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Circuit Design Electrical Engineering Electronics Matlab and Mathematica PCB Layout
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$25 USD/oră
zaporizhzhia, ukraine
$25 USD/oră
Momentan, aici este ora 7:19 p.m.
S-a înregistrat în data de septembrie 8, 2016
1 Recomandare

Daniil R.


4,6 (31 recenzii)
$25 USD/oră
zaporizhzhia, ukraine
$25 USD/oră
98 %
Proiecte finalizate
94 %
Conform bugetului
68 %
La timp
25 %
Rata de angajare repetată

Embedded electronic hardware and software.

Hi:) I represent a small team of freelancers with experience in various company. Now our team has partially moved to Poland. Some our engineers have over 20 years of experience and have seen the full life cycle of products including technical requirements, design, manufacture, modernization. Our engineers have experience in the development of devices for the oil and gas and aviation industries, including devices for hazardous areas and for harsh environments. We do not just offer our customers working solutions. We try to offer the best possible solutions. That is, such solutions that no one else can offer better solutions. In our competence: 1. Modeling physical processes in MATLAB and ANSYS 2. Development of devices including microcontrollers, FPGAs, precision analog circuits, DC / DC and AC / DC, CAN / WiFi / MODBUS / Bluetooth / Ethernet / PoE /USB3+PD , RF, IEC62109-1, IEC60730-1, FCC PART 15. 3. Programs for microcontrollers / PC / Linux / Smartphone 4. PCB assembly / debugging of devices 5. Drawings of housings and printing on a 3D printer. Our main directions are points 2 and 3
Freelancer PCB Layout Designers Ukraine

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Articole în portofoliu

20V output
Input 12V to 28V
The choice of transistors is optimized based on minimizing their heating over the entire input voltage range.
Power capacitors are selected based on the required RMS current in the entire input voltage range.
Track widths are optimized to minimize heating based on the RMS current in each track.
Buck-Boost DC DC convertor 340W
Simulation of the navigation algorithm of the robot manipulator.
Simulation of the navigation algorithm of the robot manipula
Simulink MATLAB model of MPPT algorithm of partial shading solar panels.
Simulink MATLAB model of MPPT algorithm.
HUB + USB 3.0 + PD (Power Delivery, up to 100W=20V*5A) + Sound + Charger for Li-ion + BMS for Li-ion
HUB + USB 3.0 + PD + Sound + Battery
We made electronics for this conveyor scales in 2000
conveyor scales
We made electronics for this conveyor scales in 2000
conveyor scales
We made electronics for this conveyor scales in 2000
conveyor scales
The  SAA-14 is a  microprocessor based digital ignition system for application to large natural gasfueled engines.
Ignition Systems, zone 2 - video


Modificările au fost salvate
Se afișează 1 – 5 din 31 recenzii
Filtrează recenziile în funcție de: 4,8
€190,00 EUR
He quickly understood requirements of the task and also offered a few alternative solutions. The job was done in an exact and timely manner. I recommend hiring this engineer.
Electronics Electronic Design
Steagul Zvonimir R. @zrudomino
11 zile în urmă
$450,00 USD
Be patient and listen. Daniel is a team player and bring his value and expertise to product. Looking forward to accept the protypes and approve production
Electronics Electrical Engineering PCB Layout Product Design Circuit Design
Steagul Gilad R. @vw728151vw
11 luni în urmă
$2.300,00 USD
In no case do I advise this performer, the work was delayed for 3 months, instead of the promised time frame of 1 month. 20% of the work was done, this performer constantly changed the working conditions. As a result, they began to demand an additional increase in the budget, explaining this by the fact that they did not fit into the declared one. In general, money spent and time spent. It is strongly not recommended to contact this Freelancer.
Engineering PCB Layout
Steagul Andrii A. @Voce99
1 an în urmă
€8.958,00 EUR
His knowledge is extremelly good. He delivered a difficult project without any bugs and in a good budget. There are only 2 issues that Daniil has to improve, his communication and his deadlines. He delivered the project with a big delay, but even so i would coopperate with him and his team again.
Verilog / VHDL Microcontroller PCB Layout Circuit Design FPGA
Steagul Joseph B. @JosephBel
2 ani în urmă
$2.250,00 USD
nice people
Embedded Software
Steagul R.Ravichandran R. @senlogic
3 ani în urmă



aug. 2014 - Prezent
STM32, AtMega, FPGAs, Nios, precision analog circuits, DC/DC and AC/DC, CAN/WiFi/MODBUS/SMbus/Bluetooth/Ethernet/PoE /USB3+PD, RF, MPPT, BMS, Battery Charger, Rfid, SIM900, ANSYS, Maple, MATLAB, MULTISIM, Altium, IEC62109-1, IEC60730-1, FCC PART 15. Theoretical basis for DCDC: 1) loss of transistors when switching 2) Influence of efficiency on duty cycle D 3) Transfer function of the power part Experience in buck, boost, buck-boost, sepic, ZVS development. Power from less milliwatts to 6 kW


aug. 2002 - iun. 2014 (11 ani, 10 luni)
I developed a system of ignition for stationary internal combustion engines This design used on gas-producing enterprises. I have developed a telemetry system for strain measurement of aircraft engine blades. A new method was introduced for metrological certification of telemetry system. In this method we used Fourier transform and band spectrum. Cortex-M3 and Cyclone IV had used for these developments.


aug. 1994 - iun. 2001 (6 ani, 10 luni)
I designed electronic equipment on Atmel and Analog Device 8051 processors, with the core 8051. I designed a series of automotive, conveyor scales. Also it developed a system for measuring the concentration of alkali. In this system, data is recorded on the PC. PC program was written in Delphi.


Theoretical Physics, MA

Dnipropetrovs'kij Nacional'nij Universitet, Ukraine 1999 – 2000
(1 an)

Bachelor of Applied Science (B.A.Sc.), Solid State Physics | Zaporizhzhya National University

Zaporizhzhya State University, Ukraine 1994 – 1999
(5 ani)


A new method for verification frequency response of dynamic strain amplifier used in strength tests.

We propose a new method for checking the frequency response of strain amplifier used in research and testing in the aerospace industry, in particular in the development of aircraft engines. The proposed method is characterized by versatility, extended frequency range, the ability to check the sensitivity of strain amplifier with an error of 0.1%, simplicity. The proposed method was tested in Motor Sich JSC. The proposed method can be the basis of a automatic test system of strain amplifier.

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PCB Layout 32 Electronics 31 Circuit Design 31 Electrical Engineering 30 Matlab and Mathematica 24

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