The PW2162 is a fully integrated, high– efficiency 2A synchronous rectified step-down converter.The PW2162 operates at high efficiency over a wide output current load range. This device offerstwo operation modes, PWM control and PFM Mode switching control, which allows a high efficiencyover the wider range of the load. The PW2162 requires a minimum number of readily availablestandard external components and is available in an 6-pin SOT23 ROHS compliant package.
標簽： pw2162
上傳時間： 2022-02-11
上傳用戶：d1997wayne
基于藥物治療在臨床治療中的重要性,分析目前服藥提醒裝置存在的不足,以STM32F103VET6單片機為控制核心,設計了一種多功能電子藥箱。該系統包括顯示模塊、語音模塊和數據存儲模塊。顯示模塊通過觸摸屏電路和LED指示燈電路,與語音模塊相配合,實現了服藥提醒及指導的功能;數據存儲模塊通過EEPROM存儲電路,能夠實現掉電時服藥信息不丟失的功能。并且為了實現電子藥箱的智能化控制,開發了手機APP,兩者之間可通過WIFI進行數據通信。經測試,該藥箱能夠有效地幫助慢性病患者按時、定量、正確服用藥物,適合在家庭中推廣使用,具有較高的應用價值和實踐意義。Based on the importance of drug therapy in clinical treatment, this paper analyzes the shortcomings of current drug reminder devices, and designs a multi-function electronic medicine box with STM32 F103 VET6 microcontroller as the control core. The system includes a display module, a voice module, and a data storage module. The display module cooperates with the voice module through the touch screen circuit and the LED indicator circuit to realize the function of reminding and guiding the medicine;the data storage module can realize the function of not losing the medication information when the power is off through the EEPROM storage circuit.After testing, the medicine box can effectively help chronic diseases patients to take drugs on time, in a quantitative and correct manner,and is suitable for popularization in the family, and has high application value and practical significance.
標簽： 電子藥箱
上傳時間： 2022-03-27
上傳用戶：
配電網中,各種配電終端的電流、電壓、有功功率及無功功率等模擬量的采集是配電網自動化的重要環節。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,設計了基于嵌入式STM32F103單片機的交流電壓、交流電流及有功功率的采集系統,通過電壓互感器TV1005M和電流互感器TA1005M分別檢測交流電壓和交流電流值;屏幕或者手機APP和WiFi模塊互聯后,可以實時顯示交流電壓、交流電流、功率及電量值;通過設定閾值功率,可以實現對電流的監控和對電路的保護。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.
上傳時間： 2022-03-27
上傳用戶：shjgzh
LED 線陣顯示裝置, 分為 LED 線性旋轉顯示主機和圖文錄入器兩部分。主機用直流電機帶動由紅綠 LED 組成的線陣旋轉, 同時線陣按照時序依次切換顯示狀態, 在固定區域利用視覺暫留效果形成 16×16 點陣, 用以顯示圖文;圖文錄入器用 HMI 觸控屏作為人機交互界面, 實現圖文錄入和回放功能。主機與圖文錄入器通過無線通信方式進行信息交互,可由圖文錄入器控制主機切換不同工作任務, 以及改變線陣顯示內容。The LED linear array display device is divided into two parts:the one is the main unit used to display content,and the other one is used to input the contents.The main unit is driven by a DC motor to rotate the linear array composed by red and green light emitting diodes.At the same time,the 16×16 dot matrix that switching the display state according to the time sequence on the main unit displays pictures and texts in the fixed area,by using the visual temporary effect.The HMI touch screen is used as human machine interface to realize the function that input and playback pictures and texts.The two parts of the device communicate with each other through wireless communication.The image and text input controller can control the main unit to switch different tasks and change the content of linear array displayed.
標簽： stc12c5a60s2 單片機 led
上傳時間： 2022-03-28
上傳用戶：jiabin
電學中的測量技術涉及范圍非常廣,電流測量在電學計量中占有非常重要的位置。如何精確地進行電流測量是精密測量的一大難題。傳統的電流檢測電路多采用運算放大芯片與片外電流檢測電路相結合的方式,電路集成度很低,需要較多的接口和資源才能完成對電路的檢測。本文把所有電路部分都集成在一塊芯片上,包括檢測電阻,運算放大器電路及模擬轉數字轉換電路,從而在電路內部可以進行電流檢測,使電路更好的集成化。前置電路使用二級共源共柵結構的運算放大器,減小溝道長度調制效應造成的電流誤差。10位SAR ADC中采用電容驅動能力強的傳輸門保證了模數轉化器的有效精度。比較器模塊采用再生鎖存器與遲滯比較器作為基礎單元組合解決精密測量的問題。本設計可以作為嵌入芯片內的一小部分而檢測芯片中的微小電流1mA~100mA,工作電壓在1.8v左右,電流檢測精度預期達到10uA的需求。The measurement technology in electricity involves a wide range,and current measurement plays a very important position in electrical measurement.How to accurately measure current is a big problem in precision measurement. The traditional current detecting circuit adopts the combination of the operational amplifier chip and theoff-chip current detecting circuit, The circuit integration is very low, and more interfaces and resources are needed tocomplete the circuit detection.This topic integrates all the circuit parts into one chip, including detection resistance, operational amplifier circuit andanalog to digital conversion circuit. Highly integrated circuit makes the external resources on the chip more intensive,so that current detection can be carried out inside the circuit, so that the circuit can be better integrated. Thefront-end circuit of this project uses two-stage cascade operational amplifier and cascade tube to reduce the currenterror caused by channel length modulation effect. In 10-bit SAR ADC, the transmission gate with strong capacitivedriving ability ensures the effective accuracy of the analog-to-digital converter. Comparator module uses regenerativelatch and hysteresis comparator as basic unit to solve the difficult problem of precision measurement. This topic can beused as a small part of the embedded chip to detect the micro-current in the chip 1 mA~100 mA, the working voltageis about 1.8v, and the current detection accuracy is expected to reach the requirement of 10 uA.
