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    15,713 circuit design jobs found, pricing in CAD

    We need to make small changes to our existing circuit board by replacing a solder pad footprint with a header (board mounted connector). Find the necessary new part design files and modify our existing circuit board project. We will provide most of the new part information as well as our existing Gerber and Eagle files. You may need to produce a custom footprint for the new part. You will provide a package of revised working files for us to send to our PCB maker. Details:

    $23 / hr (Avg Bid)
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    ...number generator circuit designed and built for my research project. The RNG must have the following characteristics: The circuit must be capable of delivering and maintaining a steady stream of randomness The circuit needs to be interfaceable to a computer system via a standard USB port The circuit must be capable of delivering randomness at a rate adjustable through the USB serial interface. The circuit must be biasable, The bias should be deliverable via the USB serial interface. The bias should affect the RNG non-deterministically. The circuit must be powered using the USB port. Other requirements are flexible. Ideally we will have the opportunity to discuss my requirements together before you perform the work. Acceptance criteria con...

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    WT (wind turbine) model must be made in DPF software (DiGSILENT PowerFactory software) according to international standard IEC 61400-27-1. In DPF wind turbine type 4B template (Which is already available in software) will be used and modified internal controller parameters to...ride through) events. I am quite familiar with the DPF but I need most of the help regarding technical knowledge but as we have to make model in DPF then it is also necessary that you have experience with DPF software. The freelancer must be familier with the DiGSILENT power factory software and also with the building wind turbine model and tune the internal controller to swith ON and OFF circuit breaker during HVRT (High voltage Ride through) and LVRT (High voltage Ride through) events Kind regard...

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    simulations to optimize Piezo cavitation and match of driver circuit?

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    We have an one PCB with ATMEGA32 Controller. We want to be upgrade this with STM32 Controller. DC Power Supply will also be upgraded. Sensor, Communication and Amplification part will also be changed.

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    ...Driving Assistant Professional which incorporates an improved adaptive cruise control for the city, autonomous emergency braking at intersections and more efficient lane keeping assistance than before. The engine range of the BMW X4 remains unchanged except that the xDrive30i petrol engine is now hybrid miniatures like the diesel blocks. The electric starter-alternator powered by a dedicated 48 V circuit allows you to benefit from a temporary support of 11 HP while consuming less. XDrive all-wheel drive and eight-speed automatic transmission are standard on all trim levels. The section level petrol engine is still supplied by the X4 xDrive30i which loses 7 HP to offer 245. The X4 xDrive M40i still shows 360 HP. The X4 M Competition remains strong point with a 510hp six-cylinder...

    $3 - $8 / hr
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    Hi, We need someone who can design electronics for our product. You need to review product details, select sensors according to need and design electronics and PCB for it. We also need same person to do firmware and testing for it. We need reasonable quotes please because we are not new in this field. Further details will be shared with selected freelancers only. Thanks.

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    ...). This should be used as string object as well in Xpacker. Output is a blender file that can be exported as .fbx with all the right textures to work in Xpacker. It should be made of 4 tiles (white-red-white-red) so I can change the colours depending on the circuit. • 1 Grand stand with roof to be used as main stand in a circuit • 1 simpler open metal stand • Pit building with garages and offices on top (as inspiration you could use this ) It should be a string object with a “start” object (i.e. the glass offices of the picture), a “pattern” object that can be used as string, which would be the garages itself, and an “end” object (i.e. parking for the safety car). Attached picture of

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    I need to ship you these circuit boards for diagnosis. I have an OEM gear selector for an ICE powered car. It has 5 buttons and associated LEDs. It normally outputs a CAN or LIN bus based signal. But I just need it to output a "to ground" signal from each switch. What I would like to do is ship you the circuit boards and a spare connector with the pins. I need the LEDs associated with each of the 5 switches to illuminate when each switch is engaged, and the unit sends out a “to ground” output from each of the 5 functions, via the connector leads in the attached image. I tried to just solder on leads to the switch contacts of the larger board, but the leads and solder would not adhere. One can see in the image where the large board was burned at the ...

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    hen an IGBT or MOSFET are fully "on" they are known to be saturated, when they exceed their maximum current ratings they are known to "over saturate" which will eventually cause failure of the device. While IGBT's and MOSFET's are used for very simi...device. While IGBT's and MOSFET's are used for very similar applications it should be noted there are two main differences, the MOSFET tends to lean towards high frequency low-power switching whereas the IGBT leans towards lower frequency and harsher switching conditions, these are just the common assumptions. Due to the fairly ruggedised features of the IGBT they normally have around a 10us short-circuit capability and a higher voltage rating which makes them a lot easier to protect. The MOSFET ...

