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Abdur-Rafiq M.

@abdurRafiqM

annual-level-three.svg
5.0
5

2.9

2.9

100%

Electrical & Electronics Engineer, PCB Designer

$15 USD / Hour

・

Flag of

Nigeria (11:31 PM)

・

Joined on January 24, 2025

・

1 Recommendation

$15 USD / Hour

・

I am an experienced Electrical and electronics Engineer specialized in PCB Design, Circuit Design, Circuit simulation and Professional Consultation. I am well experienced in the use of tools like ALTIUM Designer, KICAD, EASYEDA, Multisim, LTSPICE etc. I deliver my work to the taste of my client and as early as needed Here is a link to my portfolio [login to view URL]

Verifications

On time

100%

On budget

100%

Accept rate

100%

Repeat hire rate

22%

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Portfolio

Portfolio

13682970
The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

13682962
The design is a 60W ACDC converter designed to meet CE certification standards. The board converts a 210VAC-230VAC from the an AC source to a 24VDC @ 2.4A sutable for appliances. The design uses a flyback topology, SMPS transformer and optocopular to obtain galvanaic seperation of the input and output sections for the protection of the output.

60W CE certified AC DC Converter

13682955
The design is a 3.3V and 4.1V Multi output DCDC converter that coverts 5V- 24V DcC to 2 different output(3.3V and 4.1). The board can be used to power deevices that requires 3.3V for operation and can alos serve as a charger for 4.2V batteries

Mult Output DC-DC Stepdown Converter

The design is a 3.3V and 4.1V Multi output DCDC converter that coverts 5V- 24V DcC to 2 different output(3.3V and 4.1). The board can be used to power deevices that requires 3.3V for operation and can alos serve as a charger for 4.2V batteries

Mult Output DC-DC Stepdown Converter

13109691
The design features a rectifier that converts AC input into a 310DC output which is then converted into 200V but can also be varied. it also include regulators that produce 12 and 5 V to power the gate and MOSFET driver for the pulse generator. the application of this design varies from different use including High Voltage generation, pulse generation and so on.

200V PULSE GENERATOR DESIGN

The design features a rectifier that converts AC input into a 310DC output which is then converted into 200V but can also be varied. it also include regulators that produce 12 and 5 V to power the gate and MOSFET driver for the pulse generator. the application of this design varies from different use including High Voltage generation, pulse generation and so on.

200V PULSE GENERATOR DESIGN

13109683
The project is the design of a STM32 controlled board that plays music from an SD card and also control 2 servo motors based on the beats from the music. The STM32 models reads the files on the SD card and plays it out through a speaker, it also analysis the wav file fr the music and controls the servo motors based. The project crosses across the fields of Electronics Design, Audio equipment design, PCB design, Signal processing, embedded system etc.

STM32 Music player with servo contro

The project is the design of a STM32 controlled board that plays music from an SD card and also control 2 servo motors based on the beats from the music. The STM32 models reads the files on the SD card and plays it out through a speaker, it also analysis the wav file fr the music and controls the servo motors based. The project crosses across the fields of Electronics Design, Audio equipment design, PCB design, Signal processing, embedded system etc.

STM32 Music player with servo contro

13682970
The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

The design featuress chematic and 2-layer PCB for a compact DMX512 controller board. The board supports DMX send and receive, provide galvanic isolation for the DMX line, and connect multiple external modules using JST-XH 2.54 mm connectors.

Arduino DMX Shield

13682962
The design is a 60W ACDC converter designed to meet CE certification standards. The board converts a 210VAC-230VAC from the an AC source to a 24VDC @ 2.4A sutable for appliances. The design uses a flyback topology, SMPS transformer and optocopular to obtain galvanaic seperation of the input and output sections for the protection of the output.

