Charger circuit design jobs

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    15,042 charger circuit design jobs found, pricing in SGD

    Can you please re-build this circuit using VeeCAD , and add resistor to each led used to protect from current. Do the work as most tied and look simple. And I will include the parts we will using in the circuit

    $186 (Avg Bid)
    $186 Avg Bid
    6 bids

    We need a Buzzer Flasher Circuit, this Buzzer flasher circuit can operate from 12V battery, the voltage range would be 11Volt to 15 Volt. All component should be discrete, 1. The voltage range would be 11Volt to 15 Volt. 2. All component should be discrete. 3. Transistor should be low cost like BD140 for switching and BC547 for timing. 4. The circuit should operate 12V 24 Watt bulb. 5. Buzzer s...

    $130 (Avg Bid)
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    13 bids

    Xbee3 Cellular Gateway with 18650 battery power and charging circuit.

    $198 (Avg Bid)
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    4 bids

    You are 16- 21 years old. No experience is necessary. My first choice countries are Bosnia and Herzegovina, Brazil, & Serbia. My second and third choice countries are listed further below. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. You will normally work 1 hour/day for 10 US dollars/hour. Therefore, I presume Freelancer will pay you 9 US dolla...

    $12 / hr (Avg Bid)
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    6 bids

    i want someone in Malaysia prefer near by kota damansara to do the project, build MPPT circuit using buck and also DC/AC converter and connecting it with solar and battery with the simulation

    $89 (Avg Bid)
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    2 bids

    i want to make simple capacitance to pwm convertor, the capacitance i want to read is too low,,, 30000-33000pf this device mainly used for highet adjustment for laser machine,,, to keep head highet at specific distance its based on Oscillator

    $658 (Avg Bid)
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    16 bids

    I need an electrical and electronics Engineer Expert domain. Linear Circuit analysis DLD (Digital logic design) Circuit analysis Control System Signal and System Verilog/VDHL Only Pakistani Eligible for this job Thanks

    $18 / hr (Avg Bid)
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    7 bids
    PCB design 6 days left
    VERIFIED

    I have a project need to be designed four layers. This project is for an audio system with high quality. I need an EE is very familiar with the audio circuit and Eagle. The circuit is very simple, so the budget is very limited. I need the person can guide me.

    $15 / hr (Avg Bid)
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    15 bids
    Digital System Designing 6 days left
    VERIFIED

    Task is to design, construct and test a digital circuit which will display a number on a seven-segment display. (Further info will be given on request)

    $123 (Avg Bid)
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    12 bids

    Task is to research, simulate, test and debug An audio frequency integrator, using op-amp - Research circuits that can build An audio frequency integrator. - Design the circuit. - Create a simulation of An audio frequency integrator showing input and output voltages. - Find faults in the development of the circuit . - Repair the faults while building the circuit. - Explain the use of the componen...

    $123 (Avg Bid)
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    3 bids

    iLumen is a high end product developer and manufacturer with its own R&D department. Dedicated engineers work daily to develop and create products to monitor PV systems, to help increase the yield and to ease up the maintenance process. iLumen is most famous for its patented PIDbox which increases the yield of PV systems. Only iLumen offers solutions to the market for each type of inverter an...

    $68 (Avg Bid)
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    9 entries

    I need you to design a new Solenoid lock mechanism, I don't have the design. The solenoid mechanism will connect to a Circuit board, I have all the Casing hardware designs, and i also have the circuit design. I only need the solenoid mechanism, coil, actuator.

    $1 / hr (Avg Bid)
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    4 bids

    design a battery power (ultra low power) IR proximity sensor circuit using atmel microcontroller code by only C language

    $7 / hr (Avg Bid)
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    9 bids

    I would like freelancer to design USB type C power delivery (PD) fast charger. It should have all the protections and should be intelligent. PD chargers are fast [login to view URL] should have experience of designing charging/power device. Freelancer should have knowledge of PD chargers.I would like to have block diagram , schematic diagram, PCB layout, PCB artwork ( Gerber file) , 2 prototype...

    $801 (Avg Bid)
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    8 bids

    You are 16- 21 years old. No experience is necessary. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. You will normally work 1 hour/day for 10 US dollars/hour. Therefore, I presume Freelancer will pay you 9 US dollars/hour after they deduct their 10% commission. ✻ HOW TO BID ✻ D...

