This research work aims at eliminating the off-chip RF SAW filters from fre- quency division duplexed (FDD) receivers. In the first approach, a monolithic passive RF filter was constructed using on-chip capacitors and bondwire inductors. The bond- wire characteristics were studied in details and the effect of mutual inductive coupling between the bondwires on the filter performance was analyzed. Based on that, a bond- wire configuration was proposed to improve the frequency response of the filter. The filter was implemented in 0.18 μm CMOS process for WCDMA applications.
標(biāo)簽： Interference Mitigation Techniques
上傳時(shí)間： 2020-05-27
上傳用戶(hù)：shancjb
Electrostatic discharge (ESD) is one of the most prevalent threats to the reliability of electronic components. It is an event in which a finite amount of charge is trans- ferred from one object (i.e., human body) to another (i.e., microchip). This process can result in a very high current passing through the microchip within a very short period of time, and, hence, more than 35% of chip damages can be attributed to an ESD-related event. As such, designing on-chip ESD structures to protect integrated circuits against the ESD stresses is a high priority in the semiconductor industry.
標(biāo)簽： Electrostatic Protection Discharge
上傳時(shí)間： 2020-06-05
上傳用戶(hù)：shancjb
基于LabVIEW2012FPGA模式的數(shù)據(jù)采集和存儲(chǔ)系統(tǒng)摘 要：為了提高數(shù)據(jù)采集系統(tǒng)精度，減少開(kāi)發(fā)成本，提高開(kāi)發(fā)效率，基于LabVIEW虛擬儀器開(kāi)發(fā)工具研究并設(shè)計(jì)了一 種數(shù)據(jù)采集系統(tǒng)。該系統(tǒng)采用FPGA編程模式和網(wǎng)絡(luò)流技術(shù)實(shí)現(xiàn)大批量數(shù)據(jù)實(shí)時(shí)傳輸，并對(duì)數(shù)據(jù)進(jìn)行分析處理和存儲(chǔ)。系 統(tǒng)硬件采用美國(guó)NI實(shí)時(shí)控制器CRIO?9025，實(shí)現(xiàn)16路數(shù)據(jù)可靠采集與存儲(chǔ)。實(shí)驗(yàn)仿真及實(shí)際運(yùn)行結(jié)果表明該數(shù)據(jù)采集系 統(tǒng)能夠精確地對(duì)數(shù)據(jù)進(jìn)行實(shí)時(shí)采集以及分析處理，達(dá)到了項(xiàng)目要求。 關(guān)鍵詞：FPGA；FIFO；網(wǎng)絡(luò)流；數(shù)據(jù)采集系統(tǒng)；SQL數(shù)據(jù)庫(kù) 中圖分類(lèi)號(hào)：TN98?34 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1004?373X（2014）14?0142?04 Data acquisition and storage system based on LabVIEW 2012FPGA pattern WANG Shu?dong1,2 ，WEI Kong?zhen1 ，LI Xiao?pei1 （1. College of Electrical and Information Engineering，Lanzhou University of Technology，Lanzhou 730050，China； 2. Gansu Key Laboratory for Advanced Industrial Process Control，Lanzhou 730050，China）
標(biāo)簽： labview fpga 數(shù)據(jù)采集
上傳時(shí)間： 2022-02-18
上傳用戶(hù)：
Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM) Display Resolution: 240*RGB (H) *320(V) Frame Memory Size: 240 x 320 x 18-bit = 1,382,400 bits LCD Driver Output Circuits- Source Outputs: 240 RGB Channels- Gate Outputs: 320 Channels- Common Electrode Output Display Colors (Color Mode)- Full Color: 262K, RGB=(666) max., Idle Mode Off- Color Reduce: 8-color, RGB=(111), Idle Mode On Programmable Pixel Color Format (Color Depth) for Various Display Data input Format- 12-bit/pixel: RGB=(444)- 16-bit/pixel: RGB=(565)- 18-bit/pixel: RGB=(666) MCU Interface- Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)- 6/16/18 RGB Interface(VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])- Serial Peripheral Interface(SPI Interface)- VSYNC Interface
