無線網(wǎng)絡(luò)側(cè)用戶數(shù)據(jù)處理的流程 圖1-1 3GPP LTE網(wǎng)絡(luò)的用戶面協(xié)議?! D1-1是3GPP LTE網(wǎng)絡(luò)的用戶面協(xié)議棧 [1]。左邊藍(lán)色框內(nèi)是無線網(wǎng)絡(luò)側(cè)的用戶面協(xié)議棧。下行數(shù)據(jù)從核心網(wǎng)傳輸?shù)交緜?cè)后,經(jīng)過PDCP層、RLC層和MAC層
LED或燈脈沖發(fā)生器電路--LED or Lamp Pulser Astonishing effect4.5V supply Parts: R1,R2___________4K7 1/4W Resistors R3_____________22K 1/4W Resistor R4______________2M2 1/4W Resistor (See Notes)
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
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
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
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
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
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
直流電動(dòng)機(jī)可逆電路--DC Motor Reversing CircuitDescription: A DC motor reversing circuit using non latching push button switches. Relays control forward, stop and reverse action, and the motor cannot
1、光纖傳感器結(jié)構(gòu)原理 以電為基礎(chǔ)的傳統(tǒng)傳感器是一種把測(cè)量的狀態(tài)轉(zhuǎn)變?yōu)榭蓽y(cè)的電信號(hào)的裝置。它的電源、敏感元件、信號(hào)接收和處理系統(tǒng)以及信息傳輸均用金屬導(dǎo)線連接,見圖(a)。光纖傳感器則是一種把被測(cè)量的狀態(tài)轉(zhuǎn)
多臺(tái)電機(jī)獨(dú)立控制 控制要求: 為兩臺(tái)異步電動(dòng)機(jī)設(shè)計(jì)一個(gè)控制線路,其要求如下: (1)兩臺(tái)電動(dòng)機(jī)互不影響地獨(dú)立工作; (2)能同時(shí)控制兩臺(tái)電動(dòng)機(jī)的起動(dòng)與停止; (3)當(dāng)一臺(tái)電動(dòng)機(jī)發(fā)生故障時(shí),兩臺(tái)電動(dòng)
直流電動(dòng)機(jī)控制電路-DC Motor Control CircuitNotes: Here, S1 and S2 are normally open , push to close, press button switches. The diodes can be red or green and are there only to indicate direction
音量指示器--Sound Level IndicatorThis project uses an LM3915 bar-graph IC driving two sets of ten LEDs for a 30dB range. The circuit is unique because it has an additional range of 20dB provided by an
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
風(fēng)扇控制器電路-Fan controlThis is a simple circuit that will do what you want I believe. R1 15k ohm resistor NTC Thermistor- 10k ohm, sold at Radio Shack in the states. P1 10k ohm potentiometer -