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    2,000 dc to dc 份搜到的工作,货币单位为 HKD

    我有路由器上下壳需要设计: 1.尺寸是250X160X50mm; 2.接口包括5个以太网口,3个USB A type,一个DC插座,一个复位按钮; 3.顶部中央有圆形LED指示,直径50mm; 4.带两个扬声器,开口朝下; 内部PCB 参考附件。 要求: 设计简洁有几何艺术感,文件格式SKP

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    WOOPEHN抗老化护肤硅胶电动洁肤仪,适合所有肤质,深度温和清洁,防水,携带方便,USB充电(粉红色) WOOPHEN硅胶电动清洁仪具有4级可调振动强度和3种大小不同的刷毛,刷毛十分柔软,,可深度清洁,适用于所有皮肤类型。 采用高频振动技术疏通毛孔,清除痘痘,最终改善肌肤。特别的舒缓按摩模式,使得面部细胞更新,去除皱纹,防止皮肤松弛,延缓衰老,恢复肌肤活力! 通过光滑的硅胶接触引入高频振动波,以帮助清除毛孔中的污垢和油脂以及化妆品残留物,清理坏死性角质,建议清洁脸部的不同区域约15秒钟。 WOOPHEN硅胶洁面仪具有超长的电池使用时间,小巧精致,携带方便,可放在化妆袋中,完全防水,可在水中清洗该洁面仪 本产品采用优质医用硅胶,完全耐用,保修期为两年,30天内无理由退款。 颜色:粉红色 充电时间:少于120分钟 使用时间:150分钟至480分钟 电源:DC 3.7V 200mA 振动频率:6000rpm 重量:50克 尺寸:9.7厘米* 6.5厘米* 3厘米 防水等级:IP88 产品优势: 防水 携带方便 电池寿命长 深沉而温和的清洁 适合所有肤质 获得健康的肤色 让你的皮肤更干净 有光泽,有弹性

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    T3核心板硬件资源基本需求 基本硬件资源 1. 电源供应 DC电源输入,5V单电源输入,CPU要能检测到这个电源是否供电; 电池输入,锂电池电源输入; 实时时钟电源,使用纽扣电池; 2. 显示接口 要支持RGB,LVDS和MIPI接口,由于同时只能使用一个接口,所以这3个接口的管脚可以复用; 3. 触摸屏接口 电阻屏接口,使用ADS7846或者兼容芯片,使用SPI接口; 电容屏接口,使用IIC接口; 4. SD卡接口 CPU要预留出SD/TF卡接口管脚; 5. 网络接口 使用RMII接口的PHY,所以RMII接口管脚也要预留出来,PHY使用DP83848IVV; 6. 串行通信接口 预留出1个RS232用的UART; 预留出1个RS485用的UART,另外还要预留1个管脚用来RS485的方向控制; 7. USB接口 预留出1个USB接口用来外接USB设备; 8. 旋转编码器接口 使用2个外部中断口来接增量型旋转编码器; 9. 蜂鸣器接口 使用一个PWM输出来控制蜂鸣器; 10. GPIO接口 至少预留出32个GPIO口用于外部设备的控制,如键盘输入,指示灯输出,三态安全开关输入,三档选择开关输入等; 基本驱动需求 1. 旋转编码器输入驱动 旋钮编码器驱动要求能判断编码器旋转方向,目前这两个GPIO口不给上层读取, 直接由驱动发送按键值,就是加入LINUX的输入事件,正向旋转发送键值59,反向旋转发送键值60,从event0读取。 2. RS485驱动 RS485需要1个方向控制脚,当向对应的UART发送接收数据时,方向脚能自动实现方向控制。 3. 蜂鸣器驱动 蜂鸣器驱动要求能设置PWM输出的频率,输出的时间,输出时间到了自动关闭PWM输出。 4. 薄膜按键驱动和USB键盘驱动 预留24个GPIO作为薄膜按键的输入,目前的驱动是作为GPIO口来读取的;最好也缴...