    $14 / hr (Avg Bid)
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    15 bids

    I need help studying for introduction to electrical engineering

    $19 / hr (Avg Bid)
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    16 bids

    I require a simple isolated circuit interface/firing circuit from an Arduino to AC-AC IGBT Chopper in the attached picture. The design must be able to take a single PWM signal to create both signals to drive the IGBT Chopper as in the diagram. Please contact me for more information if required

    $255 (Avg Bid)
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    12 bids

    You are 16-21 years old. No experience is necessary. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. You will normally work 1 hour/day for 10 US dollars/hour. I presume Freelancer will pay you 9 US dollars/hour after they deduct their 10% commission. ✻ TO AVOID SPENDING ONE OF ...

    $14 / hr (Avg Bid)
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    1 bids
    $30 Avg Bid
    10 bids

    You are 16-21 years old. No experience is necessary. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. You will normally work 1 hour/day for 10 US dollars/hour. I presume Freelancer will pay you 9 US dollars/hour after they deduct their 10% commission. ✻ TO AVOID SPENDING ONE OF ...

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    4 bids

    Develop a MYSQL database for indian stock market data. data points are given below: data points needed for a given day for all companies listed in NSE. company name symbol closing price opening price day high day low volume (total volume of shares traded) total value (in INR) of the shares traded market action (up or down) percentage change in price price change in actual upper circuit lo...

    $120 (Avg Bid)
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    3 bids

    I am looking for someone who can design circuit and PCB design for my project.

    $708 (Avg Bid)
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    16 bids

    it is calculate and discussion and use the program NI Multisim simulation

    $111 (Avg Bid)
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    5 bids

    Is the electronic circuit plus the power source with an ON/OFF switch. The circuit should be able to use the current generated by the dc current (preferred: Rechargeable lithium batteries) and sent it to a of nichrome coil wire in order to heat it enough (100 c degrees) 1- The current should be sent as intermittent to reserve the power of the batteries as long as possible. 2- The batteries should ...

    $22 (Avg Bid)
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    4 bids
    Build electronic circuit 4 days left
    VERIFIED

    I need some help with designing a small PCB board. It will be a pre-amp volume normalizar for audio. Will be using the AMS1117 chip but can be a different one as well. Hopefully some EQ and a volume control + protection switch off can also be added.

    $184 (Avg Bid)
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    27 bids

    Motion sensor Alarm with pre-recorded audio in the SD Card. All controlled by STM8s MCU. The scope included Circuit Desing, PCB files and associated software ( MCU program). Preferred IDE Cosmic

    $157 (Avg Bid)
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    10 bids
    Trophy icon circuit design 4 days left

    Design a simple circuit and specify components for four backlit buttons with a momentary action. The circuit will pass 240VAC through the momentary buttons and will also need to provide LED low temperature backlighting for the four buttons. The circuit needs to be 25mm wide and 50mm High with the LED's centred in the 4 squares in the diagram.

    $27 (Avg Bid)
    Guaranteed
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    4 entries

    I have high capacity batteries and pull from them about 10 amps for a very short time of 0.300 Milli secs. The two batteries are 12 volts each and are connected in series. We currently use a contactor/switch for this purpose. I would like to wireless power bank and have one available that will handle 50 amps. I need assistance in developing a gate circuit for it, operating from the battery vol...

    $606 (Avg Bid)
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    11 bids

    I have two different project by same software. The project one is running in three phases (Introduction to Xilinx Vivado Design Flow − Simple Combinational Logic Gate, Combinational Logic Circuits and Minimisation − Design a Logic Circuit to Implement Majority Function, Application of Exclusive OR and Exclusive NOR Gates − Design and Implement Parity Generator and Checker) which...

    $257 (Avg Bid)
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    5 bids

    Design a 500VA/600VA delta converter UPS circuit. Preferred from Tamilnadu.

    $1250 (Avg Bid)
    Featured
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    3 bids

    Need a Circuit design for a 3A converter from 120V AC to 12V DC, SMPS type. Max Board size is 75mm x 100mm. This powers Inductive loads - a water Pump and a motor, and a 555 Timer at 12V.

    $50 (Avg Bid)
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    15 bids

    14 years Foreign business experience in power adapter,charger,cable,other phone accessories and silicone consumer electronics goods. Used to worked with famous companies like LF Ground, Office Depot, Wal-Mart, Argos, Juicy Couture,Victoria's Secret,Guerlain,etc. Hope my working experience and resource bring us connection and mutual benefit.

    $596 (Avg Bid)
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    4 bids
    Clean Water 3 days left

    We have developed a device to produce clean water for third world countries using UV. We need a small PCB to hold a circuit that shuts it down if the UV light goes out to prevent contamination of the treated water. We have the circuit and BOM. We need someone to design the PCB and produce or have produced 10 boards for the first run.

