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電源設計應用
選擇合適的系列電壓基準源的絕對精度電壓輸出數(shù)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： 785
選擇最佳的電壓基準源
摘要：電壓基準源簡單、穩(wěn)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： 731
模擬集成電路的低電壓系統(tǒng)-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 897
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 1193
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...
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...
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 2082
基于MODBUS通信協(xié)議的低壓交流配電柜智能監(jiān)控系統(tǒng)
基于MODBUS通信協(xié)議的低壓交流配電柜智能監(jiān)控系統(tǒng) 介紹了一種基于MODBUS協(xié)議的低壓開關柜智能監(jiān)測系統(tǒng)：以工控機為主站，帶協(xié)議接口的智能控制...
可滿載啟動的開關型轉換器
摘要：本文介紹的啟動電路由微處理器(µP)監(jiān)控電路MAX809L和電荷泵組成，用于監(jiān)視升壓轉換器的輸出電壓。高效升壓控制器MAX608用于提升輸出電壓，電荷泵電路受監(jiān)控電路MAX809L...
2009-05-04 標簽：轉換器 684
3.3V Supply Taps Power from th
Additional Information: Quick View Data Sheet for the MAX668 Samples and Literature Order Form Technical Support: PowerThe backplanes of popular multisupply buses (such as VME, VXI, an...
2009-05-04 標簽：PCI 1417
監(jiān)測集成電路監(jiān)控電池供電設備-Supervisor ICs
Abstract: To ensure correct operation, most microprocessor-based systems require supervision during power-up and power-down, and when entering or exiting shutdown or sleep mode. The supervisor may only provide a power-on reset, or it may o...
2009-05-04 標簽：集成電路 1306
Step-up Converter with LDO Bea
Abstract: A step-up converter followed by an LDO regulator offers better battery life than a classic SEPIC design when operating from one lithium-ion cell. This is demonstrated with the MAX1800 multi-channel digital camera power IC for the...
2009-05-04 標簽：ldo 3040
MAX6652監(jiān)控系統(tǒng)結合電壓監(jiān)測與溫度傳感-MAX6652
Abstract: The MAX6652 temperature sensor combines voltage and overtemperature monitoring into a single integrated circuit. This device features an 8-bit analog-to-digital converter (ADC) for monitoring four window voltages with programmabl...
2009-05-04 標簽：MAX6652 894
SLIC電源設計-SLIC Power-Supply Des
Abstract: Integrated communication systems incorporate voice service with data service. Such systems use subscriber-line interface card (SLIC) functions to maintain compatibility with legacy equipment. The voltages required in these system...
2009-05-04 標簽：SLIC 2798
高側電流檢測的測量：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...
2009-05-04 標簽：集成電路 1780
直流轉換無電感器-DC/DC Conversion with
Abstract: Charge pumps are often the best choice for powering an application requiring a combination of low power and low cost. This article discusses the integrated charge pumps available in the market today. It also explains how to calcu...
2009-05-04 標簽：Conversion 1684
升壓控制器形式負降壓穩(wěn)壓-Step-Up Controlle
Positive step-down switching regulators are common, but the complementary negative step-down function (converting a negative voltage to a smaller negative voltage) is rare by comparison. Figure 1 shows a negative step-down switchin...
2009-05-04 標簽：控制器 803
過電壓保護汽車系統(tǒng)-Overvoltage Protecti
Abstract: Vehicle electronics system components such as sensors and actuators require protection against over voltage, transient voltage and reverse voltage conditions. This application note discusses some discrete circuit protection schem...
2009-05-04 標簽：電壓 926
Reset Circuit Ensures Valid Su
Abstract: This article focuses on using an external MOSFET switch to ensure a valid system voltage is present before applying it to the load. This simple circuit uses a reset circuit and the MOSFET to provide a protection circuit during po...
模擬電路生成凡速度控制-Circuit Generates
Abstract: A linear circuit measures temperature and controls the speed of a cooling fan by generating a variable supply voltage for the fan. Fan noise is becoming a larger issue as more electronic equipment enters the off...
2009-05-04 標簽：模擬電路 988
Switching Between Battery and
Abstract: The following application note discusses a circuit that switches power sources efficiently without switching noise using the MAX6326. It discusses the advantages of using this technique over a simple diode-ord method. ...
2009-05-04 標簽：Switching 1887
小型高電壓升壓轉換器-Small High-Voltage
The biasing of avalanche photodiodes (APDs), piezoelectric transducers (PZTs), vacuum fluorescent displays (VFDs), and microelectromechanical systems (MEMS) require high-voltage power supplies. This app note presents three topologies (Figu...
2009-05-04 標簽：轉換器 2713
理想性因數(shù)補償和串聯(lián)電阻差異熱感二極管-Compensati
Abstract: When using an external thermal diode to measure temperature, the accuracy of the temperature measurement depends on the characteristics of the external diode. Two critical parameters that affect measurement accuracy are ideality ...
Convert the MAX1937/8/9 from L
To prevent excessive power dissipation during output short circuit, the MAX1937/MAX1938/MAX1939 provide a latch off feature under either short circuit or under-voltage-lockout condition. Once the output is latched off either the input or t...
2009-05-04 標簽：MAX1937 795
新增高電壓能力的MAX471/MAX472高側電流檢測放大器
Abstract: An avalanche diode and current source provide a floating power supply to allow high-side current sense amplifiers to work at up to 300V. The MAX471 and MAX472 are complete bi-directional high-side current sense ...
2009-05-04 標簽：MAX471 2559
選擇最佳的電壓基準源
摘要：電壓基準源簡單、穩(wěn)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...
2009-05-03 標簽： 691
全陶瓷電容設計的降壓/反相型3A、+/-5V電源
摘要：MAX8538雙路同步buck控制器能夠提供3A的+5V、-5V輸出。利用一個控制器作為同步整流降壓(buck)轉換，而另一個通過變壓器輸出負壓。電路支持軟啟動和軟關斷。 這里...
2009-05-03 標簽：電容 1051
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