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    HomeCourt app 已经结束 left

    哈喽,你现在在DC么?详细项目情况请QQ联系? 654708279. 。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。必须凑够100字。。。

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    ...Spice expert to assist with the design and simulation of a half-bridge circuit to drive an ultrasonic cleaner load, 60W, 39kHz, and 10R impedance. I have an LT spice model that needs to be updated to meet the requirement. The floating side needs to show a square wave and the output to the load needs to be a sinewave. The main requirement is to update the values of the discrete component and use a much better MOSFET to meet the required output of 600V AC, 0.5A, 39kHz Responsibilities: - Improve the LT Spice model for the half-bridge circuit (no rectifier needed), Output is AC and not DC - Conduct detailed simulations to analyze performance - Optimize circuit design based on simulation results The MOSFET p...

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    ...raw sensor to removal of noise & unwanted signal Algorithm / code for Digital Filter low bandwidth Real time Sensor Signals 1. Analogue Raw data acquisition in real time at 1000 samples per second in 24 bit precision 2. Raw data signal bandwidth /frequencies restricted to less then 1000 hz by hardware RC anti aliasing filter to avoid aliasing 3. Following Digital in sequence to be applied to raw signal . a. low pass filter 0-170 hzs ( to remove high frequency random / white noise b. High pass filter 1 hz to 400 hz (to remove low frequency dur DC signal coupling ) c. Very steep(narrow band) notch filter at 50 hz / 60 hz to remove power line interference a & b can be combined as band pass filter if po...

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    As part of this project, I need assistance in performing the following tasks: - Writing VHDL code - Designing FPGA circuits, specifically for Xilinx FPGA The goal is to achieve PWM via VHDL and PS to PL UART communication in the FPGA circuit design. It would be advantageous if you have a strong background in VHDL, FPGA circuit design and specific experience with Xilinx FPGA. Additionally, understanding of PWM and UART communication would be beneficial. Estoy buscando un ingeniero FPGAs y firmware para q haga un pequeño proyecto para hacerlo correr en una tarjeta de desarrollo Pynq-Z2 con el Sw Vivado. Se trata de implementar un PWM de valor de entrada variable, esto en VHDL para cargarlo en la PL de la Zynq. Se trataría de lo siguiente; a través de...

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    AC-DC Converter Design Expert 4 天 left
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    I am seeking a skilled and experienced Switch Mode Power Supply (SMPS) design engineer. For my particular project, we will focus on AC-DC converters and should, therefore, possess specific expertise in switching regulation topology. Here's what I need: - Mastery in designing AC-DC converters utilizing switching regulation - Ability to design a converter with power output less than 100 Watts - Experience with power electronics and circuit design Your background should demonstrate relevant projects you've completed that are particularly linked to the aspects mentioned. Your strategic and innovative thinking will be highly valuable to create efficient and powerful designs.

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    I am seeking an Electronics Engineer specialized in power conversion, specifically the AC to DC conversion process (SMPS). The purpose of this project is to design and implement an AC to DC converter to serve as a power supply for an electronic device. The ideal candidate should have: - Extensive knowledge and experience in power electronics and circuit design - Proven experience in designing and troubleshooting SMPS Your responsibilities will include: - Designing a robust SMPS following given specifications - Validating the design through physical prototyping (dot board preferred) - Sharing the voltage sweep results with the proto Requirements: - Primary side: 90 VAC - 250 VAC input - Secondary side: 24 VDC (2A) and 15 VDC (3 A) (on the same tr...

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    I'm looking for an experienced graphic designer to create a double sided A4 brochure intended to promote a specific product. The target audience for this brochure is primarily from the caravan and automotive industry so it needs to stand out and look tough as it's from a male dominated industry. Key Requirements: - Experience in designing promotional materials, ideally for a similar demographic - Strong understanding of impactful product imagery to effectively promote the product - Ability to incorporate product images into brochure design seamlessly Please see the following images attached to best describe what we need: 1st page - pic of man jumping out of car first page requires BMPRO logo in the top right-hand corner (image 106)...

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    In need of an in...need of an individual who is familiar with, or capable of quickly learning, how to prepare and file an affidavit with the DC Superior Court civil division. This is for an ongoing business, so your assistance will be used for operational purposes. Key Requirements: - Knowledge or willingness to learn about the DC Superior Court Civil division filing procedures - Ability to prepare the affidavit providing evidence for a case - Familiarity with evidence presentation in a legal context - Excellent command of English and legal terminology No stringent confidentiality requirements are attached to this project. However, a basic level of professional discretion is expected. Legal background is a plus, but willing to consider i...