60W CE certified AC DC Converter

13682955
The design is a 3.3V and 4.1V Multi output DCDC converter that coverts 5V- 24V DcC to 2 different output(3.3V and 4.1). The board can be used to power deevices that requires 3.3V for operation and can alos serve as a charger for 4.2V batteries

Mult Output DC-DC Stepdown Converter

The design is a 3.3V and 4.1V Multi output DCDC converter that coverts 5V- 24V DcC to 2 different output(3.3V and 4.1). The board can be used to power deevices that requires 3.3V for operation and can alos serve as a charger for 4.2V batteries

Mult Output DC-DC Stepdown Converter

13109691
The design features a rectifier that converts AC input into a 310DC output which is then converted into 200V but can also be varied. it also include regulators that produce 12 and 5 V to power the gate and MOSFET driver for the pulse generator. the application of this design varies from different use including High Voltage generation, pulse generation and so on.

200V PULSE GENERATOR DESIGN

The design features a rectifier that converts AC input into a 310DC output which is then converted into 200V but can also be varied. it also include regulators that produce 12 and 5 V to power the gate and MOSFET driver for the pulse generator. the application of this design varies from different use including High Voltage generation, pulse generation and so on.

200V PULSE GENERATOR DESIGN

13109683
The project is the design of a STM32 controlled board that plays music from an SD card and also control 2 servo motors based on the beats from the music. The STM32 models reads the files on the SD card and plays it out through a speaker, it also analysis the wav file fr the music and controls the servo motors based. The project crosses across the fields of Electronics Design, Audio equipment design, PCB design, Signal processing, embedded system etc.

STM32 Music player with servo contro

The project is the design of a STM32 controlled board that plays music from an SD card and also control 2 servo motors based on the beats from the music. The STM32 models reads the files on the SD card and plays it out through a speaker, it also analysis the wav file fr the music and controls the servo motors based. The project crosses across the fields of Electronics Design, Audio equipment design, PCB design, Signal processing, embedded system etc.

STM32 Music player with servo contro

5.0 · 5 Reviews
Reviews
User Avatar

[SMC003] EasyEDA Schematic Review • $115 USD

Abdur-Rafiq is smart and persistent. Highly recommended

Albert M.

@albertmoreira

•

Flag of

Salvador, Brazil

•

6 days ago

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KiCad/EasyEDA PCB Files for JLCPCB • ₹6,000 INR

Very hard working and very kind in communication. He understands the requirements and does hard work to deliver the project on time. He also understands the circuit and helps a lot to get PCB from JLCPCB

Amit Kumar M.

@pctknp

•

Flag of

Kanpur, India

•

10 days ago

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B

PCB Designer for Custom DMX512-Arduino Controller • €50 EUR

It was a great experience working with him. He communicated very clearly throughout the entire project, always showing progress in small, well-defined steps and regularly asking for feedback before moving on. That made the whole process transparent and easy to follow. He paid close attention to technical details and implemented every change exactly as discussed. I can fully recommend him and would be happy to work with him again on future projects.

Christian M.

@BruderTycho

•

Flag of

Hofheim, Germany

•

17 days ago

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S

Design Valve Controller PCB • ₹3,000 INR

5/5 — Excellent PCB Designer and Collaborator I had a great experience working with Abdur-Rafiq M He is technically strong, detail-oriented, and very responsive throughout the project. Highly recommended for anyone looking for a reliable and skilled PCB designer who delivers quality work on time.

Swaroop Q.

@swaroopq

•

Flag of

Bengaluru, India

•

1 month ago

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Digital Circuit for Radio Control System • ₹1,000 INR

Very professional in his work and excellent communication will work again

Bacardi I.

@Bacardi700

•

Flag of

Bengaluru, India

•

5 months ago

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Experience

Pcb designer

Jul, 2023 - Present

•

2 years, 3 months

Fiverr

Jul, 2023 - Present

•

2 years, 3 months

I work as a freelance PCB designer designing variuos types fo electronics for personal, consumer and industrial applications

Jul, 2023 - Present

•

2 years, 3 months

Education

University of Ilorin

2021 - 2025

•

4 years

Electrical and Electronics Engineering

Flag of

Nigeria

2021 - 2025

•

4 years

Qualifications

PCB Design

2024

Altium Academy

Detailed course on electronics design, PCB design and manufacturing with the use of Altium designer

2024

Certifications

Analog Electronics - Level 1

Analog Electronics

P

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