Build Variable PWM generators with display using remote switch inputs

The project is to build an in cab controller generating a PWM signal to control a hydraulic valve. Once the first unit is proven, a quantity will be required, with potential for ongoing production.

External proximity sensor switches will send a signal to the controller to tell it to either increase, or decrease the PWM duty cycle. The PWM frequency and the rate at which the duty cycle will change should be adjustable, preferably with an internal adjustment such as a screw potentiometer. The maximum and minimum duty cycle should also be adjustable. Raw unregulated power supply will be 12-14V (vehicle battery). The in-cab display will show the operator the present duty cycle, plus allow the operator to manually override the controller to set the duty cycle manually if required. It should also indicate (eg via LEDs) when the + and - rate adjustments are happening.

In summary, the Inputs will be: 12-14V DC unregulated power; Common/earth; Switch signal for "Increase"; Switch signal for "decrease". Outputs will be: Power and Common for "Increase" switch; Power and Common for "Decrease" switch; PWM output to control valve.

Ideally the display should be customised for this application, including branding. It may require a customised plastic housing.

Circuit boards are available which could be configured to perform these functions, such as these: [login to view URL]

Beceriler: Elektronik, Elektrik Mühendisliği, Mikrodenetleyici, Mühendislik

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İşveren Hakkında:
( 0 değerlendirme ) Perth, Australia

Proje NO: #26354888

Bu iş için 18 freelancer ortalamada $175 teklif veriyor


Hello sir, I have experience in designing electronics circuits and can develop hardware compatible smartphone and PC based apps. I also have done a lot of IoT projects and can transform your idea into a fully working Daha Fazla

$200 USD in 7 gün içinde
(53 Değerlendirme)

I have over 35 years experience as an electronic design engineer, please see my profile for more details The current price and timescales are only place holders to allow me to communicate with you Please can tell me w Daha Fazla

$250 USD in 7 gün içinde
(25 Değerlendirme)

Dear Client. I have read your description carefully about==PWM GENERATOR I am Muhammad and I am an Electrical engineer having 5+ years of actual experience in Embedded System Design based on Power Supply System Design Daha Fazla

$40 USD in 2 gün içinde
(94 Değerlendirme)

Dear Sir, I am an expert in embedded systems with 20 years of experience in Firmware development, Prototyping and PCB Layouts. I have developed several projects in the past based on 8-bit, 16-bit and 32-bit Daha Fazla

$250 USD in 10 gün içinde
(58 Değerlendirme)

We will do your PWM work Hi my Professional Aim is: (Services then Solutions then Satisfactions) I hope you are [login to view URL] an experience in this field from last 5 years i am sure i can do it perfectly with in a time and Daha Fazla

$99 USD in 7 gün içinde
(34 Değerlendirme)

Best Valve Control Design Expert at your doorstep! Dear Client, I couldn’t stop myself from bidding after going through the description as they are an exact match with my skillset and experience. I have experience in Daha Fazla

$180 USD in 2 gün içinde
(7 Değerlendirme)

Dear employer, I hope you are doing good. I am ELECTRICAL/ELECTRONICS ENGINEER from India with 4+ years of experience in designing PCBs. Familiar with various CAD tools including tools preferred by Manufacturers. I am Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% USD
(12 Değerlendirme)
(19 Değerlendirme)

Hello dear project owner. Thank you for posting that project. You can read about me below. About your project–I am doing schematic, PCB and SW\FW design every day (I design and make industrial electronic equipment – Ul Daha Fazla

$30 USD in 7 gün içinde
(16 Değerlendirme)

Hi, I have read your project description carefully, and I am very confident about your project. I have good experience with projects like yours. Let me discuss about your project. I will complete your project in a shor Daha Fazla

$50 USD in 2 gün içinde
(2 Değerlendirme)

Hello, I am an electronics and telecommunication engineer and I am quite experienced with hardware and embedded systems design. I just finished a project that follows the input signal that is implemented to it. It crea Daha Fazla

$170 USD in 7 gün içinde
(4 Değerlendirme)

Hi! I'm an Electronic Engineer from Argentina. I have almost 5 years of experience working in the circuit design industry (both PCBs and integrated circuits) and I think I would come in handy for this project! I've wo Daha Fazla

$250 USD in 7 gün içinde
(1 Yorum)

Hello Thank you for your job posting about PWM generator. As I have good experiences in this field, so I am very glad to meet your project. I have the energy and wisdom to design products for today’s technical challen Daha Fazla

$140 USD in 7 gün içinde
(1 Yorum)

Hello, We are 7 year experienced hardware prototype team with embedded, hardware and software engineer. We develop commercial products for agri, solar, consumer sector using IoT, machine learning technology. We also Daha Fazla

$140 USD in 7 gün içinde
(2 Değerlendirme)

Dear Sir, I am Automation & Electrical Engineer and i have 12 years of experience in industry and i am ready to perform the job you are offering . Best Regards

$140 USD in 5 gün içinde
(0 Değerlendirme)

Expert in building embedded based devices . I can build this for you. Work experience of 20+ years in embedded .

$500 USD in 7 gün içinde
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Hi, "I have gone through your description. "This is my area of specialization, i can get it done perfectly well. Please ping me in person. I can help you to complete all tasks. I and my team have hands-on experience i Daha Fazla

$140 USD in 7 gün içinde
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Hi, we can implement your project using microcontroller, we can generate pwm and can be adjustable as you want using switches, potiemoter,..... and produce up to 20amp. We can also display what you want. We can show y Daha Fazla

$222 USD in 10 gün içinde
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