Hi:) I represent a small team of freelancers with experience in various company. Our team consists of specialists with rates from 4 usd/hour to 20 usd/hour. We try to balance the workload of our team so that the development costs the least for the customer. 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
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.
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.
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
авг. 2002 - июн. 2014 (11 лет, 10 месяцев)
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.
авг. 1994 - июн. 2001 (6 лет, 10 месяцев)
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.
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.