VDSP++ code for talkthrough program modified to act as a transmitter.
標(biāo)簽： talkthrough transmitter modified program
上傳時(shí)間： 2014-08-16
上傳用戶：zhenyushaw
Modified Julian date conversion.
標(biāo)簽： conversion Modified Julian date
上傳時(shí)間： 2013-12-09
上傳用戶：66666
單片機(jī)專輯 258冊 4.20G單片機(jī)應(yīng)用編程技巧(FAQ) 15頁 0.2M.pdf
標(biāo)簽：
上傳時(shí)間： 2014-05-05
上傳用戶：時(shí)代將軍
TwinCAT 3 FAQ集V1.0文件供大家下載查閱
標(biāo)簽： TwinCAT
上傳時(shí)間： 2022-05-12
上傳用戶：得之我幸78
·H.264 RTSP 串流 (live 555) 視窗版本 (THE Makefile had modified for VC 2008 BUILD)
上傳時(shí)間： 2013-04-24
上傳用戶：asddsd
OPTOELECTRONICS CIRCUIT COLLECTION AVALANCHE PHOTODIODE BIAS SUPPLY 1Provides an output voltage of 0V to +80V for reverse biasingan avalanche photodiode to control its gain. This circuit canalso be reconfigured to supply a 0V to –80V output.LINEAR TEC DRIVER–1This is a bridge-tied load (BTL) linear amplifier for drivinga thermoelectric cooler (TEC). It operates on a single +5Vsupply and can drive ±2A into a common TEC.LINEAR TEC DRIVER–2This is very similar to DRIVER–1 but its power output stagewas modified to operate from a single +3.3V supply in orderto increase its efficiency. Driving this amplifier from astandard +2.5V referenced signal causes the output transistorsto have unequal power dissipation.LINEAR TEC DRIVER–3This BTL TEC driver power output stage achieves very highefficiency by swinging very close to its supply rails, ±2.5V.This driver can also drive ±2A into a common TEC. Operationis shown with the power output stage operating on±1.5V supplies. Under these conditions, this linear amplifiercan achieve very high efficiency. Application ReportThe following collection of analog circuits may be useful in electro-optics applications such as optical networkingsystems. This page summarizes their salient characteristics.
標(biāo)簽： 光電轉(zhuǎn)換 電路設(shè)計(jì)
上傳時(shí)間： 2013-10-27
上傳用戶：落花無痕
Integrated EMI/Thermal Design forSwitching Power SuppliesWei ZhangThesis submitted to the Faculty of theVirginia Polytechnic Institute and State Universityin partial fulfillment of the requirements for the degree of Integrated EMI/Thermal Design forSwitching Power SuppliesWei Zhang(ABSTRACT)This work presents the modeling and analysis of EMI and thermal performancefor switch power supply by using the CAD tools. The methodology and design guidelinesare developed.By using a boost PFC circuit as an example, an equivalent circuit model is builtfor EMI noise prediction and analysis. The parasitic elements of circuit layout andcomponents are extracted analytically or by using CAD tools. Based on the model, circuitlayout and magnetic component design are modified to minimize circuit EMI. EMI filtercan be designed at an early stage without prototype implementation.In the second part, thermal analyses are conducted for the circuit by using thesoftware Flotherm, which includes the mechanism of conduction, convection andradiation. Thermal models are built for the components. Thermal performance of thecircuit and the temperature profile of components are predicted. Improved thermalmanagement and winding arrangement are investigated to reduce temperature.In the third part, several circuit layouts and inductor design examples are checkedfrom both the EMI and thermal point of view. Insightful information is obtained.
標(biāo)簽： EMI 開關(guān)電源 英文
上傳時(shí)間： 2013-11-10
上傳用戶：1595690
精確度0.05%滿刻度±1位數(shù)（Accuracy 0.05%F.S.±1digit） 可測量交直流電流/交直流電壓/電位計(jì)/傳送器/Pt-100/荷重元/電阻等信號（Measuring DCA/DCV/ACA/ACV/Potentiometer/Transmitter/Pt-100/Load Cell/Resistor/etc……） 顯示范圍0-19999可任意規(guī)劃（Programmable rate 0 to 1999 digit） 小數(shù)點(diǎn)可任意規(guī)劃（Decimal point can be modified） 尺寸小，穩(wěn)定性高（Dimension small & High stability）
上傳時(shí)間： 2014-01-25
上傳用戶：RQB123
1.C語言和匯編語言在開發(fā)單片機(jī)時(shí)各有哪些優(yōu)缺點(diǎn)？答：匯編語言是一種用文字助記符來表示機(jī)器指令的符號語言，是最接近機(jī)器碼的一種語言。其主要優(yōu)點(diǎn)是占用資源少、程序執(zhí)行效率高。但是不同的CPU，其匯編語言可能有所差異，所以不易移植。C語言是一種結(jié)構(gòu)化的高級語言。其優(yōu)點(diǎn)是可讀性好，移植容易，是普遍使用的一種計(jì)算機(jī)語言。缺點(diǎn)是占用資源較多，執(zhí)行效率沒有匯編高。對于目前普遍使用的RISC架構(gòu)的8bitMCU來說，其內(nèi)部ROM、RAM、STACK等資源都有限，如果使用C語言編寫，一條C語言指令編譯后，會變成很多條機(jī)器碼，很容易出現(xiàn)ROM空間不夠、堆棧溢出等問題。而且一些單片機(jī)廠家也不一定能提供C編譯器。而匯編語言，一條指令就對應(yīng)一個(gè)機(jī)器碼，每一步執(zhí)行什幺動作都很清楚，并且程序大小和堆棧調(diào)用情況都容易控制，調(diào)試起來也比較方便。所以在單片機(jī)開發(fā)中，我們還是建議采用匯編語言比較好。如果對單片機(jī)C語言有興趣，HOLTEK的單片機(jī)就有提供C編譯器，可以到HOLTEK的網(wǎng)站(www.holtek.com.cn)免費(fèi)下載使用。
標(biāo)簽： FAQ 單片機(jī)應(yīng)用 編程技巧
上傳時(shí)間： 2013-10-24
上傳用戶：qb1993225
This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Appendices have example code for the 16C662 (with comparator) and 16F877 (using the ADC). As the majority of the Digital Signal Processing is done in software, little is required in the way of external signal conditioning. Software techniques are used to model the individual elements of a DTMF Decoder IC.
標(biāo)簽： Decoding DTMF with PIC
上傳時(shí)間： 2013-11-21
上傳用戶：zhaoke2005
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