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    I'm looking for a proficient IoT expert who can connect a ShellyUNI wireless sensor to a Node-Red flow using Mosquitto MQTT broker. Notably, my Node-Red is already installed and functional on a Raspberry Pi4. Key Tasks: - Configure the ShellyUNI wireless sensor to accurately transmit 0 to 12 DC volts. - Set up a system that enables data transmission every minute from the sensor to the Node-Red. Skillset Required: - Excellent knowledge of IoT - Extensive experience with MQTT, specifically using Mosquitto broker - Familiarity and hands-on experience with Node-Red on Raspberry Pi - Previous work with ShellyUNI wireless sensors The ideal freelancer for this project should have hands-on knowledge of working with ShellyUNI sensors, MQTT brokers, and...

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    ...MATLAB-Simulink to assist me in simulating DC arc faults in a photovoltaic (PV) system. Key Project Details: - The primary purpose of the PV system is power generation. - I need the simulation to provide details on basic electrical parameters and arc dynamics. - I need the simulation using different arc models (Cassie, Mayr, Habedank, Kema, Paukert, Modified Paukert, and Heuristic model). - The Pv system should be connected to the grid. - The Pv system should have a dc-dc converter and inverter. The ideal freelancer for this project should have: - Strong expertise in MATLAB - Simulink - Experience with simulating electrical systems - Familiarity with photovoltaic systems would be a plus - **Fault Duration and Conditions**: The simulation shou...

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    I'm in need of an Arduino Programmer with expertise in DC motor control, programming logic, and inductive proximity sensor integration. Specific tasks include: - Programming logic for the DC motor microcontroller - Integrating an inductive proximity sensor for object detection - Implementing a speed regulation function (slow start, slow stop, foward, reverse speed and delay start) for motor control Please find the project detail on the attached document.

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    ...(, error) { // Criar janela hInstance := (nil) if hInstance == 0 { return 0, ("Failed to get module handle") } className, err := ("MyWin32Class") if err != nil { return 0, ("Failed to create window class name") } var wc = uint32(({})) = (DefWindowProc) = hInstance = (0, (win.IDC_ARROW)) = (win.COLOR_WINDOW + 1) = className if (&wc) == 0 { return 0, ("Failed to register window class") } hWnd := ( 0, className, ("Captured Image"), win

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    ..., but it needs to be updated and/or redesigned/recreated. I prefer a minimalistic, modern, timeless design and like to be closely involved in the creative process. I might also be interested in finding an expert Instagram user to consult to develop my Instagram presence. A designer local to the Washington, DC metropolitan area would be ideal but not required. While I'd like to have a quote or estimate for a finished website, I am open to paying on an hourly basis for ongoing services. Requirements: - I need a website that can serve as a portfolio showcasing my previous interior design projects. This means the website should have a beautiful and functional gallery or slider for images, possibly with before-and-after shots. - ...

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    ...the connector connected to the inlet of an electric vehicle between the locked and unlocked states. There are various types of connectors that connect to inlets. For example, there are DC charging connectors, AC charging connectors, discharge connectors, etc. At this point, you need to determine exactly what type of connector will be installed in the inlet. If the wrong connector is connected to the inlet and it becomes locked, the user may not be able to early recognize that the wrong connector is connected. Therefore, if the appropriate connector is connected to the inlet, it will be locked, and if the inappropriate connector is connected to the inlet, it will be in the unlocked state. This allows the user to know early on...

