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Voltage-output

電信、數據通信和工業電源產品

In industrial applications, high voltage power supply spikes with durations ranging from a few microseconds to hundreds of millisecondsare commonly encountered. The electronics in these systems must not only survive transient voltage spikes, but in many cases alsooperate reliably throughout the event.

標簽： 電信數據通信工業電源產品

上傳時間： 2013-11-07

上傳用戶：redmoons
LED的電源管理

A light-emitting diode (LED) is a semiconductor device that emits narrow-spectrum incoherent light when forward-biased.The color of the emitted light depends on the chemical composition of the semiconductor material used, and can benear-ultraviolet, visible or infrared. LEDs are more prevalent today than ever before, replacing traditional incandescent andfluorescent bulbs in many lighting applications. Incandescents use a heated filament, are subject to breakage and burnoutand operate at a luminous efficiency of 2% to 4%. Fluorescents are more efficient, at 7% to 12%, but require highdrive voltage and contain mercury, a toxic substance that may be eventually banned in certain countries. LEDs, however,produce light directly through electroluminescence, operate at low voltage and can deliver over 20% luminous efficiency.

標簽： LED 電源管理

上傳時間： 2013-11-07

上傳用戶：xiaoyuer
用于汽車無線電和信息娛樂系統的8V開關電源

Abstract: This application note illustrates an intermediate 8V switching power supply for an automotive radio and infotainment system.The design withstands the complete automotive input voltage range (including cold crank and load dump conditions), assuring a stable8V supply for common subsystems such as a CD driver, LCDs, and a radio module in modern infotainment systems. To avoiddisturbance in the AM and FM bands, the switching power supply runs at a fixed frequency of 2MHz, enabling an ideal solution forradio systems.

標簽： 汽車無線電信息娛樂系統開關電源

上傳時間： 2013-11-20

上傳用戶：feitian920
電源工程師-電路設計中的英雄

Abstract: We don't expect manufacturers to produce clothes that in one size that fits everyone. In thesame way, one ESD component can't solve all issues—each application has different ESD requirements.Knowing that "one size fits all" cannot apply to power design, the power designer, or the engineering"super hero," must consider all the potential disruptions to a steady flow of power and thenvarious waysto mitigate them. This tutorial describes voltage- and current-limiting devices and risetime reducers tomanage the power. It also points to free and low-cost software tools to help design lowpass filters, checkcapacitor self-resonance, and simulate circuits.

標簽： 電源工程師電路設計

上傳時間： 2013-11-18

上傳用戶：zhouxuepeng1
優化輸電線路精確測量電壓駐波比(VSWR)

Abstract: Impedance mismatches in a radio-frequency (RF) electrical transmission line cause power loss andreflected energy. Voltage standing wave ratio (VSWR) is a way to measure transmission line imperfections. Thistutorial defines VSWR and explains how it is calculated. Finally, an antenna VSWR monitoring system is shown.

標簽： VSWR 輸電線路精確測量電壓駐波比

上傳時間： 2013-10-19

上傳用戶：yuanwenjiao
隔離電源設計手冊

Abstract: This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input,±15V (±12V) output, isolated power supply. The Oceanside design includes a high-efficiency step-up controller, a36V H-bridge transformer driver for isolated supplies, a wide input range, and adjustable output low-dropout linearregulator (LDO). Test results and hardware files are included.

標簽： 隔離電源設計手冊

上傳時間： 2013-10-12

上傳用戶：jinyao
電平轉換控制功率MOSFET

Abstract: Some power architectures require the power supply sequencer (or system manager) to controldownstream power MOSFETs to allow power to flow into branch circuits. This application note explains howsystem power sequencing and level shifting can be accomplished using a low-voltage system manager

標簽： MOSFET 電平轉換控制功率

上傳時間： 2013-11-02

上傳用戶：wys0120
ASC8512-CN兩節鋰電充電芯片

兩節鋰電充電IC-ASC8512 ASC8512 為開關型兩節鋰聚合物電池充電管理芯片，非常適合于便攜式設備的充電管理應用。ASC8512 集內置功率MOSFET、高精度電壓和電流調節器、預充、充電狀態指示和充電截止等功能于一體，采用TSSOP-14、SSOP-14兩種封裝形式。ASC8512對電池充電分為三個階段：預充（Pre-charge）、恒流（CC／Constant Current）、恒壓（CV／Constant Voltage）過程，恒流充電電流通過外部電阻決定，最大充電電流為2A.ASC8512 集成電流限制、短路保護，確保充電芯片安全工作。ASC8512 集成NTC 熱敏電阻接口，可以采集、處理電池的溫度信息，保證充電電池的安全工作溫度。兩節鋰電池充電IC ASC8512特點： 1.充2節鋰離子和鋰聚合物電池 2.開關頻率達400K 3.充電電流最大可做2A 4.輸入電壓9V到18V 5.電池狀態檢測 6.恒壓充電電壓值可通過外接電阻微調 7.千分之五的充電電壓控制精度 5.防反向保護電路可防止電池電流倒灌 6.NTC 熱敏接口監測電池溫度 7.LED充電狀態指示 8.工作環境溫度范圍：-20℃～70℃ 9.TSSOP-14 應用領域：應用 ●手持設備，包括醫療手持設備 ●Portable-DVD，PDA，移動蜂窩電話及智能手機 ●上網本、平板電腦、MID ●自充電電池組

標簽： 8512 ASC CN 充電

上傳時間： 2013-11-06

上傳用戶：chfanjiang
為您的FPGA選擇合適的電源

Abstract: There are many things to consider when designing a power supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/tracking and the voltage ripple limits. This application noteexplains these and other power-supply considerations that an engineer must think through whendesigning a power supply for an FPGA.

標簽： FPGA 電源

上傳時間： 2013-11-12

上傳用戶：金苑科技
電阻式溫度隔離雙輸出傳送器

特點（FEATURES）精確度0.1%滿刻度（Accuracy 0.1%F.S.）多種輸入輸出選擇（Wide selection of input/output range）三線式接線自動補償線路阻抗效應（3 wire configuration automatically compensate line resistance effects）寬范圍交直流兩用電源設計（Wide input range for auxiliary power）尺寸小，穩定性高（Dimension small & High stability）

標簽： 電阻式溫度傳送器隔離

上傳時間： 2013-10-17

上傳用戶：Huge_Brother