-05-06 標簽：Current-Se 1590
利用0至1V模擬乘法器實現電池供電系統的精確功率管理
摘要：有些系統要求測量輸出到負載的功率，這比通過傳統的電流檢測放大器簡單測量電流更為重要。負載功率測量可以精確管理電池或交流適配器供電設備的功率。該應用筆記顯...
2009-05-06 標簽：乘法器 1698
采用簡單的穩壓電路為高邊電流監測器提供恒定電壓
摘要：在典型的光電二極管電流監測應用中，電流監測器和雪崩光電二極管(APD)之間的壓降隨溫度和電流而變化，由此改變了總增益。本應用筆記介紹了一種利用穩壓電路保持電流檢...
利用精密儀表放大器實現負壓電流檢測
摘要：ISDN、電信等系統需要一個負壓電流檢測放大器。本應用筆記介紹了一種設計負壓電流檢測放大器的方法。這種方法非常靈活，經過簡單修改即可用于不同的負壓電流檢測。本...
2009-05-06 標簽：放大器 1130
模擬乘法器提高高邊電流檢測的測量精度
摘要：將模擬乘法器和高邊電流檢測放大器相結合，能夠在筆記本電腦或其它便攜儀器中實現電池充、放電電流的測量。本文討論將模/數轉換器(ADC)的基準電壓加到模擬乘法器的一...
2009-05-06 標簽：電流 827
半導體切換開關-Semiconductor Toggle S
Abstract: A low-power circuit formed with resistors, capacitors, a pushbutton switch, and two comparators serves as a toggle switch that directly drives loads up to 40mA, providing a known state following power up, battery insertion, or sy...
電路簡單雙打輸入頻率-Simple Circuit Doub
Abstract: A simple circuit consisting of a comparator and an exclusive-OR gate is sufficient to double the frequency of a reference signal. The versatile phase-locked loop (PLL) allows multiplication of a reference freque...
2009-05-06 標簽：頻率 1549
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). ...
2009-05-06 標簽：Power 1053
閱讀隔離數字國家的電力消耗-Read Isolated Di
Abstract: A simple circuit employs a small transformer and latched comparator to sense the state of a digital line without drawing power from the line. Electronic systems must often isolate their inputs or outputs from th...
2009-05-06 標簽：電力 759
建立比較器的外部滯回電壓
摘要：長期以來, 模擬比較器的使用一直處在它的“同伴”――運算放大器的陰影之中。設計人員發表了大量針對運算放大器的應用筆記, 而關于比較器的應用筆記較少。正是由于缺...
2009-05-06 標簽：電壓 1385
微電路的正電源電流監視器-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 標簽：監視器 1056
pFET線性穩壓低壓差-pFET Linear Regula
P-channel MOSFETs (pFETs), though more expensive than pnp transistors, are free of the dissipation loss associated with base drive in a pnp circuit. pFETs also have a lower saturation voltage at light loads (Figure 1). In fact, the low RDS...
2009-05-06 標簽：pFET 1686
升壓轉換器具有較高的輕負載效率-Boost Converte
In most DC-DC converters, the normal supply currents do not allow high efficiency at low load currents. The circuit in Figure 1, however, contains micropower components that enable it to maintain 90% efficiency for load currents as low as ...
2009-05-06 標簽：轉換器 1128
EPOT應用：偏移調整的運算放大器電路-EPOT Appli
Abstract: In some electronic systems, a DC offset voltage at the inputs will contribute a significant error to the output. This is especially true in high gain configurations. An offset adjustment circuit can be added to "null" out the off...
2009-05-06 標簽：放大器 1009
EPOT應用：增益調整的運算放大器電路-EPOT Appli
Variable gain amplifiers often use a mechanical potentiometer to set the gain. An example is a volume control dial. However, when the analog signal path is digitally controlled, a digital potentiometer might be used to control gain. This a...
2009-05-06 標簽：放大器 661
選擇合適的系列電壓基準源的絕對精度電壓輸出數模轉換器設計-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...
2009-05-06 標簽： 762
手持給出系統柔性電路故障保護-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 標簽：電路 1153
選擇最佳的電壓基準源
摘要：電壓基準源簡單、穩定的基準電壓，作為電路設計的一個關鍵因素，電壓基準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源以及它們的關鍵...
2009-05-06 標簽： 698
模擬集成電路的低電壓系統-Analog ICs for Lo
Abstract: This article about low-voltage ICs discusses many types of low-voltage ICs, including voltage regulators, data converters, op amps and current monitors, comparators, microprocessor supervisors, voltage references, analog switches...
2009-05-06 標簽：集成電路 882
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...
2009-05-06 標簽：Low-Power 1181
保護電流檢測放大器反對過壓瞬變-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...
硅雙極寬帶鎖相環積木塊集成電路-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 標簽：集成電路 996
峰值采樣電路在渦流電導儀中的應用
介紹了利用單片機中斷功能，結合峰值采樣電路對渦流正弦信號進行峰值檢波的方法，該方法適用范圍廣，具有較好的實用性。? 關鍵詞：峰值采樣, 單片機, 中...
創建非線性傳遞函數與線性電位器電路-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 標簽：電位器 971
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. ...
Calculate Ratiometric Outputs
Abstract: The DS1802 is a dual audio taper-potentiometer with logarithmic resistive characteristics over the device range. Each potentiometer provides 65 wiper positions with a 1dB increment per step and device mute with at least 90dB of a...
2009-05-05 標簽：DS1802 2051
編輯推薦廠商產品技術軟件/工具OS/語言教程專題
| 電機控制 | DSP | 氮化鎵 | 功率放大器 | ChatGPT | 自動駕駛 | TI | 瑞薩電子 |
| BLDC | PLC | 碳化硅 | 二極管 | OpenAI | 元宇宙 | 安森美 | ADI |
| 無刷電機 | FOC | IGBT | 逆變器 | 文心一言 | 5G | 英飛凌 | 羅姆 |
| 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 |
| 5G | m2m | DSP | MCU | ASIC | CPU | ROM | DRAM |
| NB-IoT | LoRa | Zigbee | NFC | 藍牙 | RFID | Wi-Fi | SIGFOX |
| Type-C | USB | 以太網 | 仿真器 | RISC | RAM | 寄存器 | GPU |
| 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 |
| 示波器 | LPC | imx8 | PSoC | Altium Designer | Allegro | Mentor | Pads |
| OrCAD | Cadence | AutoCAD | 華秋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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