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Vijil J. Status: Offline
Bengaluru, India
87% Job Success

PCB Design / Embedded Firmware /APP/ Prototyping/Production

I am a qualified PCB design engineer with 12+ years’ experience in the design of electronic systems, PCB Designs and embedded firmware, working full-time freelance. I have experience in various areas of electronic design, including embedded systems, analog circuits, digital circuits, TFT display drivers, LVDS, communication systems, high power switching controls, low power battery-operated devices, battery charging algorithms, Audio Amplifiers, sensors, medical systems, Micro controller (AVR, ARM, PIC, Renesas) based systems and designs. ----------------------------------------------------------------------------------------------------------------- Feel Free to contact me to discuss your project. If you require, I can also assist you in formulating the complete project requirements by recommending suitable technology. No matter what your technical background is, I can transform your product idea into reality using the best and most efficient technology available. If you require I can also fully assist you into moving your product to production, recommending suitable suppliers and providing full technical assistance during the entire process. ----------------------------------------------------------------------------------------------------------------- Some more details about my design experience. Circuits, Schematic & PCB design from ground. Circuit analyzing and debugging. Good in Power Circuits, analog circuits, sensitive circuits, medical circuits. Have good experiences to design the Footprint of the elements and their 3D model and link to the PCB layout. So enable to see the prototype of the designed circuit with 3d. Expert of the Length matching for impedance of the high frequency circuit, Multi-layer designed and added logo images. Enable to make the Gerber and BOM files and manufacture them and soldering too. And to test and shipping to anywhere. EMI/ EMC considerations for Layouts and Signal integrity. Design to ensure minimum noise level for power circuits and signals. PCB optimizing. Tools: Altium designer, Dip trace, OrCAD, Eagle. I have specific microcontroller experience with: - ST: STM32 ARM Cortex series - Renesas : R8C, RX68 series - Microchip: PIC (various) - NXP: 8051 series - Atmel: Atmega, Attiny, Atxmega, AT90CAN, and AVR32 series ----------------------------------------------------------------------------------------------------------------- Past product development experiences highlights include: - Schematic/PCB design of a high performance ARM Cortex-ST32 embedded system with 1024*768 TFT display controlling from a simple micro controller. The output can be taken in the format, Both LVDS and VGA. SD card is associated with the system for saving images. Best display option for microcontroller-based cheap systems for displaying large screens and audio. USB support too. I am done with the embedded software support for the same. - Schematic/PCB design for medical ECG system. Very very low input signal, many stages of amplification, analog filters, ADCs included. Software algorithms are used. - Schematic/PCB design of LI Ion charging system most efficient and cheap. - Schematic/PCB design of a high speed SPI, I2C, communication system, which needs termination and impedance matching. - Schematic/PCB design of isolated power supply. Which should less than 1% noise, obeying ISO-60601 for medical applications. - Schematic/PCB design of ZigBee/IEEE 802.15.4 and 6loWPAN wireless devices both on 2.4GHz band as well as sub-1Ghz (915MHz/868MHz/433MHz) bands with custom PCB trace antenna / external antenna and antenna matching circuit. Also developed related firmware. - Various Schematic/PCB/Firmware design project for high power solid state switching power circuit and motor controls thermal management controls.
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