Battery switchover circuit 12vproiecte

Aceasta aplicatie doresc ca atunci cand telefonul atinge un anumit procentaj de incarcare al bateriei(exemplu 100%) sa intrerupa alimentarea incarcatorului, iar cand acest procentaj scade sub un anumit nivel( exemplu 25%) sa reia incarcarea, adica la anumite procentaje ale bateriei sa inchida si sa deschida un circuit(releu). Conectarea aplicatiei sa poata fii facuta prin bluetooth. Va multumesc anticipat, iar pentru mai multe detalii nu ezitati sa ma contactati.

Template Proiect LCD - simulare in Proteus Cerinte de p...care unul sa fie analogic si altul digital. exemplu senzor de umiditate analogic: 5) contine un senzor de lumina (fotorezistenta/fotodioda/modul_lumina). 6) Se va proiecta un circuit cu A.O. pentru conditionarea semnalului de la senzorul de umiditate analogic. 7) Se va face o simulare a proiectului AEMC folosind programul Proteus (senzorii vor fi emulati, acolo unde este posibil). 8) Se va realiza un circuit electronic si PCB-ul. Pe partea PCB bottom se va scrie numele studentilor din echipa. 9) Se va implementa software un ceas cu data si 1 alarma. Numarul de butoane nu este impus. Se va folosi un buzzer audio (activ sau pasiv).

I am doing a biometric lock in Arduino. I already have the necessay components: fingerprint reader, USB to TTL RS232 module, servomotor, ESP32 module and a power source of 12V. I need to do this physically so I need someone who is from Romania, preferably from Bucharest or Constanta. Thank you!

Vreau sa dezvolt un convertor DC/DC, cu 2 iesiri, una de 12V si una de 5V. Acesta trebuie sa fie controlat de catre un uC care sa poata comunica cu alte placi

Salut , am nevoie si eu de o schema de circuit si o simulare in PS Spice pentru un proiect de facultate cu titlul "Divizor de trepte de tensiune " , las atasat mai jos o posibila schema

este necesara proiectarea unui sistem de ridicare electro mecanic sau electro mecano hidraulic cu conectare doar la sistem de baterii 12v. eventual conectare partiala prin cablu la 24v furnizati de autospeciala. greutatea estimata la ridicare 6000 kg. inaltimea de ridicare aproximativ 2100mm

...telecomenzile traditionale vor functiona la fel ca inainte. Daca aveti vreo indoiala daca deschizatorul dvs. este compatibil cu Nold, nu ezitati sa ne contactati. Daca aveti deja instalat un intrerupator de perete, puteti efectua acest test simplu pentru a verifica compatibilitatea: urmati cele doua fire care vin de la butonul de deschidere la deschizator. In cazul in care se conecteaza la placa de circuit, atingeti-le impreuna pentru o clipa. Daca acest lucru va face usa deschisa, opriti-va si inchideti, atunci deschizatorul de usi de garaj accepta un buton standard, deci va fi compatibil si cu Nold Open. Cu un dispozitiv puteti lega doua porti/usi diferite aflate la cel mult 10 metri una de alta. Functionarea acestora este independenta. In pagina noastra de internet regasiti...

The numerator used will have entrance to R asynchronous. It will only use the 4000 series circuits. The clock oscillator will provide two rectangular signals with frequencies of 3Hz, 5Hz and 360kHz and a tact signal manually. Divizor fix de frecvență cu 68. Numărătorul folosit va avea intrarea R asincronă. Se vor utiliza numai circuite din seria 4000. Oscilatorul va furniza semnale dreptunghiulare cu frecvențele de 3,5 Hz, respectiv 360kHz și un semnal de tact manual.

Am nevoie pentru un site realizat in joomla de niste modificari la k2. Template-ul este unul platit dar suportul lasa de dorit. Am nevoie ca item-urile din k2 sa aiba o optiune sa setez un ribbon pe imagine care sa apara atat in item efectiv cat si in lista de afisare. Trebuie sa pot scrie sau sa atasez o imagine in coltul din dreapta sau stanga ( early booking, circuit, revelion) Atasez o poza sa va dati seama la ce ma refer.

