Design a circuit to control welder amperage

$30-250 AUD

Completed

Posted

about 3 years ago

$30-250 AUD

Paid on delivery

I want to replace a welder control that consists of momentary on micro switch and a potentiometer that acts as a voltage divider. The micro switch activates a number of things in the welder but is essentially just a switch that operates on small voltage (sub 5v and low current) The potentiometer is a voltage divider to control the welding current from 10 to 200amps. the potentiometer is just in the control circuit and does not see the welding current it is also very low current and less than 5v The aim of this project is to mimic this circuit by designing a circuit either analogue or with use of Arduino where the only input is a force sensing resistor. By pressing the force sensing resistor the welder switch is activated and then as the FSR is pressed harder the welding current is increased.

Electronics

Electrical Engineering

Microcontroller

Circuit Design

Arduino

Project ID: 29893584

About the project

12 proposals

Remote project

Active 3 yrs ago

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Awarded to:

@ashinn

$0 AUD in 7 days

5.0

(7 reviews)

2.7

12 freelancers are bidding on average $143 AUD for this job

@Adrianopl

Hi, I've read your description and I think that we should try a proof of concept first using an arduino board so we can change the code to calibrate the force sensor and give you the best control experience, after that if you want we can design a custom circuit and PCB for production. Let me know if you have any questions. Best regards,

$250 AUD in 15 days

5.0

(18 reviews)

6.2

@Mauricio768

Dear Client. I have just read your job description and your project is really interesting to me. I have many experiences working for 12+ years with Circuit design, PCB design, manufacturing functional prototyping with firmware programming and testing especially. Here are some of the experiences that I built ago. - Schematic and PCB design and Layout using Altium Designer, Eagle. - high-speed, flexible, Multi-Layer PCB design. - DDR, motor control, power converter, Keyboard, POE, UART, SPI, I2C, RF, BLE, LED lighting design. - ARM, DSP, MCUs, Arduino, Raspberry pi experiences. I am sure I can complete it on time with high quality. If you hire me, I can start to work for your job immediately. I'll do my best for you. Thank you for your time. Best regards.

$250 AUD in 7 days

4.9

(32 reviews)

6.0

@Devpro11

Hello, I am using LTspice, Mutisim, and proteus for circuit simulation. We can help you solve the circuit problem and provide you with a professional report on this. i will do our best to help you. Salute.

$200 AUD in 7 days

4.9

(33 reviews)

5.9

@Ahmed8033

Hi there, I am electronics engineer and have a lot of experience in designing Microcontroller based circuits. I have read your description and have completely understood what you want to do. I can do your task using Arduino. Feel free to inbox me for further discussion.

$170 AUD in 2 days

4.8

(48 reviews)

5.5

@adilme

Hello, I have a vast experience in applied projects working on various projects especially in electrical and electronics domain. I'm expert in circuit design and Arduino interfacing with strong mathematical and statistical background, have good flexibility for solve your project. I have read your project description and I can help you. Please send me some more details of your project. Looking forward for your reply in chat. Thanks for your attention.

$140 AUD in 7 days

4.9

(12 reviews)

4.5

@codereaper314

Hi, Looks like an interesting project. I will need to know more about the specifications of the micro switch and the potentiometer you are describing. Additionally, have you selected the FSR that you want to use for this project? Yeah, for initial concept testing and prototyping an Arduino Uno will be good. Let's discuss more on your welder, if you are interested.

$133 AUD in 7 days

4.8

(5 reviews)

2.0

@arduinoid

With lot of experience in welding process such as flux core arc welding and submerged arc welding we knew that current from welding machine are critical point to achieve mechanical bonding between structure. With this consideration we are confident to deliver a module that reliable and stable with your project in term to control current on welding. We are a group of engineers who has a passion for electronics and decided to create a start-up based in Jakarta Indonesia to assist you in various kind of electronic project, information sharing and deliver it worldwide. We have more than 8 years of experience in code Arduino-based projects, electronics PCB design, and manufacturing.

$220 AUD in 7 days