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    Crawl, extract, build and publish all Docker Hub, , GitHub, BitBucket, GitLab, Snapcraft, Flatpak, AppImages, DC++, eMule, BitTorrent and SoulSeek as deb packages (APT repository), from ISO, container images, and source code files. Also will run a web server. More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? No time limit

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    It will crawl and extract all itags from all images from Docker Hub, , AWS ECR Public Gallery, Snapcraft, Flatpak, AppImages, Bundles, BitTorrent, EDonkey2000, SoulSeek and DC++, and it will build and publish deb packages (as APT repository), and it will also run a web server. More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? No time limit

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    It will crawl and extract all itags from all images from Docker Hub, , AWS ECR Public Gallery, Snapcraft, Flatpak, AppImages, Bundles, BitTorrent, EDonkey2000, SoulSeek and DC++, and it will build and publish deb packages (as APT repository), and it will also run a web server. More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? No time limit

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    I need someone who can develop and debug test automation, with a Java/Selenium/Maven/TestNG framework, for an Intranet web application. The automator should be located in Washington, DC, USAor in a metro-accessible DMV (DC/Maryland/Virginia) location. I need someone who can work next to me physically, as I am unable to allow anyone to remotely access my laptop because the project is running on a work computer and network, which is why I need someone local. Nobody on my team or project has experience with automation, and I'm having trouble with several framework design difficulties and test execution issues, which is why I need help. Outline of requirements: - Proficiency in Java programming language, Selenium, and TestNG - Be located in a metro-acce...

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    Smart Plug PCB Design 已经结束 left

    I need a PCB for controlling the residential electric current (220VAC) using the following componenets: - ESP32 as microcontroller -1 relay 3VD/220AC as an actuator - LoRa module (SX1278) to communicate with others equipments (already developed and manufactured). - RTC module (DS3231) for getting timeStamp. - An AC/DC currrent transofrmer (220VAC/12VDC) is needed to feed the entire circuit from the same electric source we are controling. - 2 voltage regulator: 12/5VDC and 5/3.3VDC I've design several measurements devices using ESP32, LoRa , RTC to create a monitoring net. This is a first control device that will be inluded. So there are a lot of material that this work can lean on.

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    It will crawl and extract all itags from all images from Docker Hub, , AWS ECR Public Gallery, Snapcraft, Flatpak, AppImages, Bundles, BitTorrent, EDonkey2000, SoulSeek and DC++, and it will build and publish deb packages (as APT repository). It will be also run a web server. More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Experience How soon do you need your project completed? No time limit

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    I'm searching for a proficient Arduino coder, to support in integrating dc motor driver, lcd20x4 with I2c and inductive proximity sensor into my existing project. The primary goal is to control 2 dc motor simultaneously. Key requirements for this role include: * Proficiency in Arduino coding * Vast experience with sensor integration, specifically using inductive proximity sensors * micro controller

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    I am looking for an...experienced electronics designer to create a power supply circuit board. This project requires a detailed understanding of circuits and experience working with discrete components. Your responsibilities will include: - Designing a power supply circuit board that meets my specifications using discrete components. - Providing a detailed explanation of your design, so I can understand how it functions. Ideal candidates should: - Have experience designing circuit boards, specifically power supply boards. - Be proficient with discrete components. - Have the ability to explain highly technical concepts in a manner that I can understand. Looking forward to seeing your bids! its a small constant current supply for LED Light, with input 230v AC and ...

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    I'm in need of an experienced Arduino programmer, with a strong background in integrating sensors and controlling motors. Ke...experienced Arduino programmer, with a strong background in integrating sensors and controlling motors. Key project tasks: - Integrating a motion sensor with my Arduino - Managing control of a DC motor - Setting up data logging functionality - small servo motor controlling and calibration Ideal Skills: - Proficiency in Arduino programming - Prior hands-on experience with motion sensors and DC motors - Familiarity with data logging processes is a plus! If you have the right skill set, I'd love to connect and further discuss the project details. Making a simple servo motor controlling and switching between dc motor a...

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    I require a specialist to implement a sensor data logging system using Arduino/ESP32. i Required candidate who have experties in aurdino / ESP32 and rotary encoder. Necessary Skills: - Comprehensive understanding of Arduino/ESP32 - Rotary encoder It's vital that the system be designed accurately to fulfill the need for reliable data storage. An understanding of data management and the capability to create systems for future data analysis is crucial. A background in similar projects would be greatly advantageous.