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    Ac Current protection circuit 2 days left
    VERIFIED

    need e fast short circuit protection for the ac power line

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    Short circuit 1 day left
    VERIFIED

    Short protection and over load protection for ac alternative current ca

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    I have a simple teensy sketch. I have supporting schematic and hardware. I have compiled to best of my knowledge but I am doing something wrong. I am trying to put together but somehow cannot seem to get it working. I would like someone to guide / assist me in what I need to do to get the project working. I would also like someone to modify the code to port from a teensy to esp32/8266. For a professional this will be easy work. For me I don’t have the attention span. I am confident with soldering circuitry and simple code. But I am not a c+ nor a micropython expert. So I require the services of someone who is competent in arduino, teensy, c++, python and circuitry / pcb. Also have another project looking to reverse engineer a pcb where to the successful applicant will receive a n...

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    Hello Looking for PCB Engineer to create a GERBER File for the circuit board as shown on Pages 7 and 8 of the attached PDF

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    We have finalized the QMK Firmware for one of our products and we are looking to finish the last piece which is the RGB Mapping. A simple job that will require 1-2 hours at most if you are familiar with C/C++, QMK, and Circuit diagrams.

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    Hi Chi Fung Brian F., I am looking for a freelancer who has experience in electronic design in Hong Kong. I noticed your profile and would like to offer you my project. We can discuss any details over chat.

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    Problem statement: creating a convenable circuit that satisfied these specifications – Supply voltage: VDD=2.2V – VIO=5.5VTemperature:-40C 25 C to 125C Operating Mode :Program/Program Verify-Read/Read Program. –Program Verify Read:10k (PVR Mode) – Read Mode :5k {Read_Programmed Cell& Read_Uprogrammed Cell – Current :<100uA. (Decreasing current from 168.4uA to 100uA – checking the sensing resistance and read current About Sensing resistance : Lower than 10K(PVR Mode), Lower than 5K(Read Mode), at all corner simulation About Read Current: Lower than 100uA at all corner original circuits (Block diagram) read current maximum value is 168.4uA, its over limitation creating a convenable circuit (Block diagram) that make the ...

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    Problem statement: creating a convenable circuit that satisfied these specifications – Supply voltage: VDD=2.2V – VIO=5.5VTemperature:-40C 25 C to 125C Operating Mode :Program/Program Verify-Read/Read Program. –Program Verify Read:10k (PVR Mode) – Read Mode :5k {Read_Programmed Cell& Read_Uprogrammed Cell – Current :<100uA. (Decreasing current from 168.4uA to 100uA – checking the sensing resistance and read current About Sensing resistance : Lower than 10K(PVR Mode), Lower than 5K(Read Mode), at all corner simulation About Read Current: Lower than 100uA at all corner original circuits (Block diagram) read current maximum value is 168.4uA, its over limitation creating a convenable circuit (Block diagram) that make the ...

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    I want a circuit which will change speed of Mixer Grinder (food processor) with numerical Display. Attaching a photo for your reference

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    Hi Muhammad B., We are looking for a electronics Engineer to assist us with a project. We have designed a system which uses RF to pass a reading from one circuit board to another. The reading is a measurement taken by a sensor. The second circuit board is hard wired to a 10" nextion display. is this something you can work with? If it is then lets discuss the project further. Thanks Jason

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    ...project is to design a gate circuit using transistors. Refer to attached example signal. The raspberry pi sends an input signal to the gate circuit. Another input from the raspberry pi called GPIO controls the gate circuit with 3.3 volts. When the GPIO signal is HIGH, it will open the gate and allow a 3.3V square signal to pass to the output (input ). When the GPIO signal is LOW, it will shut the gate circuit and output will be 0V. Circuit must be tested in LTSpice using the attached 'Input ' for the input signal, and using the attached 'GPIO PWL ' as the GPIO signal. The end of job will be complete when you send a satisfactory and working LTSpice model to me. Simulation can be terminated at 3 ms stop time. You can util...

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    We have an existing design that due to part being obsoleted needs to be redone. The current design utilizes and 8 bit Freescale processor and we would like to have the new design done with the Arm processor. We are looking for someone with circuit and software design.

