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    17,173 charger circuit design jobs found, pricing in USD
    $90 Avg Bid
    8 bids

    I need someone with a solid background in ADS. I will provide the component values for the rectifier circuit. For the diodes I need them to model a real life diode (data sheet of desired diode attached). I do not require any design or analysis of the rectifier, I just want a function ADS simulation. Diode specs on page 5 of attached data sheet. Component values: C1=C2= 100nF D1 & D2 are identical (specs on page 5 of attached data sheet) R_L= 2000 ohm AC source will be connected to C1 and ground. V_ac= 200 V at 2 MHz Waveform should show input Ac voltage and output Dc voltage.

    $39 (Avg Bid)
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    2 bids

    We are from an IT consulting firm and an online tutoring company One of our client is looking for writing a research about the following topic "Construction of Electronic Nose with minimised power consumption using two sensor Wheatstone circuit" Please note : Requesting the freelancers who have engineering back ground from Electronics only , not from other back ground like general research writers

    $47 (Avg Bid)
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    7 bids

    I am looking for someone to develop a circuit as per the requirement. It would require two circuits to be developed, one transmitter and one receiver. The receiver will be powered via a lithium-ion battery and should have a charge controller inbuilt. the receiver circuit will trigger a motor once it comes in a range of the transmitter circuit. This is a time-sensitive project so need someone who can start by 27-11-2021. I can provide more details about the circuit and implementation in chat.

    $708 (Avg Bid)
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    13 bids

    I am looking for someone to develop a circuit as per the requirement. It would require two circuits to be developed, one transmitter and one receiver. The receiver will be powered via a lithium-ion battery and should have a charge controller inbuilt. the receiver circuit will trigger a motor once it comes in a range of the transmitter circuit. This is a time-sensitive project so need someone who can start by 27-11-2021. I can provide more details about the circuit and implementation in chat.

    $571 (Avg Bid)
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    14 bids

    To construct a pcb board with the following circuits Dc-Dc step down converter Charging circuit Power management circuit Zigbee module using the switches, sensors and actuators

    $187 (Avg Bid)
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    11 bids

    We have a working circuit need to convert them into a product PCB for Bulk Production Need some expert to do that same quickly on time.

    $341 (Avg Bid)
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    9 bids

    I would like to have two things designed that are based on the paper that you will find attached. 1) A "needl...dimensions are shown in the attached file. The array will be used in exactly the same manner as in the paper, to electroporate cells. The PCB would sit on top of the well of the plate and the gold pins sticking down into the liquid. The pins will need to get within 0.5 to 1 mm of the well bottom. 2) The electroporator will produce square wave pulses of up to 1000 V. The paper vaguely describes a circuit sitting between the +/- output of the electroporator and the needle array with 3 sets of pins to switch polarity from 1/2 to 1/3 to 2/3 and so forth. The needle array would be a disposable part that is used once and discarded. Production/population/soldering must be ...

    $593 (Avg Bid)
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    18 bids

    I am looking for product designer to design a motion capture device which include sensor module, body attachment and charger dock. The following link show similar product on the market : I have 3d cad model of the device prototype as a starting point.

    $101 (Avg Bid)
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    33 bids
    Looking for C programmer 3 days left
    VERIFIED

    i have one C project now. This project will provide more practice programming in C and working with circuits and digital logic. You will write a program that reads a circuit specification and generates a truth table for that circuit.

    $144 (Avg Bid)
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    30 bids

    the standard pcb as turn and stop signal together. in 12 red leds. I need same board like but with 6 red leds and 6 amber leds. high bringt for automotive accurance. Working with 12v and with a small wire connector on circuit. One board is the mirror of the other, as there are 2 sides tail ights. At the end of project, I need a file that I can send for printing ans assembly. With size, and all components needed ( leds, connectors etc .. ). EXTRA ( option ) : send me the final product. Pcb printed, with leds. ready to install in tail lamps. ( 2 pieces, left, and right )

    $40 (Avg Bid)
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    14 bids

    I need some help in designing a electronic circuit for a device, wich the main component is a high voltage module (flyback transformer). The basic goal is to convert a low voltage (3V DC) of a rechargeable battery to a High voltage (high voltage module transformer) 10KV in a continuous working time. In order to have a portable device and with longer working time.

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    5 bids

    I just need to give final touch to my cad drawing. Its urgent.

    $19 (Avg Bid)
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    42 bids

    Design 4 bits arithmetic unit that add, multiply and subtract using PTL & Domino *****simulate using cadence***** The app takes 3 inputs A, B, and C A, and B are 4 bits operands C is a 2 bits number (input for a multiplexing circuit) representing the operation Deliverables: 1- a step by step word file of the work done 2- all cadence files

    $175 (Avg Bid)
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    4 bids

    ac voltage measurement circuit and output of this circuit is in adc and send to pic16f877a

    $20 (Avg Bid)
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    10 bids

    Design 4 bits arithmetic unit that add, multiply and subtract using PTL & Domino *****simulate using cadence***** The app takes 3 inputs A, B, and C A, and B are 4 bits operands C is a 2 bits number (input for a multiplexing circuit) representing the operation Deliverables: 1- a step by step word file of the work done 2- all cadence files