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    ...inspiration to life in a unique and eye-catching way. Ideally, you have: - Deep expertise with both embroidery and patchwork - A keen eye for detail, helping you replicate my inspirational patchwork design - An understanding of polyester materials, and how to best apply your skills to them - A willingness to work with color, as these caps will be blue. Quality workmanship and time efficiency are very much appreciated. Let's make something beautiful together. Brand Name: ami’Cura by “ami’Cura" It's a combination of "Ami" (friend in French) and "Cura" (care in Latin), conveying a sense of love, respect, and cultural diversity. Scope of Concept The Folders inside of the zip file goes a follo...

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    While installing Exchange 2016 (CU4) in a new customers environment, I encountered an error. The install wizard would fail at 97% on step 6 and there were errors in the setup log file.

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    We are in need of a highly skilled Laravel expert team to continue development on existing web application! The specific Task - Requirements Document will be provided. Project will be developed by Phases(milestones). Selected team will be having opportunity to work for long term! Skills and Experience: - Extensive experience in Laravel development - Proficiency in Laravel customization and optimization - Strong understanding of Gitlab - version control !* - Strong understanding of web development principles and best practices - Ability to work on a large-scale project and deliver high-quality results - Excellent problem-solving skills and attention to detail - Database Design & Management: The ability to design and manage a highly organized, efficie...

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    ...need of an experienced electrical engineer with expertise in power systems and circuit design. I'm looking to have a flyback converter developed that can meet the following specifications: - Input Voltage: 24 V DC - Output Voltage: 3 V - Load: 5 Ω - Output Current: 1-3 Amps - Load-Voltage Variation: < ± 3% The primary objectives of this project are to achieve a high level of efficiency and to ensure the device can deliver a consistent 3V to the 5 Ω load, while also being able to handle variations within the specified range. Ideal candidates for this project should possess: - Proven experience in designing flyback converters - Proficiency in power systems and circuit design - Ability to optimize for high efficiency - Expe...

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    ...wheelchair are driven by dual DC motors and power with 24 volt battery. the dc motor and the mechanical part of the wheelchair already manufactured and tested. B- the part we need you to accomplished with industrial standers : 1- the complete schematic ,BCP and the manufacturing Gerber file . 2- the complete firmware code. information about the unit : 1-we had a joystick with driver that can help interesting candidate for reverse engineer. the dc motor does not contain any external sensors , the dc motors contains electric brake similer to any dc motor of wheelchair ,there is a close loop system using BEMF ,and current resistor to accomplish Smoothness and accuracy movement. 2- the joystick use stm32 microcontroller, curren...

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    I'm looking for a talented individual to transform my original novel into a graphic novel that embodies the aesthetic of DC Comics. Key Tasks: - Develop detailed depictions of well-known DC Comics characters - Batman, Wonder Woman, Superman, Tim Drake, Michael Holt, Vic Stone, Dr. Fate The Spectre, among others. - Be innovative and bring to life an entirely different plot, not adhering to any particular DC Comics series or storyline in terms of events. Ideal Candidate: - Proven experience in comic book or graphic novel artwork. - Familiarity with DC Comics' artistic style and character design. - Ability to deliver high-quality graphics while respecting copyright and intellectual property rights. - Exceptional creativity an...

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    I require an intricate hardware developer with technical mastery to custom design an isolated encoder signal splitter board that's compatible with Arduino micro-controller, specifically ATmega2560. Key Features: 1. Voltage Isolation: The board must feature voltage isolation to ensure safe transmissions. 2. Compatibility: It must be fully interoperable with Arduino libraries which serves as a platform for expansion and experimentation. 3. Signal Amplification: the board should not draw more current than pull-up resistors for incremental encoders connection. If required, a signal amplification needs to be implemented. Standard signal voltage is 5V DC. Main Purpose: 1. Noise Reduction: It should provide clear communication by suppressing ambient noise in t...

