Voltage design trabalhos

Filtro

Minhas pesquisas recentes
Filtrar por:
Orçamento
para
para
para
Tipo
Habilidades
Idiomas
    Estado do Trabalho
    5,955 voltage design trabalhos encontrados, preços em USD

    ...bastante tempo. O projeto tem que der um custo baixo se possível e eficiência. the project is for student purposes. I want a program that control four stepper motors, 4 engines have to get together 20kg in total. The motors have to rotate 360 ° forward and backward. They will be controlled by remote control radio. I would like to know which components to use anger in the project, which the voltage source to use it, and a battery that lasts a long time. The project has to give a low cost if possible and efficiency....

    $87 (Avg Bid)
    $87 Média
    8 ofertas

    Possuo um laptop "Razer Blade" e preciso de uma bateria para substituir a original que foi danificada (a bateria não tem como ser reparada, precisa realmente ser trocada). Segue as especificações: NOTEBOOK - Razer Blade @ 2013 -Model No.: RZ09-0102 -Rated 19V === 7.9A -Product No.: 01021101 BATERIA - Li-ion Battery Voltage: DC 11.1V Capacity 6400mAh watt-hour rating: 71.04Wh Operating Temperature: 0ºC-45ºC A bateria tem que ser a padrão do notebook pois ela é interna e não externa. Segue em anexo fotos para mais detalhes. O QUE EU QUERO PARA O SERVIÇO: que encontrem onde a bateria poderá ser comprada, independente de ser em loja no Brasil ou exterior (website), mas que entregue em BRASÍ...

    $13 (Avg Bid)
    $13 Média
    1 ofertas

    A relay having 8 N/O and 8 N/C contact . We have to pusses 100mA Current through the contact and measure the contact resistance of the relay in mV(e.g 3.25mV or 4.30mV etc,when contact position). It will show in a 16X4 line LCD . at a time 8 will show in the 1st & 2nd line that is N/O, 3rd & 4th that is N/C. Display a...or 4.30mV etc,when contact position). It will show in a 16X4 line LCD . at a time 8 will show in the 1st & 2nd line that is N/O, 3rd & 4th that is N/C. Display as well as 8+8 pcs Dual color(G-R) Led should be connected. when in the permissible range(programmable by user) the led shows Green,beyond range is display (1st line A1, 2nd line 3.98V). Or (1st line A1, 2nd line 4.10V). A1 and voltage reading will blink as user programmed upto 4 volt Red l...

    $80 (Avg Bid)
    $80 Média
    7 ofertas

    Project of a carrier board for raspberry pi compute module 4. Requirements: - supply voltage: 24V - isolated rs-232/485 (configurable or both as a separated interfaces) - isolated canbus - 16x digital input 24V (expander over i2c) - 16x digital output 24V (expander over i2c) - sd card slot - 2x USB - slave USB - LEDs and buttosn (power status, reset, eMMC programming, etc) - standard RPI 40-pins header - compact size - optimization for JLCPCB Designer must be experienced with CM4 or other CM modules.

    $1576 (Avg Bid)
    $1576 Média
    23 ofertas

    looking to input a variable voltage of 0-5 volts and if a switch is on then the output voltage is limited to a adjustable limit voltage regardless of the input for example output becomes 0-2 volts. Example 3.5v in now outputs to 2.0v, 4v in = 2v out. When switch is off the output is linear to input. example 3.5v in = 3.5v out, 4v = 4v

    $279 (Avg Bid)
    $279 Média
    30 ofertas

    Learn how to use OpenDSS, an open-source software to simulate distribution power grid operation. 2. Use IEEE 123-node distribution system case for simulation and add 5 PVs with the capacity of 200 kW at 5 different nodes. 3. Make reasonable assumptions and calculate EV charging profiles 4. Simulate the impact of EV charging on distribution power system including load flow, voltage analysis, LTC operation, and voltage regulator. Reference: :~:text=OpenDSS%20is%20an%20electric%20power,grid%20i ntegration%20and%20grid%20modernization.&text=OpenDSS%20models%20traditional%20and%20adv anced,resources%2C%20assets%2C%20and%20controls

    $155 (Avg Bid)
    $155 Média
    7 ofertas

    We are working on an RaspberryPI application in python 3 which communicates with MSP430 device over I2C protocol. Every thing works as expected with Raspberry PI powered through regular USB. Issue We want to power RaspberPI using GPIO using pins 2 and 4 for 5v and GND. When power using GPIO RaspbianOS work fine with no lightning bolt on top right or low voltage warning however our python application doesn't communicate.