上傳時(shí)間： 2022-03-04
上傳用戶(hù)：
配電網(wǎng)中,各種配電終端的電流、電壓、有功功率及無(wú)功功率等模擬量的采集是配電網(wǎng)自動(dòng)化的重要環(huán)節(jié)。這些模擬量的采集也是各種儀器和家用電器的必要功能。因此,設(shè)計(jì)了基于嵌入式STM32F103單片機(jī)的交流電壓、交流電流及有功功率的采集系統(tǒng),通過(guò)電壓互感器TV1005M和電流互感器TA1005M分別檢測(cè)交流電壓和交流電流值;屏幕或者手機(jī)APP和WiFi模塊互聯(lián)后,可以實(shí)時(shí)顯示交流電壓、交流電流、功率及電量值;通過(guò)設(shè)定閾值功率,可以實(shí)現(xiàn)對(duì)電流的監(jiān)控和對(duì)電路的保護(hù)。In the distribution network,the collection of analog,such as current,voltage,active power,and reactive power at various distribution terminals is a very important part of distribution network automation. These analog acquisitions are also for various instruments and household appliances. Very important technology. Therefore,an AC voltage,AC current and active power acquisition system based on embedded STM32 F103 machine is designed,and AC voltage and AC current values are detected by voltage transformer TV1005 M and current Transformer TA1005 M respectively;After the screen or mobile phone APP and WiFi modules are interconnected,AC voltage,AC current,power,and power values can be displayed in real time;By setting the threshold power,the current can be monitored and the circuit can be protected.
標(biāo)簽： stm32f103 單片機(jī) 電流電壓采集
上傳時(shí)間： 2022-03-27
上傳用戶(hù)：shjgzh
設(shè)計(jì)了自動(dòng)控制系統(tǒng)綜合實(shí)驗(yàn)案例“基于LabVIEW和單片機(jī)的溫度控制系統(tǒng)設(shè)計(jì)”。實(shí)驗(yàn)系統(tǒng)硬件部分由單片機(jī)、溫度傳感器、D/A轉(zhuǎn)換模塊、調(diào)壓模塊和電烤箱組成,設(shè)計(jì)了單片機(jī)與各個(gè)模塊之間的接口電路。軟件部分采用LabVIEW軟件實(shí)現(xiàn)控制算法,并設(shè)計(jì)監(jiān)控界面實(shí)現(xiàn)參數(shù)設(shè)定、溫度數(shù)據(jù)實(shí)時(shí)監(jiān)控等功能。設(shè)計(jì)了單片機(jī)與LabVIEW軟件之間的串口通信程序,實(shí)現(xiàn)了輸入、輸出數(shù)據(jù)的傳輸。通過(guò)綜合實(shí)驗(yàn)系統(tǒng)設(shè)計(jì),使學(xué)生得到控制系統(tǒng)設(shè)計(jì)和實(shí)驗(yàn)調(diào)試等綜合能力的訓(xùn)練。A comprehensive experimental case of the automatic control system is presented,which is the design of the temperature control system based on LabVIEW and SCM.The hardware part of the experimental system is composed of the SCM,temperature sensor,D/A conversion module,voltage regulating module and electric oven.The interface circuit between the SCM and each module is designed.In the software part,LabVIEW software is used to realize the control algorithm,and the monitoring interface is designed to realize the functions of parameter setting,temperature data real-time monitoring,etc.The serial communication program between the SCM and LabVIEW software is designed to realize the transmission of input and output data.Through the design of this comprehensive experimental system,students can get the comprehensive ability training for the control system design,experiment debugging,etc.