... cu parametrii: a. action = get_offers b. username = username c. password = password Username si password sunt primiti in prealabil pe email. Metoda va intoarce toate ofertele prezente in acel moment pe site-ul nostru. Recomandam folosirea ei de maxim 2 ori pe zi, pentru a evita load-ul mare pe server. Ex raspuns (1 item): {"id":"8","type":"circuit","departure_id":"4","departure_destination_id":"0","departure_destination_title":"","departure_destination_url":"","search_id":"15866","intern":"0","search_url":"src0h513874c3ecc81","result_id":"47591","package_id":"0...

...statului. Finantele private cuprind totalitatea societatilor comerciale, bancare, de asigurari, indiferent de proprietarul capitalului. In domeniul finantelor private se constituie capitalul tuturor tipurilor de societati comerciale, regii autonome si companii nationale. Caracteristica esentiala a finantelor private este ca aici fondurile nu se consuma, ci se avanseaza si recupereaza in permanenta in circuit. Finantele private mai cuprind alaturi de fondurile firmei propriu-zise de care am vorbit mai sus, fondurile de credit si fondurile de asigurari. Fondurile de credit se caracterizeaza prin aceea ca se constituie pe baze rambursabile si se utilizeaza tot pe baze rambursabile. Fondurile de asigurari se constituie in mod definitiv dar se folosesc numai in cazul survenirii riscul...

I'm seeking an experienced engineer/product designer that could build a 3-wheel E-Bike controller. This E-Bike controller should be capable of handling the following features: - Speed Control: The controller should have functionality to manage speed, with a maximum limit of 20 mph. - Battery Monitoring: The controller must include a system that allows for the continuous tracking of a Lithium-ion battery usage. - LCD Display: The controller should be equipped with an LCD display that visualizes the battery status and speed settings. It is essential the freelancer working on this project has experience in product design and engineering, with a strong familiarity in Lithium-ion batteries and how they function within e-bikes. Knowledge of LCD functionality is also n...

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I require an experienced PCB design engineer. The project involves designing a PCB, but the specifics of the design (su...process, and help in finalizing these parameters. Your role will be to: - Work with me to determine the type of PCB design (single layer, double layer, multi-layer) - Collaborate on the purpose of the PCB design, whether it's for prototyping, production, or circuit optimization - Help define the specific dimensions and form factor for the PCB Skills and experience needed: - Proficiency in PCB design software (e.g. Altium, Eagle, KiCad) - Experience with designing various types of PCBs (single, double, multi-layer) - Strong understanding of circuit optimization and PCB production processes - Ability to work collaboratively and guide the client throu...

I am looking for an expert in electrical design to assist me with a project I have. The scope and areas of expertise are quite broad and I'm open to input from professionals in the field. The ideal candidate should have experience in: - Circuit design - Power distribution - Control systems The end goal of this project is to maximize the efficiency of the electrical systems we have in place. This may involve improving energy efficiency, upgrading existing systems, or designing new systems from scratch. I'm looking for someone who is detail-oriented, has excellent problem-solving skills, and a good understanding of electrical engineering principles. The ability to work independently and communicate effectively is also key. If you have experience with similar projects an...

... The webapp should be responsive, adapting seamlessly to both desktop and mobile platforms. Key Features: - Show the shortcuts and everything on the initial screen. The location, car color, battery and other params should be able to be set from parameters - Climate Control System: The webapp should have a user-friendly interface for adjusting the car's climate control settings. - Navigation System: Implement a detailed and interactive navigation system. It does not need to work 100% but feel and look like maps. - Battery Status: A central feature of the webapp should be the ability to view the battery status, and navigate to different sections of the menu with ease. Ideal Skills: - Proficiency in ReactJS for a smooth and responsive user interface. Angular is ...