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    i have a bussniss that provide services for garge doors in maryland , virginia and dc . i have a base adress in maryland but i would like to be shown on google maps on all ours areas of services and still keep the guidlines of google

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    We are seeking a highly skilled PCB designer to develop a custom board featuring the RP2040 microchip to control multiple DC motors and MOSFETs, with integrated voltage regulation. This project requires expertise in high-power applications, voltage regulation, and serial communications. Project Requirements: Microcontroller: RP2040 chip to manage all operations. Power Handling: Board must handle input of 24V. Voltage Regulation: Conversion of 24V input to 12V and 5V outputs. MOSFETs: 5 MOSFETs for 24V, 7A control. 4 MOSFETs for 12V, 5A control. Communication: USB Type-C for robust serial communication. Inputs and Outputs: 2 analog inputs. 1 One Wire communication interface. Additional pins for digital input/output as required. Deliverables: Complete PC...

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    I have a medium-sized UK roof where I'm planning to install solar panels LANDSCAPE (Panel size as per attached file. My primary goal is to maximize energy production and to have a Bill Of Material. I need a professional to create a layout plan and string diagram for the installation. The adres is "Mirrorstone LE3 1 UQ (Leicester) UK" and you can find easily on google earth. Key Deliverables: - Lay out plan for the solar panel installation - String diagram showing the connection of the panels - Calculation on how many panels can fit on the roof - Determination of the required meter DC cable length Ideal Skills and Experience: - Experience in solar panel installations - Proficiency in creating layout plans and string diagrams - Understa...

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    ...JST connectors, (except the antenna of the AIS, to be decided). The original idea is starting from a existing CM4 carrier board ‘open source’, and modify it to add/remove elements, also ‘open source’. Most of the requirements can be found in any CM4 carrier board available with a public license, for exampe CMIO from raspberry pi. Description of the elements, interfaces and other requirements follows • Maximum board size 100mmx200mm aprox. • Power souce 12v, protected and converted to other DC (present in CMIO) • USB-C with mini USB conector for programming (present in CMIO) • USB 3.0 (present in CMIO) • Ethernet (present in CMIO) • CANBUS • PCIe (present in CMIO) ...

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    I'm looking for a skilled electrical engineer to design a tailor-made AC to DC converter with specific features and requirements. Key Features: - The converter needs to have voltage regulation, current limiting, and overload protection. - The input voltage range should be 200-240V, ensuring it's compatible with standard power supplies in a wide range of settings. - The desired output for this project is 24V and 4.2A. Ideal skills and experience for this job would include: - Strong background in electrical engineering, particularly in power electronics. - Previous experience in designing AC to DC converters with similar features. - Ability to ensure the design is cost-effective and reliable for long-term use.

    $702 (Avg Bid)
    $702 平均报价
    8 个竞标

    I'm aiming at developing a robot that employs basic movement controls, thereby necessitating a detailed circuit diagram backed by Arduino code. Essential aspects to consider encompass: - The robot's main purpose: Robotics - Level of complexity: Basic movement controls - Sensors involved: Pir sensor, Tilt sensor Ideally, I am searching for a freelancer who possesses have an extensive background in robotics, especially with movement controls, and a strong understanding of Arduino. Proficiency in working with Pir and Tilt sensors would be a crucial addition as well. Knowing your way around servo, stepper, and DC motor styles would be helpful, even though this particular project might not necessarily utilize them.

    $172 (Avg Bid)
    $172 平均报价
    17 个竞标

    ...measurements will be taken. Resolving these issues is leŌ to you as the designer of the system. However, remember that each design decision requires a jusƟficaƟon. 3. General idea of the soluƟon: For such a simple system, one Arduino Uno board will be sufficient. To measure both humidity and temperature, the DHT11 sensor can be used, and to display the measured values – a 16×2 LCD display (Hitachi HD44780 compaƟble). Measurements will be taken with the 1 s resoluƟon (every 1000 ms). Since temperature and humidity change slowly, such a Ɵme resoluƟon will be more than enough to faithfully reflect their current state. I assume that the system will be placed outside the window in a waterproof clear plasƟc casing (except the sensor) and powered from a ...

    $172 (Avg Bid)
    $172 平均报价
    7 个竞标

    I am currently working on a 35,000 square foot steel framed modular build new construction project in Washington DC as the Construction Owner's Rep. I am looking for a skilled esitmator who can assist with takeoff and value engineering before start of construction. your recent experience with similar projects do you collaborate with all the parties on a design/construction project? do you incorporate feedback and changes into your work?

