Electrical and Electronics Engineering


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Digital and Processor Circuits

  • Microcontroller-based systems
    • ST and NXP ARM Cortex-M family MCUs
    • 8032 family
  • Microprocessor-based systems
    • NXP i.MX family MPUs
  • Memory sub-systems
    • FlashNAND, NOR, Serial
    • SRAM and SDRAM
  • Optimized discrete logic circuits
  • Communication Interfaces
    • USB
    • I2C, SPI, UART
    • HDMI

Analog Circuits

  • Complex analog circuits utilizing op-amps, comparators and discrete components
  • Power supply design
    • Switching and linear supplies
    • Power distribution systems
      • Optimization for density and cost
  • Motor control circuits
    • Brushed and brushless DC motors
    • Motor arrays
    • Stepper motors
    • Induction motors
  • Temperature measurement and control

Power Circuits

  • USB power supply design
    • USB Host and USB-C Power Delivery
  • Design of battery sub-systems 
    • Lithium Polymer and Nickel-based chemistries
    • Battery characterization
    • Design of gas-gauging algorithms
    • Partnerships with battery suppliers
  • Battery Charging
    • Design of wall-charger and USB charging systems
    • Thermal analysis
    • Safety and regulatory compliance
  • Power consumption
    • In-depth experience in measurement methodology
    • System optimization for power consumption

PCB Design and Assembly

  • Multi-layer rigid and flex PCB design
    • Using Altium, PADS and OrCAD
  • Schematic entry
  • Part and library generation
  • Placement and layout
    • Co-development with mechanical design
  • High-density design rules
    • Fine-pitch BGAs
    • 0201 components
    • 3mil traces/spaces
  • Design for Test and Manufacture (DFT/DFM)
  • Product-level DFMEA
  • Close partnerships with PCB fab and assembly houses for seamless delivery

Opto-electronics and Vision

  • Optical encoder design
    • Customized, miniature systems
  • Digital camera system design
    • Omnivision and Micron sensors
    • Parallel and Serial interfaces
    • Cost and layout optimization
  • Image capture and quality optimization
  • Illumination control systems
  • HDMI frame capture

Human-Machine Interfaces

  • Touch interface design
    • Projected capacitance
    • Resistive
  • Bluetooth systems
  • Audio systems and circuits
    • Frequency response characterization of transducers (speakers and microphones)
    • Audio codec design
    • Audio amplifiers
  • Haptic feedback (vibration)
    • Design of multi-transducer systems

Compliance Testing

  • Experience in Type Approval testing
    • EMI
    • EMC
    • FCC, IC and CE compliance testing
  • Environmental testing
    • Thermal testing
    • Humidity and Ingress Protection
    • In-house temperature test chamber

Simulation Tools

  • Simulation Tools
    • Analog/Mixed signal circuit simulation
      • Cadence OrCAD, Proteus & MultiSIM.
    • Power circuit design
      • Tspice, TINA & Cadence OrCAD
    • Signal integrity
      • Mentor Graphics Hyperlynx

Test Equipment

  • Digital and Mixed Signal Oscilloscopes (Tektronix)
  • Logic analysers (Agilent, Intronix)
  • Signal and Pattern generators (Victor Electronics)
  • RF signal generators (Fluke)
  • Data loggers (National Instruments)
  • Thermal cameras (FLIR)
  • Power supply test and monitoring equipment (HP, Tek Power, BK Precision)
  • Audio test and measurement equipment

Development Methodology

  • Experience in planning and execution of projects with software and mechanical design inter-dependencies
  • All aspects of electronic hardware design are addressed
    • Circuit design
    • Schematic capture
    • Bill of Materials generation
    • Printed Circuit Board (PCB) design
    • Prototype development
    • Fab and assembly vendor coordination
    • Production support
  • Document control using SVN
  • Active Collab for collaboration on projects
  • MS Project for project scheduling and tracking

 

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