12Vdc的荧光灯驱动电路-12VDC Fluorescent Lamp DriverA number of people have been unable to find the transformer needed for the Black Light project, so I looked around to see if I could find a fluoresce...

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LED或灯序电路--LEDs or Lamps SequencerParts: R1______________1K5 1/4W ResistorR2____________680R 1/4W Resistor (Optional, see text)C1_____________47΅F 25V Electrolytic CapacitorD1_____________LED...

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黑暗激活LED或灯闪光电路--Dark-activated LED or Lamp FlasherSimple photo-sensitive circuit3V battery supplyParts: R1_________________Photo resistor (any type)R2________________100K 1/2W Trimmer CermetR...

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亮度控制小灯电路--Brightness Control for small LampsSwitching operated 1.5V bulbsPortable unit, 3V battery supplyParts: P1________________470K Linear PotentiometerR1_________________10K 1/4W ResistorR...

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衰落发光二极管电路--Fading LEDsTwo strips of LEDs fading in a complementary manner9V Battery-operated portable unit Parts: R1,R2_______________4K7 1/4W ResistorsR3_________________22K 1/4W ResistorR4_...

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舞蹈发光二极管电路--Dancing LEDsParts: R1_____________10K 1/4W ResistorR2,R3__________47K 1/4W ResistorsR4______________1K 1/4W ResistorR5,R6,R7______100K 1/4W ResistorsR8____________820R 1/4W Resisto...

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红外遥控器已经广泛使用在彩电、音响系统和各种家用电器中。遥控器的控制距离一般可到6～8米，使用非常方便。因红外遥控方式用量大，所以其红外发射、接收电路均有完整的配套器件，这些器件不仅售价低而且可靠，电路...

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LED或灯脉冲发生器电路--LED or Lamp Pulser Astonishing effect4.5V supplyParts: R1,R2___________4K7 1/4W ResistorsR3_____________22K 1/4W ResistorR4______________2M2 1/4W Resistor (See Notes)R5_________...

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电池供电小夜灯电路--Battery-powered Night Lamp 1,R2___________1M 1/4W ResistorsR3_____________47K 1/4W Resistor (optional: see Notes)R4____________Photo resistor (any type, optional: see Notes)C1_____...

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礼貌灯电路--Courtesy Light15 seconds delayed switch-offA good idea for bedroom lampsParts: R1____________470R 1/2W ResistorR2____________100K 1/4W ResistorR3______________1M5 1/4W ResistorR4__________...

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双线灯闪光灯电路--Two-wire Lamp FlasherIdeal to operate 3 to 24V DC existing on-circuit lampsLED operation is also possibleParts: R1______________6K8 1/4W ResistorR2____________270K 1/4W ResistorR3___...

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自行车回安全光栅电路-Bicycle back Safety LightFlashing 13 LED unit, 3V supplyAlso suitable for jogger/walkersParts: R1_____________10K 1/4W ResistorR2,R9,R10_____100K 1/4W ResistorsR3-R8,R11-R16__10R ...

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220V发光灯电路--220 Volts Flashing LampsEspecially designed for Christmas tree lampsReplaces old thermally-activated switchesParts: R1___________100K 1/4W ResistorR2,R5__________1K 1/4W ResistorsR3,R6...

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圆顶灯调光器电路--Dome Lamp DimmerThere are times when a little light inside the car would greatly assist one of the passengers but the dome light is too bright for safe driving. The dimmer circuit in...

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可调频闪灯电路--Adjustable Strobe LightThis one uses a much more powerful "horse shoe" Xenon tube which produces more light. You can also control the flash rate up to about 20Hz. Do not look directly ...

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黑光发生器电路 Black Light This circuit is a simple ultraviolate light that can be powered by a 6 volt battery or power supply that is capable of supplying 1 or more amps.Theoritical DiagrammPARTSPart...

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本文介绍的光耦是由发光二极管和光敏三极管组合起来的器件，发光二极管是把输入边的电信号变换成相同规律变化的光，而光脉敏三极管是把光又重新变换成变化规律相同的电信号，因此，光起着媒介的作用。由于光电耦合器...

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光电耦合器——又称光耦合器或光耦，它属于较新型的电子产品，现在它广泛应用于计算机、音视频……各种控制电路中。由于光耦内部的发光二极管和光敏三极管只是把电路前后级的电压或电流变化，转化为光的变化，二者之...

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CCD（Charge Coupled Device）图像传感器（以下简称CCD）和CMOS图像传感器（CMOS Image Sensor以下简称CIS）的主要区别是由感光单元及读出电路结构不同而导致制造工艺的不同。CCD感光单元实现光电转换后，以电荷的方...

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顺应消费者对更佳用户体验和智能自动化控制的需求，光学接近式传感器已经广泛应用到具备脸部检测、手部动作和距离检测等各种技术上，例如智能手机、液晶电视显示屏、计算机和键盘背光显示、数码相机取景器、自动光度...

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液晶显示器(LCD)是现在非常普遍的显示器。它具有体积小、重量轻、省电、辐射低、易于携带等优点。液晶显示器（LCD）的原理与阴极射线管显示器（CRT）大不相同。LCD是基于液晶电光效应的显示器件。包括段显示方式的字...

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　一、激光的产生机理 　在讲激光产生机理之前，先讲一下受激辐射。在光辐射中存在三种辐射过程，　一时处于高能态的粒子在外来光的激发下向低能态跃迁，称之为自发辐射；　二是处于高能态的粒子在外来光的激发下向低...

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1998年发白光的LED开发成功。这种LED是将GaN芯片和钇铝石榴石（YAG）封装在一起做成。GaN芯片发蓝光（λp=465nm，Wd=30nm），高温烧结制成的含Ce3+的YAG荧光粉受此蓝光激发后发出黄色光发射，峰值550nm。蓝光LED基片...

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近年来，大功率LED发展较快，在结构和性能上都有较大的改进，产量上升、价格下降；还开发出单颗功率为100W的超大功率白光LED。与前几年相比较，在发光效率上有长足的进步。例如，Edison公司前几年的20W白光LED，其光...

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0 引言 人类生活已渗入到海洋的各个领域，水下军事、科研、生产、娱乐比比皆是。水下活动如此多，水下的安全监测就成为人们关心的一个热门话题。水对光有着强烈的吸收作用，水下几十米外的空间几乎是漆黑一片，因此进...

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摘要：太阳能LED照明系统的发展在很大程度上受到了散热问题的影响，将半导体制冷技术应用于太阳能LED照明系统解决系统的散热问题是一个新思路。本文在对半导体制冷技术原理分析的基础上，针对太阳能LED照明系统，采用...

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　高亮度LED发展背景　近几年，高亮度LED (HB LED)在各种照明系统中作为光源日益受到青睐，这是由于高亮度LED具有高度的可靠性，使用寿命可以达到几十甚至几万小时，比传统的白炽灯或卤素灯的使用寿命高出几个数量级...

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　HDMI（高清晰度多媒体接口，High Definition Multimedia）是基于DVI技术制定，可看作是DVI技术的强化与延伸，两者可以兼容。HDMI接口可以提供高达5Gbps的数据传输带宽，满足 1080p的分辨率，并支持所有的HDTV等标准...

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Buying a gift for someone special or a loved one can sometimes be difficult or expensive. The flashing heart is the answer. It is easy to build and even the inexperienced hobbyist should be able to bu...

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Me and a friend are both trying to build a millipede. Because of obvious reasons, the millipede is NOT going to have 1000 feet!!! Instead, it's going to have 16 pager motors as feet. It will also have...

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