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电源技术  LED的电源管理

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 tod ...

https://www.eeworm.com/dl/505/23069.html

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电源技术  简单的电池电路扩展以太网供电(PoE)峰值电流

&nbsp; Power over Ethernet (PoE) is a new development thatallows for the delivery of power to Ethernet-based devicesvia standard Ethernet CAT5 cable, precluding the need forwall adapters or other external power sources. The PoEspecification defines a hardware detection protocol wherePower Sourci ...

https://www.eeworm.com/dl/505/24268.html

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电源技术  DN378 低静态电流单片式降压型稳压器

&nbsp; Automobile electronic systems place high demands ontoday&rsquo;s DC/DC converters. They must be able to preciselyregulate an output voltage in the face of wide temperatureand input voltage ranges&mdash;including load dump transientsin excess of 60V and cold crank voltage drops to 4V. Thec ...

https://www.eeworm.com/dl/505/24310.html

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电源技术  高功率PoE PD接口与集成反激式控制器

&nbsp; To this day, Power over Ethernet (PoE) continues to gainpopularity in today&rsquo;s networking world. The 12.95Wdelivered to the Powered Device (PD) input supplied bythe Power Sourcing Equipment (PSE) is a universal supply.Each PD provides its own DC/DC conversion from anominal 48V supply ...

https://www.eeworm.com/dl/505/24317.html

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电源技术  具有宽输入范围的微型单片降压型稳压器

&nbsp; Automotive batteries, industrial power supplies, distributedsupplies and wall transformers are all sources ofwide-ranging high voltage inputs. The easiest way to stepdown these sources is with a high voltage monolithicstep-down regulator that can directly accept a wide inputrange and prod ...

https://www.eeworm.com/dl/505/24320.html

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电源技术  DN428微型同步升压转换器

&nbsp; Alkaline batteries are convenient because they&rsquo;re easy tofi nd and relatively inexpensive, making them the powersource of choice for portable instruments and devicesused for outdoor recreation. Their long shelf life alsomakes them an excellent choice for emergency equipmentthat may ...

https://www.eeworm.com/dl/505/24329.html

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电源技术  GPON系统的APD偏置解决方案

&nbsp; Avalanche photo diode (APD) receiver modules arewidely used in fi ber optic communication systems. AnAPD module contains the APD and a signal conditioningamplifi er, but is not completely self contained. It stillrequires signifi cant support circuitry including a highvoltage, low noise po ...

https://www.eeworm.com/dl/505/24332.html

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电源技术  DN460双输出降压稳压器优化效率

&nbsp; The LTC3546 is a dual output current mode buck regulatorwith fl exible output current partitioning. Beyondthe advantages normally associated with dual outputregulators (reduced size, cost, EMI and part count, withimproved effi ciency), the LTC3546&rsquo;s outputs can bepartitioned for eit ...

https://www.eeworm.com/dl/505/24336.html

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电源技术  离线式LED照明简述

&nbsp; As environmental concerns over traditional lighting increaseand the price of LEDs decreases, high power LEDsare fast becoming a popular lighting solution for offl ineapplications. In order to meet the requirements of offl inelighting&mdash;such as high power factor, high effi ciency, isol ...

https://www.eeworm.com/dl/505/24343.html

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电源技术  利用高压看门狗定时器加强汽车安全系统

&nbsp; Abstract: As electronic systems take over many of the mechanical functions in a car&mdash;ranging from engine timing to steering andbraking&mdash;there is a growing concern about fault tolerance. There should not be a single point of failure that would prevent a car fromat least "limping" ...

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