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Plug in Electric Vehicles (PEVs) use energy storages usually in the form of
battery banks that are designed to be recharged using utility grid power. One
category of PEVs are Electric Vehicles (EVs) without an Internal-Combustion
(IC) engine where the energy stored in the battery bank is the only source of
power to DRIVE the vehicle. These are also referred to as Battery Electric Vehicles
(BEVs). The second category of PEVs, which is more commercialized than the
EVs, is the Plug in Hybrid Electric Vehicles (PHEVs) where the role of energy
storage is to supplement the power produced by the IC engine.
標簽：
Electric
Vehicles
Smart
Grids
in
上傳時間：
2020-06-07
上傳用戶：shancjb
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Radio frequency identifi cation (RFID) technology is a wireless communication
technology that enables users to uniquely identify tagged objects or people.
RFID is rapidly becoming a cost-effective technology. This is in large part
due to the efforts of Wal-Mart and the Department of Defense (DoD) to
incorporate RFID technology into their supply chains. In 2003, with the aim
of enabling pallet-level tracking of inventory, Wal-Mart issued an RFID
mandate requiring its top suppliers to begin tagging pallets and cases, with
Electronic Product Code (EPC) labels. The DoD quickly followed suit and
issued the same mandate to its top 100 suppliers. This DRIVE to incorporate
RFID technology into their supply chains is motivated by the increased ship-
ping, receiving and stocking effi ciency and the decreased costs of labor, storage,
and product loss that pallet-level visibility of inventory can offer.
標簽：
A_Guide_to_Radio_Frequency_IDenti
fication
RFID
上傳時間：
2020-06-08
上傳用戶：shancjb
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This reference design describes the design of a 3-phase AC induction
vector control DRIVE with position encoder coupled to the motor shaft. It
is based on Motorola’s DSP56F805 dedicated motor control device.
AC induction motors, which contain a cage, are very popular in variable
speed DRIVEs. They are simple, rugged, inexpensive and available at all
power ratings. Progress in the field of power electronics and
microelectronics enables the application of induction motors for
high-performance DRIVEs, where traditionally only DC motors were
applied. Thanks to sophisticated control methods, AC induction DRIVEs
offer the same control capabilities as high performance four-quadrant
DC DRIVEs.
標簽：
Reference
Designer
Manual
Phase
DRM
023
AC
上傳時間：
2020-06-10
上傳用戶：shancjb
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Wide 2.2V to 6V Input Voltage Range
? 0.20V FB adjustable LED DRIVE current
? Directly DRIVE 9 Series 1W LED at
VIN>=6V
? Fixed 800KHz Switching Frequency
? Max. 3A Switching Current Capability
? Up to 92% efficiency
? Excellent line and load regulation
? EN PIN TTL shutdown capability
? Internal Optimize Power MOSFET
標簽：
sc3633
上傳時間：
2021-11-05
上傳用戶：d1997wayne
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ABSTRACTThe flyback power stage is a popular choice for single and multiple output dc-to-dc converters at powerlevels of 150 Watts or less. Without the output inductor required in buck derived topologies, such as theforward or push-pull converter, the component count and cost are reduced. This application note will reviewthe design procedure for the power stage and control electronics of a flyback converter. In these isolatedconverters, the error signal from the secondary still needs to cross the isolation boundary to achieveregulation. By using the UC3965 Precision Reference with Low Offset Error Amplifier on the secondaryside to DRIVE an optocoupler and the UCC3809 Economy Primary Side Controller on the primary side, asimple and low cost 50 Watt isolated power supply is realized.