    $36 / hr (Avg Bid)
    $36 / hr Média
    12 ofertas

    The goal of this research is to improve the voltage profile and reduce the power loss in distribution system by incorporating DG. Pareto Based MOPSO is used to find the optimal size and location of the DG. The proposed method must be tested using 3 test systems, IEEE 14, 33 and 57-bus under two different conditions, with and without DG. The result data must be as in the attached file.

    $165 (Avg Bid)
    $165 Média
    3 ofertas

    High Voltage Marx Generator work on theory.

    $48 (Avg Bid)
    $48 Média
    8 ofertas

    Greenwire is looking for a Freelancer for the inspection and review of a batch of solar light located in Shenzhen. The total of the batch is two containers of solar light with LED, solar panels, lithium battery, 9 meter steel poles. You will have to do check on voltage, lighting, dimension, visual scratch, packaging on the following sample : Random sample : 5 poles : check the thickness, scratch, dimension, protection equipment 14 lights : check the lux, voltage of the battery, protection 14 panels : check dimension and scratch 1 ladder / packaging You will be required to fill a report and provide pictures. Profil : Diplomed of technician or engineer in electricity or lighting Speak fluent Chinese and English Tool required : Multimeter / Photometer (optional) / Thickness ...

    $237 (Avg Bid)
    Local
    $237 Média
    4 ofertas

    I run a small business called Just 'Cuz Robotics, LLC (), and I have been making and selling some simpler PCB products for the last few months. My circuit design knowledge is entirely self-taught and relatively basic. I am a mechanical engineer who knows a bit about electronics and a little electrical engineering knowledge but by no means an expert at PCB design or anything like that. I'm interested in selling some more complicated products like an adjustable output voltage regulator that can supply several amps of current, or a custom motor controller, which are well beyond my skill-set. I'd be willing to pay for an expert to provide some ongoing support in this regard if it meant I would have more, and higher quality products to sell.

    $21 / hr (Avg Bid)
    $21 / hr Média
    36 ofertas

    Hello, I want to build a vehicle with electric power, this vehicle should run in farm field (uneven surface with mud on it). I expect 1. Concept of electric vehicles 2. Which motor can be used 3. Which battery should be used (how much voltage, current and power these motor will consume) 4. How to change this system 5. How to turn left,or right (how to achieve navigation) 6. How much will be cost for this project I prefer some one from india as when I want to build prototype of it the components should be available in india.

    $155 (Avg Bid)
    $155 Média
    10 ofertas

    Looking to model a custom core + coil in a uniform AC magnetic field to simulate ground based magnetic field energy harvesters inductively coupled to high voltage power lines. Need to know the power losses in core, core resistance, coil resistance and induced open circuit voltage. Solidwork file of core provided.

    $204 (Avg Bid)
    $204 Média
    5 ofertas

    I want a code developed in CCS C platform which ZMPT101B PT is used to read AC Voltage wave forms( Peak value and RMS value) and display the value on a Serial Terminal. PIC16F690 is in the diagram but Other PIC micro can be used. I want a code that is free from Blocking Delays.

    $166 (Avg Bid)
    $166 Média
    8 ofertas

    ...Power Supply (SMPS) electronics? Then I might have a little project for you! I am looking for a 20W isolated DC to DC converter, most likely a Flyback or Sepic topology. Input voltage is between 13Vdc (from a LiPo) to 19Vdc (from a standard AC to DC power supply module). A common design must be drafted (all around 20W), preferably all with same core size, but with different output voltage: - A first version has a 24V fixed output voltage. - A second version has an output voltage adjustable between 10Vdc and 35Vdc, controlled by an MCU trough I2C alike or directly from the MCU’s DAC. - A third version has an output voltage adjustable between 10Vdc and 190Vdc, controlled by an MCU trough I2C alike or directly from the MCU’s DAC. Yo...

    $576 (Avg Bid)
    $576 Média
    20 ofertas

    On going work. Contractor needs help with estimates/submitting bids for labor only. Need assistance with estimating new bids for low voltage contracts. Be able to read plans and fully understand the scope of work. Medium- Large projects in NYC We receive bids from other contractors and would be the sub contractor of these bids. We also need help finding new projects to bid on. The breakdown of the bids would be calculating the labor hours to run cable and install security cameras, alarm devices, access control devices and telecom outlets.

    $18 / hr (Avg Bid)
    $18 / hr Média
    4 ofertas

    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 ...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 an...