I'm in need of a circuit that can regulate voltage to 6VDC, with a max current of 500mA. This circuit will be powering LED lights and should be compatible with an input voltage range of 12-24VDC. The circuit should also account for the presence of 4 diodes. - 4 Diodes - forward V - 8V limit to 7V max - max operating current 500mV - inline switch to turn any of the diodes in circuit on/off - need an LED in line for each Diode if active or blown ( when diode fails it is shorted 1ohm) Key requirements and considerations include: - Voltage regulation: The primary functionality of the circuit is to regulate input voltage to 6VDC for optimal LED power. - Current capacity: The circuit should handle a maximum current of 500mA, ensuring the LED li...

...4-5 proficient Electrical Engineers to join us for a long-term collaboration. This opportunity is ideal for individuals with expertise in electronics, power systems, and communication systems. Key Requirements: - Strong command over MATLAB for data analysis, simulation, and modeling. - Proficiency in VHDL and Verilog for hardware description and digital circuit design. - Experience with multisim or similar simulation software for circuit analysis and design verification. This collaboration offers an exciting chance to work on diverse projects spanning electronics, power systems, and communication systems. We are committed to fostering a collaborative environment that encourages innovation and professional growth. If you are passionate about contributing your skills to ...

We require an FMEA expert. Our focus is on electrical and mechanical hardware systems like circuit boards, power supply, control systems, and communication systems. Your role requires you to create a detailed questionnaire and out of it to create a comprehensive analysis document for managuing risks. The ideal candidate must posess: - Proven experience conducting multiple FMEA activities in the past 24 months (provide evidence) - Specialised knowledge on electrical/ mechanical hardware analysis - Proficiency in examining circuit boards, power supply units, and control systems Kindly note that those without proof of previous FMEA execution need not apply. We seek someone who can help us entirely avoid or reduce risk. Your proficiency in identifying, analysing, and mitigati...

I'm looking for a skilled professional who can design a compact, efficient, and reliable battery pack and Battery Management System (BMS) for a body-worn application. The task involves creating a solution with the following specifications: - **Capacity**: The battery should provide a runtime of up to 2 hours on a single charge. - **Chemistry**: The preferred battery chemistry is Lithium-ion. - **Compact & Lightweight**: Given that this is a body-worn application, the design should prioritize being safe to the human, small and lightweight. - **Safety**: Fast charging is needed but the design must include safety mechanisms to prevent overcharging and overheating. -**Waterproof**: The battery pack should be IP65 rated to be usable in the shower -**...

...are seeking an experienced electrical engineer to design a multi-output power supply for a portable AC servo drive. The ideal candidate will have expertise in power electronics and PCB design, with a proven track record of creating efficient and compact power solutions. Input Specification: 220Vac. Output Specifications: Two sections are required: Power Ground Circuit: +15V, +5V. Lower Ground(controller) Circuit: +12V, +5V, +3.3V, -12V. The design must be lightweight and compact, suitable for a portable device. We need the design to be highly reliable and efficient, with considerations for safety and durability. Job Responsibilities: 1) Design: Develop a schematic and board layout for a multi-output power supply that meets the specified requirements. 2) ...

I'm working on an industrial automation project and currently at the prototype development stage. I'm seeking a professional to assist with specific circuit design tasks. Key Responsibilities: - Circuit design focused on industrial automation application Ideal Skills and Experience: - Proven experience in hardware design, particularly for industrial automation - Proficient in circuit design for prototypes - Knowledge of industrial automation standards and requirements This project offers an exciting opportunity to contribute to an innovative industrial automation solution.

I require a couple of photorealistic renders of a product using a high-resolution image from my step file. This rendering is going to be used for product visualization purposes. Please provide a render of the cabinet front on (with the door closed), a render of the cabinet with the door open from a slightly offset perspective, and a render of an individual battery module also from a slightly offset perspective. Key Requirements: - The step file already contains all necessary details including colors and materials to be used in the rendering. Ideal Skills: The ideal freelancer for this project must have a strong understanding of graphics and rendering techniques capable of producing high quality, photorealistic images. Experience in creating product visualizations from step fi...

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.