標簽：
隔離
上傳時間：
2021-11-24
上傳用戶：kingwide
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CH341系列編程器芯片usb轉串口Altium Designer AD原理圖庫元件庫CSV text has been written to file : 1.9 - CH341系列編程器芯片.csvLibrary Component Count : 56Name Description----------------------------------------------------------------------------------------------------CH311Q PC debug port monitorCH331T Mini USB Disk ControllerCH340G CH340H USB to TTL Serial / UART, USB to IrDACH340T USB to TTL Serial / UART, USB to IrDACH340R USB to IrDA, USB to RS232 SerialCH340S_P USB to Print Port / ParallelCH340S_S USB to TTL Serial / UART, pin compatible with CH341CH341A_S USB to TTL Serial / UART / I2C/IICCH341S_P USB to Print Port / ParallelCH341A_P USB to Print Port / ParallelCH341S_S USB to TTL Serial / UARTCH341S_X USB to EPP Parallel / SPI / I2C/IICCH341A_X USB to EPP Parallel / SPI / I2C/IICCH341T USB to TTL Serial / UART / I2C/IICCH345T USB to MidiCH352L_M PCI to 8255 mode 2 Parallel for MCU and 16C550 UART / IrDACH352L_P PCI to Print Port / Parallel and 16C550 UART / IrDACH352L_S PCI to Dual 16C550 UART, TTL Serial*2 / IrDA*1CH362L PCI Device / Slave only for RAM / Expansion ROMCH364F Member of CH364 chipsetsCH364P PCI Device / Slave Embedded Flash ROM, for Expansion ROMCH365P PCI Device / Slave, for I/O port or RAM / ROMCH372T USB Device / Slave for MCU, ParallelCH372A USB Device / Slave for MCU, ParallelCH372V USB Device / Slave for MCU, ParallelCH374S USB Host & Device / Slave for MCU, parallel / SPICH374T USB Host & Device / Slave for MCU, parallel / SPICH375S USB Host & Device / Slave for MCU, parallel / UART SerialCH375A USB Host & Device / Slave for MCU, parallel / UART SerialCH375V USB Host & Device / Slave for MCU, parallel / UART SerialCH411G FDC MFM encode and decodeCH421A Dual port bufferCH421S Dual port bufferCH423D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DRIVECH423S I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DRIVECH423D_D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DRIVECH423S_D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DRIVECH423G I2C/IIC I/O expander, 6 GPO + 5 GPIOCH432Q Dual 16C550 UART with IrDA, parallel / SPICH432T SPI Dual 16C550 UART with IrDACH450K 6 Digits / 48 LEDs DRIVE & 8x6 Keyboard, I2C/IICCH450H 6 Digits / 48 LEDs DRIVE & 8x6 Keyboard, I2C/IICCH450L 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, I2C/IICCH451L 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, 4 Wire Interface, SPICH451S 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, 4 Wire Interface, SPICH451D 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, 4 Wire Interface, SPICH452L_2 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, I2C/IICCH452L_4 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, 4 Wire Interface, SPICH452S_2 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, I2C/IICCH452S_4 8 Digits / 64 LEDs DRIVE & 8x8 Keyboard, 4 Wire Interface, SPICH453S 16 Digits / 128 LEDs DRIVE, I2C/IICCH453D 16 Digits / 128 LEDs DRIVE, I2C/IICPCI 32Bit PCI Bus, simple / short cardPCI32 32Bit PCI BusUSB USB Port
標簽：
ch341
編程芯片
usb
串口
altium designer
上傳時間：
2022-03-13
上傳用戶：
-
對某四輪獨立驅動電動汽車輪轂電機進行研究,設計一種永磁無刷直流電機控制器.以STM32F103RBT6芯片為基礎,對電機驅動電路、采樣電路和保護電路分別進行硬件設計與分析;同時,采用模塊化軟件設計方案,對該控制器的軟件系統進行升級.實驗驗證表明:所設計的電機控制器能使電機響應迅速、轉速穩定、無超調,且電動車動力輸出性能良好.A permanent magnet brushless direct current motor controller was designed by studying the hub motor of a four-wheel independent DRIVE electric vehicle.Based on STM32 F103RBT6 chip,the hardware design and analysis of motor DRIVE circuit,sampling circuit and protection circuit were carried out respectively.At the same time,modular software design scheme was adopted to upgrade the software system of the controller.Experimental results show that the designed motor controller can ensure the motor fast response,stable speed,no overshoot,and good power output performances.