上傳時間： 2022-04-03
上傳用戶：
S32K1xx Series Reference Manual 用戶手冊--2029頁 Supports S32K116, S32K118, S32K142, S32K144, S32K146, and S32K148S32K是一款符合AEC-Q100規范、基于32位ARM Cortex-M4F和Cortex-M0+內核的MCU，適用于通用汽車和高可靠性工業應用。The S32K1xx product series further extends the highly scalable portfolio of Arm? Cortex?-M0+/M4F MCUs in the automotive industry. It builds on the legacy of the KEA series, while introducing higher memory options alongside a richer peripheral set extending capability into a variety of automotive applications. With a 2.70–5.5 V supply and focus on automotive environment robustness, the S32K product series devices are well suited to a wide range of applications in electrically harsh environments, and are optimized for cost-sensitive applications offering low pin-count options. The S32K product series offers a broad range of memory, peripherals, and package options. It shares common peripherals and pin counts, allowing developers to migrate easily within an MCU family or among the MCU families to take advantage of more memory or feature integration. This scalability allows developers to use the S32K product series as the standard for their end product platforms, maximizing hardware and software reuse and reducing time to market
標簽： S32K116 S32K118 S32K142 S32K144
上傳時間： 2022-04-16
上傳用戶：jason_vip1
說明： 液晶屏LCD12864，程序源碼，C51單片機(LCD screen LCD 12864, program source code, C51 single chip)
上傳時間： 2022-05-27
上傳用戶：zhanglei193
說明： 8051單片機12864大液晶屏proteus仿真+源碼+keil完整工程。(8051 12864 Proteus large LCD screen simulation source keil complete the project.)
上傳時間： 2022-05-27
上傳用戶：
RX-8801 SA Features built-in 32.768 kHz DTCXO, High Stability Supports l'C-Bus's high speed mode (400 kHz)Alarm interrupt function for day, date, hour, and minute settings Fixed-cycle timer interrupt function Time update interrupt function32.768 kHz output with OE function Auto correction of leap years Wide interface voltage range: 2.2 V to 5.5 V Wide time-keeping voltage range:1.8 V to 5.5 V Low current consumption: 0.84A/3V (Typ.)is an IC bus interface-compliant real-time clock which includes a 32.768 kHz DTCXO In addition to providing a calendar (year, month, date, day, hour, minute, second) function and a clock counter function, this module provides an abundance of other functions including an alarm function, fixed-cycle timer unction, time update interrupt function, and 32.768 kHz output function.The devices in this module are fabricated via a C-MOS process for low current consumption, which enables ong-term battery back-up.
上傳時間： 2022-06-17
上傳用戶：
Chapter 1：Introduction and Overview Chapter 2：Switches，Buttons，and Knob 開關按鈕Chapter 3：Clock Sources 時鐘脈沖源Chapter 4：FPGA Configuration Options 配置Chapter 5：Character LCD Screen LCD顯示屏特性Chapter 6：VGA Display Port VGA接口——接到顯示器上Chapter 7：RS-232 Serial Ports RS-232接口——接器件Chapter 8：PS/2 Mouse/Keyboard Port PS/2鼠標鍵盤接口Chapter 9：Digital to Analog Converter（DAC）D/A接口Chapter 10：Analog Capture Circuit 模擬捕獲電路Chapter 11：Intel StrataFlash Parallel NOR Flash PROM Chapter 12：SPI Serial Flash 串行外圍接口系列閃存Chapter 13：DDR SDRAM 內存Chapter 14：10/100 Ethernet Physical Layer Interface以太網物理層接口Chapter 15：Expansion Connectors 擴展接口Chapter 16：XC2C64A CoolRunner-II CPLDChapter 17：DS2432 1-Wire SHA-1 EEPROMSpartan-3E入門實驗板使設計人員能夠即時利用Spartan-3E系列的完整平臺性能。設備支持：Spartan-3E、CoolRunner-ll關鍵特性：Xilinx器件：Spartan-3E（50萬門，XC3S500E-4FG320C），CoolRunnerTM-lI與Platform Flash時鐘：50MHz晶體時鐘振蕩器存儲器：128Mbit 并行Flash，16 Mbit SPI Flash，64MByte DDR SDRAM連接器與接口：以太網10/100Phy，JTAG USB下載，兩個9管腳RS-232串行端口，PS/2類型鼠標/鍵盤端口，帶按鈕的旋轉編碼器，四個滑動開關，八個單獨的LED輸出
標簽： Spartan-3E
上傳時間： 2022-06-19
上傳用戶：kingwide