I'm looking for a skilled individual who can create a sketch for a rather specific and interesting project. Key Requirements: - Utilize a crash sensor micro switch: This element is the core of the project as it's designed to respond to an impact and trigger a series of events. - Trigger a 12v motor: The motor should start running as soon as the sensor detects an impact. - Simultaneously play a short MP3 file: The audio should begin playing once the sensor is activated, but it should be less than 30 seconds in duration. - Activate a solenoid latch: This component is crucial as it performs a critical function in the project. The solenoid latch should be triggered once the motor is on and the music is playing. - Stop the music and motor: Once the solenoid latch has ...

...professional who can design and assemble a custom made, electrically driven actuator with a control circuit. The specifics of the project include: - The actuator should be capable of providing linear motion. So, an understanding of linear motion systems and mechanisms is crucial. - The actuator must be able to handle a maximum load of 10-50 kg. - The driving mechanism for the actuator should be electrical. Therefore, the freelancer should possess strong knowledge in this field; experience in dealing with similar electric actuator systems would be a significant plus. - The design of a control circuit for managing the actuator's functions is also an integral part of this project. Exceptional skills in circuit theory and design are required. If you fit th...

Looking for an experienced 3D designer to help create a small (less than 10cm) prototype box made of plast...for an experienced 3D designer to help create a small (less than 10cm) prototype box made of plastic. This project will require the placement of five holes on the side surfaces of the box, strategically located for circuit adaptations. Requirements: - Knowledge and expertise in 3D design and plastic materials - Ability to accurately place specified holes on side surfaces - Experience in creating designs intended for prototype circuits - Prior experience with similar projects is a plus Your designs will contribute significantly towards the functional prototype of our circuit device. Looking forward to working with someone who can bring their creativity and precision...

...engineer who can design an innovative toy car. The target age group is 7-10 years old, so the design should be engaging and safe for this age range. Key Requirements: - Design: I'm interested in a remote-controlled toy car, specifically suited for indoor use. The design should be original, appealing to children, and durable enough to withstand frequent play. - Electric Circuit: The design should include a well-crafted electric circuit. - Components: I need assistance in selecting the right components to ensure the design is cost-effective without compromising on quality and safety. Ideal Skills and Experience: - Experience in designing toys, particularly for the specified age group. - Proficiency in electronics engineering, particularly in designing electric circuit...

I require a highly-skilled freelancer to design and develop a Near Field Communication (NFC) reader circuit. The circuit will focus on reading NFC tags (NTAG 215) via a custom-built antenna. Specifics include: - The operating range of the NFC reader antenna should be between 1 to 2cm. - It must be capable of detecting specific tags without unnecessarily scanning nearby ones. - Furthermore, the circuit will be integrated with a specified embedded system, developing compatibility is a must-have. For this project, strong experience in circuit design, NFC technology understanding and embedded systems integration is required. Attention to detail to ensure accurate tag scanning and low power usage is also a critical skill for this task. Potential freelancers shou...

I'm looking for a skilled 3D designer who can create a detailed, industrial-grade, metal switchboard with a focus on power distribution. A small single cubical to be of similar style of rest of existing switchboard (Step file will be shared) Need to place a circuit breaker and ATS, and draw in Busbar

I require a skilled drafter to redo my electric circuit from a JPEG image file. The image I have isn't clear and could do with your expert touch. - The task involves a high-level overview of the circuit. - No need to add details or annotations to components. - The final version should be delivered in PDF format. Ideally, you will have an electrical background with strong drafting skills and the ability to interpret and redraw an unclear image. Your attention to detail will come handy in ensuring the project is perfectly executed. Please ensure that the final circuit is clearly visible and professionally presented.

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 ou...

I'm looking for a proficient electronics engineer to design a custom circuit board. I'm unable to disclose details about its specific purpose and use at this time due to confidentiality reasons. Ideal Skills and Experience: - Expertise in circuit board design - Proficient in Electronics Engineering - Experience in custom board designs - Ability to maintain strict confidentiality Please only bid if you're comfortable working with limited project details and are capable of asking insightful questions to determine design specifics.