    $39 (Avg Bid)
    $39 Média
    2 ofertas
    power work Encerrado left

    Consider a base power of 100 MVA for the following IEEE 6-Bus power system to, (a) Develop a model for the system to solve power flow using Gauss Seidel, accelerated Gauss Seidel, and Newton Raphson methods. Compare between the results. (b) Plot the power flow diagram for the system. (c) Assume an outage for each line in the system, solve power flow, and check the bus voltage limits, considering ±10% accepted variation. (d) Propose and validate a solution to mitigate any violated case in (c).

    $150 (Avg Bid)
    $150 Média
    1 ofertas

    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.

    $17 (Avg Bid)
    $17 Média
    6 ofertas

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

    $37 (Avg Bid)
    $37 Média
    11 ofertas

    We are running Solar Mini Grid Project in Remote areas of Jharkhand . We have 3 Phase power (415V)distribution line of more than 2.5Km from Solar Plant 25Kwp . But there is a sheer problem of Voltage drop at the end of distribution line while running any small inductive load . We tried for higher our cable gauge but didnt help . We need to get rid of these issue by optimal design of may be Voltage Regulatory Power Transformers/ Auto transformer type volt regulator etc

    $93 (Avg Bid)
    $93 Média
    11 ofertas

    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.

    $294 (Avg Bid)
    $294 Média
    15 ofertas

    We are looking person who can sketch this tow revision. And need follow up. for revisions. We will previse SLD (PDF version) you must need sketch it. This diagram was rejecte...And need follow up. for revisions. We will previse SLD (PDF version) you must need sketch it. This diagram was rejected because: 1. Please ensure that the inverters can handle the voltage as designed. Currently with the setup in the three-line diagram the inverters are hooked phase to phase and the inverter output voltage is 277V while the phase to phase voltage of the service lines is 480V. Please update the design such that this issue is ameliorated. 2. The other issue is since these inverters are single phase and going on to a 3 phase system a confirmation that they meet the IEEE ...

    $8 / hr (Avg Bid)
    $8 / hr Média
    6 ofertas
    Custom step up Encerrado left

    Need a custom voltage booster/step up transformer designed and built.

    $156 (Avg Bid)
    $156 Média
    3 ofertas

    I want PCB of high voltage board with this characteristics: input power 5000 watt. output voltage 20-40 K v frequency 20-50 K Hz designer should specify the element part number or characteristics that to be soldered on the board.

    $179 (Avg Bid)
    $179 Média
    18 ofertas

    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)
    $527 Média
    9 ofertas

    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

    $38 (Avg Bid)
    $38 Média
    9 ofertas

    a source code based on STM32Duino to run the Microcontroller IOs via internal voltage regulator of STM32L4x chips. These are mandatory: 1- Source code runs in Arduino environment using STM32Duino core (1.6 or 1.9) 2- IO should run on regulated 2.50V on a wide range of supply from 1.8V to 3.3V 3- no other components except microcontroller.

    $119 (Avg Bid)
    $119 Média
    7 ofertas
    Circuit design Encerrado left

    Schematic for circuit to convert 3.3 V dc p/s to constant current with a max voltage limit

    $422 (Avg Bid)
    $422 Média
    22 ofertas

    Integration of IOT devices and embedded systems along with an application for tracking parameters like , battery voltage, battery charging/ discharging status, panel voltage, panel current, panel power, grid voltage, grid current and grid frequency, output voltage, output current, time, date time of charge and time of discharge and several other can be accessed in real time. An application for users to view parameters on the go. The console must display the name of the company (JHA BABA PROJECTS PRIVATE LIMITED) and the users name along with the real time parameters.

    $700 (Avg Bid)
    $700 Média
    13 ofertas

    DC and marx generator and high voltage work.

    $45 (Avg Bid)
    $45 Média
    12 ofertas

    High voltage power supply unit was designed for cockpit display unit for INDIAN Navy sea king aircraft.

    $14 / hr (Avg Bid)
    $14 / hr Média
    8 ofertas

    ...V(inv1_out). 2. What is your observation regarding the propagation delay of the output voltage waveform of the third inverter V(out) compared to that of the first inverter V(inv1_out)? 3. Do an LTspice transient analysis of the circuit shown in Fig. 8.8. 4. After simulating the circuit, examine at the V(X), V(Y), and V(out) waveforms. Find the truth table.22  What logic gate does this circuit implement? 5. Try to justify the truth table you have obtained based on your understanding of how complementary switches (PMOS and NMOS transistors) work. Hint: A high input voltage activates an NMOS transistor (effectively making its channel resistance very low, hence serving as a closed switch). In contrast, a low input voltage activates a PMOS transistor (effectively making...

