電路
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半雙工數(shù)據(jù)流向指示電路
假若在半雙工數(shù)據(jù)傳輸網(wǎng)絡(luò)中監(jiān)視串行數(shù)據(jù)，在把交織在一起的雙向字符串分離之前，必須知道數(shù)據(jù)的傳輸方向。 在這種場(chǎng)合，如果協(xié)議尚未知，或者實(shí)時(shí)檢測(cè)任何同步字符太復(fù)雜以至不可行，一種解決辦法是用硬件確定數(shù)
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用單只開關(guān)巧控多組燈的原理及制作
用一只單開關(guān)控制多組燈，不僅可以省掉很多開關(guān)，而且也給自己動(dòng)手制作增添樂趣。如附圖所示的電路。當(dāng)電源開關(guān)Ｋ第一次接通時(shí)，１＃燈立即點(diǎn)亮，由于電容器Ｃ３上電壓不能突變，光耦合器Ｇ只在開關(guān)Ｋ接通瞬間才導(dǎo)通
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電池供電小夜燈電路
電池供電小夜燈電路--Battery-powered Night Lamp 1,R2___________1M 1/4W Resistors R3_____________47K 1/4W Resistor (optional: see Notes) R4____________Photo resistor (any type, optional: see Notes
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禮貌燈電路
禮貌燈電路--Courtesy Light15 seconds delayed switch-offA good idea for bedroom lamps Parts: R1____________470R 1/2W Resistor R2____________100K 1/4W Resistor R3______________1M5 1/4W Resistor
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雙線燈閃光燈電路
雙線燈閃光燈電路--Two-wire Lamp FlasherIdeal to operate 3 to 24V DC existing on-circuit lampsLED operation is also possible Parts: R1______________6K8 1/4W Resistor R2____________270K 1/4W Resist
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自行車回安全光柵電路
自行車回安全光柵電路-Bicycle back Safety LightFlashing 13 LED unit, 3V supplyAlso suitable for jogger/walkersParts: R1_____________10K 1/4W Resistor R2,R9,R10_____100K 1/4W Resistors R3-R8,R11-R
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220V發(fā)光燈電路
220V發(fā)光燈電路--220 Volts Flashing LampsEspecially designed for Christmas tree lampsReplaces old thermally-activated switchesParts: R1___________100K 1/4W Resistor R2,R5__________1K 1/4W Resistor
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圓頂燈調(diào)光器電路與LED或閃光燈電路
圓頂燈調(diào)光器電路--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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簡(jiǎn)單伺服測(cè)試儀電路
簡(jiǎn)單伺服測(cè)試儀電路--Simple Servo Testerclick here to download schematic in pdfThis is a simple servo tester which will comprehensively test the capabilities of almost any modern servo. It has two push
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可調(diào)頻閃燈電路
可調(diào)頻閃燈電路--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
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擊落模型定位器電路
擊落模型定位器電路 (Downed Model Locator II)Here is another device to help you locate your downed R/C sailplane in the bushes and weeds. Similar to the other design, this circuit plugs into a spare s
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具擴(kuò)展頻譜頻率調(diào)制的低EMI DC/DC穩(wěn)壓器電路
引言在密集排列的系統(tǒng)電路板上，開關(guān)模式DC/DC穩(wěn)壓器是流行的電壓調(diào)節(jié)方法，因?yàn)檫@種穩(wěn)壓器具有較低的熱耗散。然而，電流的快速切換、定義不完備的布局、電感器等組件的放置和選擇使組成的電路有可能成為主要的EMI(電
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具擴(kuò)展頻譜頻率調(diào)制的低EMI DC/DC穩(wěn)壓器電路
引言在密集排列的系統(tǒng)電路板上，開關(guān)模式DC/DC穩(wěn)壓器是流行的電壓調(diào)節(jié)方法，因?yàn)檫@種穩(wěn)壓器具有較低的熱耗散。然而，電流的快速切換、定義不完備的布局、電感器等組件的放置和選擇使組成的電路有可能成為主要的EMI(電
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發(fā)光二極管驅(qū)逐艦(霹靂游俠燈)電路
發(fā)光二極管驅(qū)逐艦(霹靂游俠燈)電路-LED Chaser (Knight Rider lights)I don't know why, but people like blinking lights. You see LED chasers everywhere, in TV shows (Knight Rider), movies, and store window
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發(fā)光二極管驅(qū)逐艦(霹靂游俠燈)電路
發(fā)光二極管驅(qū)逐艦(霹靂游俠燈)電路
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LED或燈序電路
LED或燈序電路--LEDs or Lamps SequencerParts: R1______________1K5 1/4W Resistor R2____________680R 1/4W Resistor (Optional, see text)C1_____________47΅F 25V Electrolytic CapacitorD1_________
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亮度控制小燈電路
亮度控制小燈電路--Brightness Control for small LampsSwitching operated 1.5V bulbs Portable unit, 3V battery supply Parts: P1________________470K Linear PotentiometerR1_________________10K 1/4W R
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衰落發(fā)光二極管電路
衰落發(fā)光二極管電路--Fading LEDsTwo strips of LEDs fading in a complementary manner9V Battery-operated portable unit Parts: R1,R2_______________4K7 1/4W Resistors R3_________________22K 1/4W Resi
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舞蹈發(fā)光二極管電路
舞蹈發(fā)光二極管電路--Dancing LEDsParts: R1_____________10K 1/4W Resistor R2,R3__________47K 1/4W Resistors R4______________1K 1/4W Resistor R5,R6,R7______100K 1/4W Resistors R8____________8
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電池供電小夜燈電路
電池供電小夜燈電路--Battery-powered Night Lamp 1,R2___________1M 1/4W Resistors R3_____________47K 1/4W Resistor (optional: see Notes) R4____________Photo resistor (any type, optional: see Notes
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