I'm seeking a creator skilled in 3D animation to craft an engaging educational video. The primary focus will be on the basic operations of lithium-ion batteries, coupled with illustrative aspects of how cooling systems work in sync with these technologies. Key Features:...complex science of lithium-ion batteries and their cooling system into an easily digestible overview. - Target Audience: The video will serve as an educational tool for college students, so the content should be academically accurate, yet easy to understand for non-experts. Ideal Skills and Experience: - Previous experience creating animated educational content. - Understanding of lithium-ion battery technology. - Capable of simplifying complex concepts into clear, compelling visuals. - Proficiency in 3D a...

As I'm venturing into a solar-powered USB module in my circuit design utilizing a SAMD51 microcontroller, I'm in need of expert assistance to address some issues with my current PCB design. I have the existing design and fab files at hand, but the project has not achieved its full functionality. - Key Issues: The circuit is experiencing power supply issues presumed to stem from the Voltage regulator, compatibility issues with the microcontroller, and an unresponsive USB output. These are the primary targets for debugging and solution creation. - Ideal Expertise: I am seeking an experienced engineer knowledgeable in PCB design, solar power modules, and the SAMD51 microcontroller. The individual must have a track record of troubleshooting and resolving power supply...

I need a proficient PCB designer, ideally familiar with ATMEL microcontrollers, to help in circuit prototyping. The circuit is of advanced complexity, consisting of multiple components that interact with each other. Key details: - The project is not basic, it involves multiple components that need to interact. - Familiarity and experience with ATMEL microcontrollers is required. - Despite its complexity, the design will not require integration with any other hardware. The perfect freelancer for this job should have a robust background in PCB designing, particularly for circuit prototyping, and must be a quick problem solver able to identify and correct potential issues swiftly through their design process.

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I'm looking to create a fault detection and current limitation system using MATLAB for power systems with 3 or 14 buses during short circuits. I need the system to: - Detect faults in real-time - Identify fault currents - Suggest or implement mechanisms to limit these currents such as circuit breakers - Ensure system safety and reliability - Provide guidance on how best to limit these fault currents during short circuits.

I'm seeking a skilled Autocad designer to produce 7 realistic images of prismatic battery modules. The images should: - Be highly detailed with textures and materials - Present the modules from a disected view Ideal candidates should have experience in creating technically detailed images, and have a strong grasp of Autocad's capabilities. Previous experience in designing battery modules or similar technical components would be a major asset.

I need a mechanical engineer with experience in product enhancement to improve the design of a wearable exoskeleton robot product. Key aspects to be addressed include: - Improving the adjustment and attachment aspects of the product, specifically in relation to Straps and fasteners, Joint movement range, Comfort padding, IP65 rating, Battery pack integration, Electronics and wiring integration, Adjustment to waist width and depth. Ideal skills: - Strong mechanical engineering background - Experience in product development - Proficiency in working with wearable technology products is a big plus - Knowledge in ergonomics, performance enhancement, and aesthetics - Ability to understand and meet user needs through custom adjustments I'm looking for someone who can combine ...

We require an FMEA expert. Our focus is on electrical and mechanical hardware systems like circuit boards, power supply, control systems, and communication systems. Your role requires you to create a detailed questionnaire and out of it to create a comprehensive analysis document for managuing risks. The ideal candidate must posess: - Proven experience conducting multiple FMEA activities in the past 24 months (provide evidence) - Specialised knowledge on electrical/ mechanical hardware analysis - Proficiency in examining circuit boards, power supply units, and control systems Kindly note that those without proof of previous FMEA execution need not apply. We seek someone who can help us entirely avoid or reduce risk. Your proficiency in identifying, analysing, and mitigati...