    $32 (Avg Bid)
    $32 Média
    8 ofertas

    FREELANCER MUST TELL ME COST OF PROJECT AFTER I GIVE FULL DESCRIPTION OF WHAT'S REQUIRED...... Seeking help to complete idea for dual voltage output regulator with chosen IC chip.... If you have experience with automotive alternator voltage regulators, I will go into detail when I am contacted. Only interested in speaking with professionals with expertise in this area. Will provide data sheet and project description at appropriate time.

    $172 (Avg Bid)
    $172 Média
    11 ofertas
    Trophy icon Small custom electronic board in box Encerrado left

    ...vinyl records using stroboscopic flash light to generate the desired effect. Software and control board design have been successfully achieved by two great freelancers and we now move to the pre-production step, very exiting! Important for me when you reply is: - Costs - How many units - Timelines - Shipping fees estimate The box should ideally not be too large, light and sealed. On the outside the needs are: - Standard 2.1 mm female DC connector/plug for the power supply (110-240v AC input, 12v DC output with roughly 2A and 20W) - Main on/off switch - A female plug for the output (LED will be 18W or less) and corresponding male plug I can fix to the LED wire - Access to the voltage regulator controlling the flash frequency that won't be used much once set to the ...

    $250 (Avg Bid)
    Garantido
    $250
    8 inscrições

    Hi,I need a model of the Adafruit INA260 High or Low Side Voltage, Current, Power Sensor breakout board. Modeling must be performed in Solidworks or Altium

    $11 (Avg Bid)
    $11 Média
    2 ofertas

    ...resistors based an external controller. The controller then can either send in a 0-10V signal (0V = switch off and 10V = max power) or through an ethernet connection, write a value to control that power. I am thinking of MOSFETS switching on/off at a given frequency and having their duty cycles controlled by either the 0-10V input or by the register value. Note that the output waveform of the voltage or current does not have to be perfect since it will only control a simple resistive load. ---- Added info: Task: Control the power consumption of a 240 Volts AC resistive load (such as an electric water heating resistor). Context for use: Say you have a 230 VAC circuit with a circuit breaker rated at 15 Amps. On that circuit, there are several appliances including a 2000 Watts (...

    $434 (Avg Bid)
    $434 Média
    18 ofertas

    I am working on a piezoelectric generator harvestor, I have connected some piezostacks together and the voltage comes to about when I connect a diode rectifier both the ac input and DC output reduce to a very very small value.I need help identifying the problem

    $12 / hr (Avg Bid)
    $12 / hr Média
    3 ofertas

    Hi Saddam G., I noticed your profile and would like to offer you my project. We can discuss any details over chat. am working on a piezoelectric generator harvestor, I have connected some stack together and the voltage comes to about when I connect a diode rectifier both the ac input and DC output reduce to a very very small value.I need help identifying the problem

    $10 (Avg Bid)
    $10 Média
    1 ofertas

    ...read from J1939 Protocol. -If the S3 value is above 0 ,and the value read from the CAN-BUS is > 70C , a signal will be sent from the RS422 port to the user interface.(LED2 will be on) -The voltage value will be read from the analog input on the main controller. If it is over 27V, all relay outputs will be off. User Interface Requirements -The design will be made using minimum space. -There will be an on/off switch in the system, and when it is turned on, main controller and user interface will be active. -When discrete 0 signal comes to discrete input on the user interface,all leds will turn off. -The voltage value will be read from the analog input on the main it is under 22V,the third led will be turn on. -All relays will be active between 22-27 Volts, they w...

    $171 (Avg Bid)
    $171 Média
    13 ofertas

    I have an Arduino Uno and a Data Logging Shield (P/N: 1141) from AdaFruit and a "9-DoF" Accelerometer / Gyroscope / Magnetometer (LSM9DS0) Breakout Board (P/N: 2021) whic...have used the Data Logging Shield to log temperatures and voltages for other projects, but I can't seem to get the Accelerometer & Gyroscope data out of the Breakout Board and log it to an SD Card on the Data Logging Shield. The examples on AdaFruit are so very different (written years apart) that I can't seem to get them to work together. I would like to sample the Accelerometer and Gyroscope voltage outputs (6 voltages) X-number of times per second (X being a parameter set at 1 to 50, for example), average those 1- 50 data samples over 0.5 or 1 second, and record the averaged data at a ...