    $78 / hr (Avg Bid)
    $78 / hr 平均报价
    9 个竞标

    ...board and it connects to PCB A with a flat cable, the size is not defined. In the PCBs there are JST HX - 2.54 or standard pin connectors, mosfets for power outputs, two A4988 modules to control 2 stepper motors and two DRV8833 modules to control 4 DC motors, there is also a 1W LED controlled by one of mosfets. The motor modules and mosfets must be equipped with jumpers to select the 5 or 12 volt power supply. Not all mosfets need to be controlled by pwm pins. All digital inputs must include a 10k ohm resistor, but with the possibility of excluding it. There are also digital and analog inputs, some modules and pins for I2C. I attach some images, they are only indicative of the position of the various connectors. In the first image, the Arduino ...

    $250 - $2087
    加封
    $250 - $2087
    21 个竞标

    ...require assistance with a DC Sweep Analysis on a circuit of intermediate complexity. Key Tasks: - Conduct a thorough DC Sweep Analysis on the circuit - Provide insights into the analysis, particularly focusing on the behavior of diodes, BJTs, and operational amplifiers Ideal Candidate: - Proven experience with Pspice 9.1, having worked on similar DC Sweep Analysis projects - Strong grasp of circuit design and analysis, particularly with intermediate-level components - Excellent communication skills to explain the insights from the analysis in a clear and concise manner Your understanding of Pspice 9.1 and experience in working with intermediate-level circuit components will be crucial in delivering the accurate and insightful DC Sweep Analysis I ne...

    $156 (Avg Bid)
    $156 平均报价
    2 个竞标

    I am seeking an Electronics Engineer specialized in power conversion, specifically the AC to DC conversion process (SMPS). The purpose of this project is to design and implement an AC to DC converter to serve as a power supply for an electronic device. The ideal candidate should have: - Extensive knowledge and experience in power electronics and circuit design - Proven experience in designing and troubleshooting SMPS Your responsibilities will include: - Designing a robust SMPS following given specifications - Validating the design through physical prototyping (dot board preferred) - Sharing the voltage sweep results with the proto Requirements: - Primary side: 90 VAC - 250 VAC input - Secondary side: 24 VDC (2A) and 15 VDC (3 A) - Should use ...

    $969 (Avg Bid)
    $969 平均报价
    4 个竞标

    I'm looking for a certified electrical engineer to create DC Fast EV Charging Station design documents. The design will be site specific and should be tailored for installation in urban areas and commercial properties, and it should have a capacity above 150 kW. We have multiple sites across the US where we need designs. Key requirements: - Design a DC Fast EV Charging Station: The project calls for a full-fledged design of a DC Fast EV Charging Station. - Adaptation for urban areas and commercial properties: The station should be optimized for city settings as well as businesses. - High capacity: The charging station must support charging above 150 kW. Ideal skills for this project include: - Experience with EV charging station design - Knowledge of u...

    $17595 (Avg Bid)
    $17595 平均报价
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    Home Network Design 已经结束 left

    ...doing a gut renovation of a 4-story townhouse in Washington, DC and I need help designing the internet connectivity throughout the house. I have some ideas of what the network might look like, but I want the guidance of an expert to make sure I don't make any mistakes. My thought is to have the electrician run ethernet cables from each floor to a central location where my modem will be located so I have a hardwired connection on each floor of the house. I would use those ethernet outlets to connect TVs that would stream content from the internet, and I'm also thinking of having a wireless access point on each floor to ensure strong wireless access throughout the house. I need help figuring out the exact equipment I should buy, and ...

    $1373 (Avg Bid)
    $1373 平均报价
    24 个竞标

    I'm in need of a talented PCB designer who can assist in creating a simple but effective PCB for a power supply. Key Responsibilities: Need a Small PCB which will contain NodeMCU, 4 Relay, AC to DC 5v. This board is for home automation project which will connect through WIFI, RF and control all home appliances. Ideal Skills: - Proven experience in PCB design. - Understanding of basic power supply principles. - Proficiency in PCB layout softwares, like Altium or Eagle. This is a straightforward project suitable for a skilled PCB designer looking to take on a quick gig.

    $148 (Avg Bid)
    $148 平均报价
    15 个竞标