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    NDA
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    This project requires you to have knowledge of basic circuit, mesh analysis, rectangular and phasor forms

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    Rf circuit design 18 hours left

    Hello ı need to work about rf circuit design in ads

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    Hello ı need work about rf circuit design

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    rf circuit 18 hours left

    Hello ı need work with you about rf circuit

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    To develop a PCB which combines the following functions: • USB C to 12V 1.5A • Latching circuit (Press ON, Hold OFF) • Wireless power transmission

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    Subject:128bit eFuse OTP IP design Problem statement: creating a convenable circuit that satisfied these specifications – Supply voltage: VDD=2.2V – VIO=5.5VTemperature:-40C 25 C to 125C Operating Mode :Program/Program Verify-Read/Read Program. –Program Verify Read:10k (PVR Mode) – Read Mode :5k {Read_Programmed Cell& Read_Uprogrammed Cell – Current :<100uA. (Decreasing current from 168.4uA to 100uA – checking the sensing resistance and read current About Sensing resistance : Lower than 10K(PVR Mode), Lower than 5K(Read Mode), at all corner simulation About Read Current: Lower than 100uA at all corner original circuits (Block diagram) read current maximum value is 168.4uA, its over limitation creating a convenable ...

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    Hi, I need a compact custom made circuit that emits high voltage discharge pulses of sufficiently high impulse current and brief duration (Please see design and specifications attached). Please quote cost and turn around time.

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    Create a circuit for analogic amplifier signal from external piezoelectric sensor. Technical details have been provided.

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    DBHitek 180nm BCD Process Problem statement: creating a convenable circuit that satisfied these specifications – Supply voltage: VDD=2.2V – VIO=5.5VTemperature:-40C 25 C to 125C Operating Mode :Program/Program Verify-Read/Read Program. –Program Verify Read:10k (PVR Mode) – Read Mode :5k {Read_Programmed Cell& Read_Uprogrammed Cell – Current :<100uA. (Decreasing current from 168.4uA to 100uA – checking the sensing resistance and read current About Sensing resistance : Lower than 10K(PVR Mode), Lower than 5K(Read Mode), at all corner simulation About Read Current: Lower than 100uA at all corner original circuits (Block diagram) read current maximum value is 168.4uA, its over limitation creating a convenable circuit (Bl...

    $3 - $10 / hr
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    We need to design a battery-powered Raspberry Pi Zero realtime linux system that reads SMPTE timecode from audio in (when available) and display it on a 7-segment display - When there is no audio on the input, it generates timecode to audio out using Si5351A board or a DS3231 RTC There needs to be a startup loop that reads the audio input for signal, a 4-way switch for type of timecode, checks status of an open/closed circuit, and a push-button for user input. Once the push-button has not been triggered for two seconds and the circuit is open, then the timecode needs to start generating with the

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    I need to run 3 circuits in consecutive sequence at the rate of 60,000 cycles per minute. In other words, power must run through a single circuit, disconnect that circuit and connect the next (2nd) circuit, disconnect the 2nd circuit and connect the 3rd circuit, disconnect the 3rd circuit, and then start all over again, and do this 60,000 times per minute. This is using 12 volts DC, 60 Amps. I also need a variable speed control for the speed of the sequences so that I can run it at a slower speed of sequences if desired. I may decide to use 24 volts and 30 Amps instead of 12V/60Amps, or I may use a combination of the following. I am running this off of five - 12 volt, 12 Amp lithium ion smart batteries in parallel or sequence, to get the desired v...

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    Need a tutor to teach on logisim Circuit topics. If anybody interested please apply

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    Refer to attached circuit schematic. The transmitting raspberry pi (TX pi) sends a data signal to a filter circuit. The filter circuit removes the 3v that the rpi sends when there is no data streaming in order to protect the amplifier. The amplifier then sends the data signal down a long wireline to the receiving Pi (RX pi). The problem is that the program uart_rx is expecting to see 3V to indicate there is no data. Instead it sees 0V and thinks this is data so it writes empty values to the file. The scope of this job is to modify uart_tx.c files and uart_rx.c files so that the transmitting program sends a start of file indicator, and end of file indicator. The receiving program should then be able to identify when the data is starting so it can start to write to th...

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    Need help repairing copper that has lifted off circuit board between two pins. As well, need a fuse, soldered between two contact pens on board.

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    This project will require the design of an antenna and pcb circuit board. I am looking for someone with a strong background in physics and can work with designing a radar antenna. Will hire multiple candidates for this job. Candidates for this job are individuals with background and experience in antenna and radar, pcb board and circuit design, CAD, physics.

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    I need someone that can look into my already designed geometry on solidworks and run a simulation for me, with all required parameters. I am having problems running a study on solidworks when trying to use the edge weld connector. I need all the values for a design project. Then I need to have an electrical circuit, however this is optional.