標簽：
電動汽車
永磁無刷直流電機
上傳時間：
2022-03-26
上傳用戶：qingfengchizhu
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研究一種智能掃地機器人。從硬件系統控制模塊設計到主要技術調試進行了較詳細的闡述。以STM32單片機為控制核心與電機驅動、紅外線路徑識別模塊等相互協調應用。進行電路搭建和程序編寫。實現了智能掃地機器人紅外線避障和自動掃地功能,其清掃面積能達到約70%,清掃率約60%,很大程度受到自身機械機構的限制,后期將對小車的機械結構進行完善。This paper studies an intelligent sweeping robot.From the hardware system control module design to the main technical debugging are described in detail.STM32 MCU is used as the control core to coordinate with motor DRIVE and infrared path recognition module.Conduct circuit building and programming.The functions of infrared obstacle avoidance and automatic sweeping of intelligent sweeping robot are realized.Its cleaning area can reach about 70%and the cleaning rate is about 60%.Because it is limited by its own mechanical mechanism to a great extent,the mechanical structure of the car will be improved in the later stage.
標簽：
掃地機器人
上傳時間：
2022-03-26
上傳用戶：
-
在半導體制冷技術的工作性能及其優缺點研究的基礎上,設計了以單片機為核心控制元件,以TEC1-12706為執行元件的半導體制冷溫度控制系統。采用高精度分段式PID控制算法配合PWM輸出控制的方法實現溫度控制;選擇數字傳感器DS18B20為溫度檢測元件,還包含1602液晶顯示模塊、按鍵調整輸入模塊和H橋驅動模塊等。實際測試表明,該系統結構簡單易行,操作方便,工作性能優良,同時針對該系統專門設計的溫控算法,使半導體制冷器能更好地適應不同工況而充分發揮其制冷制熱工作特性。Based on the study of the performance and advantages and disadvantages of thermoelectric cooler(TEC)technology,a thermoelectric cooling temperature control system with single-chip microcomputer as the core control element and TEC1-12706 as the executive element was designed. High precision piecewise PID control algorithm combined with PWM output control method is adopted to realize temperature control. The digital sensor DS18B20 is selected as the temperature detection element. It also includes 1602 LCD module,key adjustment input module and H bridge DRIVE module. The actual test shows that the system has simple structure,convenient operation and excellent performance. Meanwhile,the temperature control algorithm specially designed for the system can make the semiconductor cooler better adapt to different working conditions and give full play to its refrigeration and heating characteristics.
標簽：
半導體
溫度控制系統
上傳時間：
2022-03-27
上傳用戶：
-
設計功率MOSFET驅動電路時需重點考慮寄生參數對電路的影響。米勒電容作為MOSFET器件的一項重要參數,在驅動電路的設計時需要重點關注。重點觀察了MOSFET的開通和關斷過程中柵極電壓、漏源極電壓和漏源極電流的變化過程,并分析了米勒電容、寄生電感等寄生參數對漏源極電壓和漏源極電流的影響。分析了柵極電壓在米勒平臺附近產生振蕩的原因,并提出了抑制措施,對功率MOSFET的驅動設計具有一定的指導意義。When designing the DRIVE circuit of power MOSFET,the influence of parasitic parameters on the circuit should be concerned.As an important parameter of MOSFET device,Miller capacitance should be considered in the design of DRIVE circuit.The variation of gate voltage,drain source voltage and drain source current during the turn-on and turn-off of MOSFET were observed.The influences of parasitic parameters such as Miller capacitance and parasitic inductance on drain source voltage and drain source current were analyzed.The reasons of gate voltage oscillation nearby Miller plateau were analyzed,and the restraining measures were put forward.This research was instructive for the DRIVE design of power MOSFET.
標簽：
mosfet
上傳時間：
2022-04-02
上傳用戶：默默