標(biāo)簽： labview 單片機(jī) 自動(dòng)控制系統(tǒng)
上傳時(shí)間： 2022-03-27
上傳用戶(hù)：qdxqdxqdxqdx
數(shù)字示波器功能強(qiáng)大,使用方便,但是價(jià)格相對(duì)昂貴。本文以Ti的MSP430F5529為主控器,以Altera公司的EP2C5T144C8 FPGA器件為邏輯控制部件設(shè)計(jì)數(shù)字示波器。模擬信號(hào)經(jīng)程控放大、整形電路后形成方波信號(hào)送至FPGA測(cè)頻,根據(jù)頻率值選擇采用片上及片外高速AD分段采樣。FPGA控制片外AD采樣并將數(shù)據(jù)輸入到FIFO模塊中緩存,由單片機(jī)進(jìn)行頻譜分析。測(cè)試表明:簡(jiǎn)易示波器可以實(shí)現(xiàn)自動(dòng)選檔、多采樣率采樣、高精度測(cè)頻及頻譜分析等功能。Digital oscilloscope is powerful and easy to use, but also expensive. The research group designed a low-cost digital oscilloscope, the chip of MSP430F5529 of TI is chosen as the main controller and the device of EP2C5T144C8 of Altera company is used as the logic control unit. Analog signal enter the programmable amplifier circuit, shaping circuit and other pre-processing circuit. The shaped rectangular wave signal is sent to FPGA for measure the frequency. According to the frequency value to select AD on-chip or off-chip high-speed AD for sampling. FPGA controls the off-chip AD sampling and buffers AD data by FIFO module. The single chip microcomputer receives the data, and do FFT for spectrum analysis. The test shows that the simple oscilloscope can realize automatic gain selection, sampling at different sampling rates, high precision frequency measurement and spectrum analysis.
標(biāo)簽： msp430 單片機(jī) fpga 數(shù)字示波器
上傳時(shí)間： 2022-03-27
上傳用戶(hù)：
文章提出了一種基于AT89S51單片機(jī)的智能家居系統(tǒng)的設(shè)計(jì),該系統(tǒng)具有室內(nèi)煤氣以及煙霧的檢測(cè)、家庭室內(nèi)防盜等功能。文章詳細(xì)分析了系統(tǒng)的總體設(shè)計(jì),詳盡分析并設(shè)計(jì)了煤氣傳感器模塊、煙霧傳感器模塊、人體紅外感應(yīng)傳感器模塊、報(bào)警模塊等各硬件部分,并利用PROTUES軟件進(jìn)行了系統(tǒng)仿真。仿真結(jié)果證明:系統(tǒng)具有成本低、效率高、操作方便等優(yōu)點(diǎn),達(dá)到了預(yù)期設(shè)計(jì)的效果。This paper presents the design of an intelligent home system based on AT89S51 microcontroller.The system has the functions of detecting indoor gas and smoke,guarding against theft in the home,and so on.The overall design of the system is analyzed in detail.The gas sensor module,smoke sensor module,human infrared sensor module,alarm module and other hardware parts are analyzed and designed in detail,and the system simulation is carried out using PROTUES software.The simulation results show that the system has the advantages of low cost,high efficiency,convenient operation and so on,and achieves the expected design effect.
上傳時(shí)間： 2022-03-28
上傳用戶(hù)：
鋰電池BMS管理技術(shù)是移動(dòng)機(jī)器人的關(guān)鍵技術(shù),本文設(shè)計(jì)了基于bq76PL455、STM32F103的鋰電池管理系統(tǒng),實(shí)現(xiàn)了電池組電壓、電流、過(guò)壓、過(guò)流等狀態(tài)監(jiān)測(cè);系統(tǒng)配置均衡電路,電池充電過(guò)程中若出現(xiàn)電池單體電壓不平衡現(xiàn)象,會(huì)觸發(fā)均衡電路,進(jìn)而提高電池的安全性,延長(zhǎng)使用壽命。Lithium battery BMS management technology is the key technology of mobile robot.The lithium battery management system based on bq76PL455 and STM32F103 is proposed to realize the monitoring of battery pack voltage,current,overvoltage and overcurrent.The system is equipped with equalization circuit.When the battery cell voltage imbalance occurs,the equalization circuit is triggered to improve the safety and service life of the battery.
標(biāo)簽： 移動(dòng)機(jī)器人 鋰電池 bms管理系統(tǒng)
上傳時(shí)間： 2022-04-02
上傳用戶(hù)：
The GL823K integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and flash card interfaces. Its pin assignment design fits to card sockets to provide easier PCB layout. Inside the chip, it integrates 5V to 3.3V regulator, 3.3V to 1.8V regulator and power MOSFETs and it enables the function of on-chip clock source (OCCS) which means no external 12MHz XTAL is needed and that effectively reduces the total BOM cost.
上傳時(shí)間： 2022-04-27
上傳用戶(hù)：qdxqdxqdxqdx
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