I am seeking a skilled freelancer to produce a detailed and accurate circuit Track Map. - The deliverable should be a high-quality, printable PDF of the track. - The map should include the track itself, along with specific features such as pit lanes and ripple strips. Ideal skills and experience: - Proficiency in map making and graphic design - Experience with producing detailed, accurate maps - Familiarity with road course track layouts and features

I need an expert in PCB design to create a small magnetic levitation motor. My ideal designer would possess stellar skills in: - Microcontroller-based circuit design. - Magnetic levitation systems. - Power efficiency management. The project doesn't require utmost power efficiency, a basic level would suffice. Although compact, this tiny maglev motor device should be firm and durable with functionality on par with larger models. A prototype, design files and instructions for assembly/testing will be essential deliverables. Previous experience working on similar miniaturized projects would be advantageous. Your ingenuity will be crucial in the success of this project. Let’s chat more about how you can help bring my vision to life. This magnetic levitation motor is used ...

I'm looking for a skilled engineer to create a CompactFlash CFast Digital Audio Player prototype. Qualifications: -must have Distortion Analyzer, frequency sweeps -be able to build a prototype board totally f...CFast Digital Audio Player prototype. Qualifications: -must have Distortion Analyzer, frequency sweeps -be able to build a prototype board totally functional -Simulate Analog / Digital signals Regarding hardware Cflash Audio Player using AAC codec Full prototype hardware to be shipped to US Audio player will use CFast card via SATA (not USB) and play audio files using AAC codec DDDAC1794 circuit Dual Dedicated PCM clocks via TCXO 44.1 khz and 48 khz auto select MUSES IC attenuator Steel enclosure (pick something from China but big enough to support batteries) RC...

I'm seekin...main task involves creating a system capable of monitoring and optimizing two key parameters: the power output of a generator and the state of charge (SoC) of the battery within the microgrid control system. Ideal candidate will have: - A strong background in reinforcement learning. - Proven experience with microgrid systems. - Understanding of energy management, specifically load shedding, power scheduling, and voltage regulation. Expected outcomes of this project should include: - A sophisticated microgrid control system capable to adapt within changing conditions. - Real-time optimization of the generator's power output and battery SoC. - Efficient control actions to manage and balance energy resources. Please provide examples of similar projects...

...process of creating a cost items database for residential electrical service items. I would like someone who has previous experience with similar work. I will need the database to be input into my management software called "Contractor Foreman". This database will need assemblies of materials assigned to each task. Key Requirements: - Cost estimates for lighting fixtures, electrical outlets, circuit breakers, and all other necessary items for a residential electrical service and remodel with adjustments for different types of condition that can e encountered. - A detailed breakdown of costs for each category is essential. - Extensive experience in providing accurate and reliable cost estimates for electrical systems is a must. - Knowledge of the current market r...

Hello, For a new project I need a IOT sensor that will be installed on a device that rotates. I need to know the am...rotates. I need to know the amount of rotations so I can service the device before it will break down. My device is not always connected to WiFi/Internet. I would like to see the amount of rotations on a remote location but I don't have to see them realtime. One update per day or per week is enough, don't know it makes a difference, but if so we can reduce the amount of data transmissions. 12V is available Pulses are count with a rotary encoder and based on the device type I have to set the pulse count per revolution. The name of the device must be adjustable so I know which IOT is connected to which device. Please let me know your though...

I need a basic logic electrical diagram created using Logic.ly. delivery time now. will take 15mins. The main purpose of the diagram is to help me understand an existing circuit better. Key Requirements: - Create a detailed and well-structured logic electrical diagram from the website - Utilize Logic. ly for the diagram's design and export Please note that I'm only interested in the use of Logic. ly for this project. Your experience in working with this tool will be a major advantage it's very basic request. Electrical engineering

I need an expert in renewable energy and optimization in Matlab to help me with a specific project. The project focuses on the optimization of energy storage systems, with a specific focus on batteries. Key tasks include: - Utilizing Matlab to model and ...determine the most efficient storage configurations. - Analyzing and interpreting the results to provide practical and insightful recommendations for energy storage optimization. The ideal freelancer should have: - Proficiency in Matlab and experience in the field of renewable energy. - Proven experience in optimization, preferably with a focus on energy systems or similar. - Specific experience with battery energy storage systems would be highly beneficial. - Strong analytical skills to interpret results and provide actionable...