Nima Zahraei verfügbar

Nima Zahraei

Hardwareentwickler - Softwareentwichler - Web-Entwickler

Profilbild von Nima Zahraei Hardwareentwickler - Softwareentwichler - Web-Entwickler aus Rostock
  • 18059 Rostock Freelancer in
  • Abschluss: Master Informationstechnik
  • Stunden-/Tagessatz: nicht angegeben
  • Sprachkenntnisse: deutsch (verhandlungssicher) | englisch (gut) | persisch (Muttersprache)
  • Letztes Update: 21.08.2020
Profilbild von Nima Zahraei Hardwareentwickler - Softwareentwichler - Web-Entwickler aus Rostock
I make solutions
Is there any novel idea in your mind, but you don't know how to proceed to achieve it? Or you already have a perfect plan, and need the right person to help execute it ? Now I cooperates with professional experiences, offering a brand new innovation service to give a fully-functioning solution and bring your ideas to life.
Main Services:
  • Electronic design and technical management of the project.
  • Implementation of the firmware, IT management and programming.
  • Managing the documentation related to the finalization of the project
I Possess a Professional PCB Layout With Design Experience Over 8 Years And Full Experienced Of Design.
The following are key areas that i can provide assistance:
  • Analog and Digital Circuit Design and Simulation
  • PCB Design (Multi-Layer, HDI, blind and buried vias, controlled impedance) (Design for EMC/FCC and other compliance requirements) Embedded Systems Design (Single Board Computer)
  • Prototyping
  • Embedded Firmware Development
I am skilled in various CAD/ECAD software tools depending on the customer requirements. Some of these tools include:
  • Altium Designer
  • Solidworks PCB
  • Autodesk Eagle
Power Supplies
  • Low-voltage, high-speed power supply designs (i.e. 5V, 3.3V, 2.5V, 1.8V, etc.) and Wireless charging based on Tl solutions for embedded systems
  • Medium-voltage power supply designs (12V, 24V, 48V, etc.) for entire system power, or a standalone product
  • Over-voltage, under-voltage, reverse-voltage, and over-current protection for all inputs to ensure a rugged product
  • Lithium-Ion/Lithium-Polymer and Lead-Acid battery system design, including protection circuitry for safe charging/discharging of cells
Analogue Circuitry
  • Custom sensor integration (temperature, light, pressure, etc.) and signal manipulation
  • Amplifier design for scaling, accuracy, or greater resolution improvements
  • Filter design for noise removal, anti-aliasing, and improved system performance
Digital Circuit
  • Intra-board communication protocols such as I2C, SPI, I2S and USART
  • Inter-board communication protocols such as RS-232, RS-485/MODBUS, USB, and Ethernet
  • Utilising integrated sensors and devices
  • OLED/LCD/e-Paper/Display integration into a design, for user feedback and interaction
Embedded Systems
  • Time-critical peripheral utilisation (timers, PWM channels, input-capture and sampling)
  • Fast and memory effective implementation (DMA vs traditional polling methods)
  • Integrated Analogue-Digital crossover (ADCs and DACs, both internal and external)
  • External programming options, for making units field-upgradable
  • Safety integrity using watchdog timers and external EEPROM to ensure reliable self-checking of system performance
Internet of Things (IoT)
  • Bluetooth design solutions, for simple master-to-slave IoT control/sensing devices
  • Wi-Fi design solutions, for larger sensor array/networking IoT systems
  • GPS/GNSS design solutions, for positioning data availability
Schematic Capture
  • Using Altium Designer , and various circuit simulation spice tools
PCB Layout
  • Using Altium Designer , and various PCB performance simulation tools
  • Multilayer PCB design, from 1-layer for extremely cost-effective products, to 14 layer for extremely complex products
  • Design-for-EMC, aiming towards first-time compliance passing for a smoother production transition in the long-term