    $115 (Avg Bid)
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    9 bids

    You are 16-21 years old. No experience is necessary. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. You will normally work 1 hour/day for 10 US dollars/hour. But, I presume Freelancer will pay you 9 US dollars/hour after they deduct their 10% commission. ✻ TO AVOID SPENDING ON...

    $16 / hr (Avg Bid)
    $16 / hr Avg Bid
    7 bids

    You are 16-21 years old. No experience is necessary. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. You will normally work 1 hour/day for 10 US dollars/hour. But, I presume Freelancer will pay you 9 US dollars/hour after they deduct their 10% commission. ✻ TO AVOID SPENDING ON...

    $12 / hr (Avg Bid)
    $12 / hr Avg Bid
    15 bids

    Hello, I need the PCB for a small device with : - a QR code scanner - an 8x4 LCD screen - a membrane switch keyboard I need circuit design first and logic secondly.

    $461 (Avg Bid)
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    16 bids

    You are 16-21 years old. No experience necessary. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. I repeat: I estimate you'll receive 180 US dollars/month for 20 hours/month ✻ TO AVOID SPENDING ONE OF YOUR BIDS ✻ If you want to foolishly squander one of your bids then bid ...

    $12 / hr (Avg Bid)
    $12 / hr Avg Bid
    3 bids

    I estimate you'll receive 180 US dollars/month for 20 hours/month. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You will help me build a consumer IoT product. ✻ TO AVOID SPENDING ONE OF YOUR BIDS ✻ If you want to foolishly squander one of your bids then bid on this project the normal way. But instead you should paste....

    $16 / hr (Avg Bid)
    $16 / hr Avg Bid
    6 bids

    I estimate you'll receive 180 US dollars/month for 20 hours/month. My first choice countries are Bosnia and Herzegovina, Brazil, and Serbia. You neither need an Arduino nor an ESP32. You can avoid spending one of your bids yet bid on this project. ✻ TO AVOID SPENDING ONE OF YOUR BIDS ✻ If you want to foolishly squander one of your bids then bid on this project the normal way. But instead...

    $14 / hr (Avg Bid)
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    12 bids

    specifications: input: 5.5V to 30V must have 3 DC adjustable outputs: each output should have: voltage should adjustment 0.5V - 30V (should sustain till 12A) need efficient circuit design with required heat sinks. PCB layout with list of components. with 5 working prototypes.

    $120 (Avg Bid)
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    8 bids

    specifications: input: 5.5V to 30V must have 3 DC adjustable outputs: each output should have: voltage should adjustment 0.5V - 30V (should sustain till 12A) need efficient circuit design with required heat sinks. PCB layout with list of components. with atleast one ready prototype.

    $15 (Avg Bid)
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    6 bids

    I would like to have a developer to design and build an ERP application with the module (accounting, cash flow, logistics, invoicing, budget, workflow ..) in short, the management circuit for a service company.

    $865 (Avg Bid)
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    13 bids

    BePro Barbers is looking to expand and start manufacturing and selling wireless charging station mats for barbering tools etc. We need a circuit diagram made to fit in a small seamless designed adapter to receive the wireless charge. please contact us for more information. Thanks

    $509 (Avg Bid)
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    17 bids
    Wind tunnel test controllers 2 days left
    VERIFIED

    We are an aerospace company [login to view URL] [login to view URL] We are looking to contract out small small micro controllers for various wind tunnel test applications. For example: we require a controller that can run a program of up to 10 minutes during which the following parameters are controlled: 1 stepper motor speed, 1 cycling solid state relay on time & off time. We are lookin...

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    36 bids

    I estimate you'll receive 180 US dollars/month for 20 hours/month. You must neither live in Africa, Asia, Canada, India, Pakistan, Russian Federation, USA, nor Western Europe. You neither need an Arduino nor an ESP32. ✻ TO AVOID SPENDING ONE OF YOUR BIDS ✻ If you want to foolishly squander one of your bids then bid on this project the normal way. But instead you should paste... Arduino_or_...

    $14 / hr (Avg Bid)
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    I want freelancer to design fast mobile charger using provided MCU.I would prefer to have Chinese freelancer as data available and components available are in Mainland China.I need schematic, hardware design, PCB layout, Gerber file, Firmware and prtototype. Freelancer should have experience in design of quick chargers. Charger should have all the protections. These chargers are to be sold in [lo...

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    I am looking for a PCB designer who can turn my 3 sketches into technical drawings so that I can have these 3 prototypes produced. (The one who does this job (well) will get approx. 1-2 other jobs after this is done) PCB #1 power distribution -converter -ups -analogue_timed_switch PCB #2 analogue data distributor PCB #3 data and power distributor For each board there is a separate sketch of the ...

    $422 (Avg Bid)
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    21 bids