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    I want build electronic project its by Atmega 328p + voltage regaletor + oscilator + potintimeter + led To control the intensity of the led by potentimeter . by atmega 328p without arduino board i did the project by my self alone with arduino board . without any problem . but . when i disconnect the atmega 328p from arduino uno . and i put it dirictly on the circuit below . ita not working with me!! i attached my work below . circit and code if any one can help me . to run this project .pls help me Thanx

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    ...GPIO pins. At a certain time only of the two sources (i.e. IR or white) will be active. The brightness of the LEDs should be controllable via PWM. Your task is to design a PCB with the above requirements with... 1. Analyze the power consumption of the system -- these are high power LED and an RPi has limited current supply to peripherals - your design must take this into consideration. 2. Use only specific LEDs mentioned above. 3. Source other components (resistor/capacitor/mosfet/ic/etc) from Mouser India () ensuring that the component is in stock and can be dispatched As deliverable you will provide: 1. Circuit diagrams and schematics of the system. 2. CAD model (step file) of the assembled PCB so that it can be integrated with our mechanical designs. 3. De...

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    ...project, you will be : - selecting the MCU for the HW schematic, - Writing the firmware for the project - clear code with commentaries- ( details will be provided in chat) - Managing I2C buses, RS485, and USB - Developing a PC interface to communicate data with the board - Select the OLED display according to the specs - Draw schematic section for the OLED, buttons, RS485, MCU, and programing circuit this project will require: - 55 analog measurements ( I2C external ADCs will probably be used - part numbers will be shared afterward) - 20 analog Setting values ( I2C external DAC will probably be used - part numbers will be shared afterward) - 10 analog values will be set through a digital potentiometer (I2C dual digital potentiometers - part numbers will be shared afterward) ...

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    ...suitable circuit up to 2-3A 7. SIM card slot connected to the PCIe on the side of the board 8. ESP32 powered by second Step-Down from 5V to 3.3V, MP1584EN, or any suitable circuit up to 2-3A 9. Display Module 128X128 I2C 1.5inch SSD1327 128128 LCD Screen via I2C - GPIO22(SCL), GPIO21(SDA), powered by the ESP32 supply 10. NEO-M8N-0-10 connected to Serial 1 - GPIO12(RX),GPIO14(TX), powered by the ESP32 supply Bear in mind * ESP32 - UART0 is reserved for programming only, so RXD0/TXD0, GPIO0 & EN should be also on the side of the board. SIM7080G RX<---TX(GPIO17) ESP32 SIM7080G TX--->RX(GPIO16) ESP32 NEO-M8N-0-10 RX<---TX(GPIO14) ESP32 NEO-M8N-0-10 TX--->RX(GPIO12) ESP32 The PCB board should be compacted industrial standard. The project will be completed...

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    Circuit diagram required for off grid solar system 8kw solar and 76kwh storage 48v, output 6 x 3kw at 220v ac

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    Problem statement: creating a convenable circuit that satisfied these specifications – Supply voltage: VDD=2.2V – VIO=5.5VTemperature:-40C 25 C to 125C Operating Mode :Program/Program Verify-Read/Read Program. –Program Verify Read:10k (PVR Mode) – Read Mode :5k {Read_Programmed Cell& Read_Uprogrammed Cell – Current :<100uA. (Decreasing current from 168.4uA to 100uA – checking the sensing resistance and read current About Sensing resistance : Lower than 10K(PVR Mode), Lower than 5K(Read Mode), at all corner simulation About Read Current: Lower than 100uA at all corner original circuits (Block diagram) read current maximum value is 168.4uA, its over limitation creating a convenable circuit (Block diagram) that make the ...

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    I need 4-20mA signal isolation circuit with minimal components and cost. 4-20mA signal coming from the sensors (transmitter) and sampling by an ESP32.

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    Overall this is a LOW POWER USAGE time keeper that has 'TWO Triggers'. Project Functionality: - Keep track of time - Show time on OLED when toggle button/switch is in on position. (Stop ATMEGA sleeping/lower power usage when toggle button is up as well). - Set Date / Time with buttons(ESC/BACK, DWN, UP, ENTER) OPTIONAL:> Set Trigger Times. -Trigger #1 is for an external relay low to high voltage (OPTOCOUPLED/ISOLATED) When this trigger is active current should always be 'on'. - Trigger #2 is to replicate a 'button press', plain signal on the GPIO output pin. When trigger #2 is 'pressed' 20seconds later Trigger 1 will close off. I have designed a basic PCB you can see from the attached picture. It has the following components - ATMEGA NANO 3.0 ...

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    A circuit for following features - > MCB to Start/Stop Machine. > A button - When press it will start buring heater and stop at predefined Temperature sense by temprature sensor placed inside header > 2-3 LED Indicators > Connection for Custom designed segment Lcd Display > Temprature Sensor - For Heater Temperature *Heater Wattage will be 500watt to 1500watt

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