    $33 (Avg Bid)
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    3 bids

    Write a program using QUARTUS ALTERA to work on De1-SoC FPGA BOARD. .................. The LED Brightening Control with an Absolute Encoder The circuit to be designed must provide control of the brightness of a single or multiple LED ‘s using values from an Absolute Contacting Encoder (128 positions). In addition, the circuit must display a decimal value of the LED intensity (0-127) by using three seven-segment displays. The circuit contains four logic blocks and 3 external components (Figure 1). The logic circuits are: • Code Conversion Table • Binary to BCD 3 digits (Decimal Values) • LED Brightening Control (PWM) • Seven Segments Decoder

    $41 (Avg Bid)
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    5 bids
    Cyber security 2 days left
    VERIFIED

    Topics: 1. Secure Multiparty Computation - Fairplay SFE - SFDL program - SHDL circuit 2. Application of Homomorphic Encryption - Design the cryptographic protocol - Socket programming 3. SMC Protocol Design - Protocol Design - Implementation of the Protocol Looking for expertise in these topics

    $30 - $250
    $30 - $250
    0 bids
    Trophy icon Logo design 2 days left

    We are a company that is looking to design a new logo. Our name is Tritium Electronics and we are looking to have a new logo that really speaks our brand. The company develops and manufactures circuit boards and connected devices for the internet of things.

    $150 (Avg Bid)
    Featured Guaranteed
    $150
    1317 entries

    12V / 2A Auxiliary battery charger with low cut off

    $286 (Avg Bid)
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    12 bids
    PCB designing 2 days left

    A PCB needs to be designed based on the circuit diagram provided. The design must be standard and simplistic to ensure fast fabrication. Certain changes may be required to make sure the circuit works perfectly.

    $126 (Avg Bid)
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    29 bids

    Circuit & Signals Experts Required Now

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    5 bids

    I'm looking for a couple of circuit and signal experts required

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    2 bids

    I'm looking for a couple of circuit and signal experts required

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    1 bids
    Arduino Task.. 1 day left
    VERIFIED

    Hi, I am looking for someone to do a simple task on Arduino but the freelancer should have Adafruit 2478 and Adafruit circuit playground class MCU development board 3000. I will share more details through chat.

    $30 - $250
    Sealed NDA
    $30 - $250
    6 bids

    Circuit & Signals Expert Required Urgently

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    5 bids

    Circuit & Signals Expert Required Urgently

    $70 (Avg Bid)
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    5 bids

    I went to look at a electric drum kit for sale, when I got there the man had plugged a battery charger from a Shark cleaner into it, and not the one it should have been, anyway it doesn't light up into life, we think he may have fried something in it, should the power from the shark charger be too much for it, would this be possible to fix or is it destroyed

    $184 (Avg Bid)
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    14 bids
    Arduino Task. 1 day left
    VERIFIED

    Hi, I am looking for someone to do a simple task on Arduino but the freelancer should have Adafruit 2478 and Adafruit circuit playground class MCU development board 3000. I will share more details through chat.

    $10 - $30
    Sealed NDA
    $10 - $30
    1 bids

    Hi Jaibhan Singh G., I noticed your profile and would like to offer you a PCB board design. Its to connect two multiplexers, esp32, charger circuit, battery, and outlet port

    $20 (Avg Bid)
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    1 bids

    Amplifiers av receivers home theatres &all Etc.......

    $89 (Avg Bid)
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    8 bids

    Need to create a circuit in Simcenter Amesim software. Need someone who are proficient in Simcenter Amesim software

    $166 (Avg Bid)
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    3 bids
    STM32 + LoRa + Magnetometre 20 hours left
    VERIFIED

    I only need software and circuit diagram for a project. The project should be like this: Data should be sent to a LoRa gateway via an 868Mhz LoRa module with an STM32L15x MCU. This must be an IOT sensor powered by a battery. The data to be transmitted to the LoRa Gateway will be data from a Magnetometer sensor and an IR transceiver. Also, the voltage of the Battery should be measured and sent via LoRa. normally the MCU should be in sleep mode and wake up every 15 seconds and check the IR sensor, if there is data, it should send it or it should wake up and send data according to the interrupt from the magnetometer.

    $293 (Avg Bid)
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    15 bids

    You all are working as occupational health and safety chief inspectors. You are preparing an inspection document, to be used by inspectors in your team. The document should provide the necessary information for an inspector to successfully inspect the site (in this case the 6 topics on site, see below). Provide: - a description of the site / person / manufacturing line / etc. you will inspect. - an overview of the current safety level in the given industry (current status) - a list of elements you are going to inspect (pick 6 topics to inspect, e.g. machine, process, emergency preparedness plan, etc.) For each topic on this list, provide. * the complete risk assessment (use the safety elements excel sheet) * the reference to the legal requirement to be met (act, law, regulation...