    $37 (Avg Bid)
    $37 Média
    4 ofertas

    Design an 8-bit Addressable Latch with built in 1 of 8 Decoder. The circuit is composed of three stages, the decoder, latch system and a buffer output. The device has four modes of operation. In the addressable latch mode, the signal on DATA IN is written into the addressed latch. The addressed latch follows the data input with all non−addressed latches remaining in their previous states. In the memory mode, all latches remain in their previous state and are unaffected by the Data or Address inputs. In the one−of−eight decoding or demultiplexing mode, the addressed output follows the state of Data In with all other outputs in the LOW state In the Reset mode, all outputs are LOW and unaffected by the address and data inputs. You can choose one of the following logic...

    $25 (Avg Bid)
    $25 Média
    1 ofertas

    Design an 8-bit Addressable Latch with built in 1 of 8 Decoder. The circuit is composed of three stages, the decoder, latch system and a buffer output. The device has four modes of operation. In the addressable latch mode, the signal on DATA IN is written into the addressed latch. The addressed latch follows the data input with all non−addressed latches remaining in their previous states. In the memory mode, all latches remain in their previous state and are unaffected by the Data or Address inputs. In the one−of−eight decoding or demultiplexing mode, the addressed output follows the state of Data In with all other outputs in the LOW state In the Reset mode, all outputs are LOW and unaffected by the address and data inputs. You can choose one of the following logic...

    $132 (Avg Bid)
    $132 Média
    9 ofertas

    Design an 8-bit Addressable Latch with built in 1 of 8 Decoder. The circuit is composed of three stages, the decoder, latch system and a buffer output. The device has four modes of operation. In the addressable latch mode, the signal on DATA IN is written into the addressed latch. The addressed latch follows the data input with all non−addressed latches remaining in their previous states. In the memory mode, all latches remain in their previous state and are unaffected by the Data or Address inputs. In the one−of−eight decoding or demultiplexing mode, the addressed output follows the state of Data In with all other outputs in the LOW state In the Reset mode, all outputs are LOW and unaffected by the address and data inputs. You can choose one of the following logic...

    $25 (Avg Bid)
    $25 Média
    2 ofertas

    ...project that we do not want released until we bring the product to market. The designed controller will be able to take a variable DC power input from two micro hydro alternators (3 phase AC generators through a bridge rectifier) and convert it into a singular DC power supply and then control the output voltage and current of the power through 3 outputs which can be programmed in their output to suit specific loads. If you think you have what it takes to assist us to engineer a suitable design, even if you can only prove it's function through simulation, but can provide accurate drawings so that we can approach a PCB manufacturer to build the prototype, then please contact us. If you have the ability to help develop the controller as well as produce the prototype...

    $45 / hr (Avg Bid)
    $45 / hr Média
    18 ofertas

    Hi dear, I have routine projects related to electrical and electronics. I wanna hire electrical/electronics engineer for long term so that we can do buisness on longterm basis. For now i have below project: I want a Li on battery BMS with passive balancing. The systems will consist of 3 lion cells connected in series, The BM...hire electrical/electronics engineer for long term so that we can do buisness on longterm basis. For now i have below project: I want a Li on battery BMS with passive balancing. The systems will consist of 3 lion cells connected in series, The BMS must monitor and display the voltages, currents, Temperature, SOH and SOC and it must do passive balancing between cells and bring them to the same voltage level. You can use Arduino or microcontroller as you ...

    $30 (Avg Bid)
    $30 Média
    9 ofertas

    Hi I need someone who can design an earthing system for a 230 KV high voltage substation using the Electrical Power System Analysis 9ETAP) software.

    $172 (Avg Bid)
    $172 Média
    7 ofertas

    I have a 1000v max. DC power supply and a 20vpp function generator. I need a circuit that can switch high voltage at frequencies starting from 1hz to at least 1mhz using the signal from the function generator. Minimum requirement is replication of AC square waves at high voltage. Ability to manually adjust the offset of output signal and adjust the current will be beneficial. The circuit has to be capable of outputting upto 150w at peak voltage and handle operation for long hours.

    $269 (Avg Bid)
    $269 Média
    13 ofertas

    Hi If you are fluent in Circuit Design and PCB design and firmware for the same. If you are able to fulfill a design that passes below mentioned demands - please contact me for a discussion. We are looking for help with designing a PCB utilizing a Shunt to measure Ampere (and voltage) with Bluetooth sender. It should be very high measuring accuracy, reliable BLE circuit, temperature sensor to adapt calculations according to shunt temperature. User settable/configuration of battery storage capacity (Wh) to be stored onboard Onboard calculation of state of charge ( Wh minus/plus of in/out measured W) Data calculation and BLE transmition minimum every 0.2 frequency Data acquiring of Volt and Ampere and temperature Onboard calculation of the other needed data by...

    $1448 (Avg Bid)
    $1448 Média
    29 ofertas