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    14 bids

    Design a circuit for very low amplitude noise i.e. below 0.1microvolt & below 0.3 hz, then pre amplification with gain 1000 ; then passing through filters to separate out signals between (1)0.3 to8 hz (2) 8 to 11 hz (3) 8 to13 hz (4) 11o 16 hz (5)16- 30 hz (6) 30 to 120 hz then re-amplification with gain 1000 ; then saving all in csv data file,

    $114 (Avg Bid)
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    4 bids

    Design circuit to derive rpm from coil negative wire to arduino. Needs to be universal and work on as many makes and models of cars as possible. Needs to deliver rpm signal to microcontroller the same way an existing circuit does that’s taken from dash tacho.

    $130 (Avg Bid)
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    18 bids

    This could be a 10 hours working task, Implement a circuit capable of adding and subtracting two 1-bit binary numbers. Use DIP switches to control your inputs and LEDs to show your outputs. drawing truth table the kmap came out expression logic diagram

    $1 / hr (Avg Bid)
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    10 bids

    VHDL code ,ModelSim to simulate the D flip-flop , NP Domino 8-input AND circuit

    $3 / hr (Avg Bid)
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    8 bids

    Create schematics for HMEQ circuit, Design PCB layout for HMEQ, matching style and connector locations with The Rodent. Provide all files in KiCad includiing manufacturing gerbers, project files, and library files. Write a build guide for the HMEQ circuit. Delivery time: 2 days from acceptance

    $39 (Avg Bid)
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    1 bids

    I need someone to design an 8-bit Addressable Latch with built in 1 of 8 Decoder as seen in figure 1. The circuit is composed of three stages, the decoder, latch system and a buffer output.

    $163 (Avg Bid)
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    6 bids

    I need a simple method to track electronic parts used on various circuit boards. when building another set of boards, I need to generate quotes for various suppliers of those parts, create excel's to give to suppliers for quoting, stocking parts when purchased. DB created, although needs relationship changes/fixs

    $174 (Avg Bid)
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    11 bids

    I need someone to design, assemble and ship a bidirectional power switch module with driver circuit. This contains two N-channel power MOSFETS with a common source with a driver circuit connected to the two MOSFETs gate and source. I need this module to handle at least 150V of AC voltage across the VDS of each MOSFET. The max continuous AC current will be 90A. The maximum current that he MOSFETS and driver circuit need to switch is 100kHz Wire screw terminals are preferred but not required. All components need to be mounted on a single flat platform. Engineer is responsible for parts and shipping cost

    $527 (Avg Bid)
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    9 bids

    I'm looking for a couple of Microcontroller circuit and signal experts

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    12 bids

    During lift off our solar panels are held, under tension, close to the body of our satellite by a piece of kevlar string. When the string is cut the solar panels will spring into position and deploy. To cut kevlar string a “thermal knife” is commonly used, this requires an amount of current to be passed through a short piece of Nichrome wire to heat it that will in turn melt through the kevlar string and cut it.

    $46 (Avg Bid)
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    5 bids

    ...that something in the PCB is not correctly design, because I've tested the entire script (and by parts) using ESP devKits and it worked fine. What I'm most concerned about now is getting correct measurements from the 200SS sensor. So I'm looking for someone experienced who can get deep into my PCB design and get the SS200 sensor measuring perfectly and also get some good electronics practices into the design. I can work side by side, when needed, via videoMeetings testing new versions of the hardware and I'll provide all the relevant info in order to get my expected results. -- The main materials are: - ESP32-WROOM-32 programmed in Arduino IDE - DS18B20 temperature sensor - 200SS sensor + 74HC4051 MUX module + BJT + MOSFET for reading ci...

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    20 bids

    I'm working on a bioimpedance project. I want to create a VCCS, based on enhanced howland circuit. I would like to get a steady current of below 1mAmp. The current should be stable over wide band of frequencies (1Khz up to 1Mhz) The current should be stable on wide range of loads (1ohm up to 10Kohm). The current should be as noise free as possible. I would like to ask how to designe the circuit for that purpuse. I've used a circuit which i've taken from a paper from 2012 (attached) but it is not stable at wide frequencies or loads.

    $180 (Avg Bid)
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    6 bids

    I am looking for a freelancer to complete a program and circuit for Robot, an interactive robotic sculpture that detects and responds to its environment. Your background in computer and electrical engineering would make you a great candidate. The Robot uses an Arduino or Teensy to run battery powered stepper motors with encoders, sensors, and LEDs using the Arduino (C++) program. All the components have been prototyped, but they need to be combined, printed, powered, and tested to make it ready for exhibition. White LEDs fade on and off and Stepper motors attached to the legs run a set path affirmed by the encoders, while the sensors are scanning the area for a person. When a person is detected the motors attached to the legs stop, LEDs switch to a strobing red, and the head turn...

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    23 bids

    PCB Solution Need to develop for 4s Lithium-ion battery pack 1st, then need to enhance for 14s 1) cell overcharge limit 4.15v 2)Cell over discharge limit 3.5v 3) can adjustable those voltage limits like XH-M604 module 4) Set limit for over temperature of ntc (on battery pack) and activate Alarm/relay 5) Short circuit protection

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    9 bids

    Circuit and Signals Experts for Quick Short Task

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    3 bids