Design of Battery Management hardware. uP based controllers with electrically isolated battery management circuits. Power supply design, analogue circuits, etc.Having fun doing lots of design work

Design, evaluation and debug of power solutions (power sourcing, conversion, battery charging, et al). Troubleshooting of overall design (power, RF, digital, analogue, et al). Analytical work for predicting power consumption of designs in various operating modes. Analysis of power solutions used in designs. Development of test software (using C++) for select battery life tests and hardware debugging.

Responsible for the conception, specification, design and verification of electronics for rugged wireless hand-held computers, and their supporting peripherals for use in the Supply Chain Logistics and mobile markets. Designs included various processors (PXA255, PXA270, OMAP35x), microcontrollers, battery chargers, switch-mode power supplies, LCD displays, CPLDs, FPGAs, impedance controlled PCBs, radio modules (GSM, Bluetooth, 802.11a/b/g, assorted WAN), et al, with emphasis on low power… Show more Responsible for the conception, specification, design and verification of electronics for rugged wireless hand-held computers, and their supporting peripherals for use in the Supply Chain Logistics and mobile markets. Designs included various processors (PXA255, PXA270, OMAP35x), microcontrollers, battery chargers, switch-mode power supplies, LCD displays, CPLDs, FPGAs, impedance controlled PCBs, radio modules (GSM, Bluetooth, 802.11a/b/g, assorted WAN), et al, with emphasis on low power techniques. Integral participant of a multi-disciplinary engineering team that successfully designed and released a new wireless hand-held computer (7535). Responsible for power supply design, external interface multiplexing (patent granted) and EMC Technical Lead responsible for the concept development, specification, design and verification of the electronics for a new wireless hand-held computer (7530) targeted for freezer use. Responsible for power supply design, processor, CF buffering and EMC Project Lead tasked to schedule and orchestrate a multifunctional team to make the 7535 RoHS compliant with a tight timeline having a no-slip end date. Designed in additional features (such as bluetooth radio), upgraded the processor and reduced product cost Parachuted into projects whose time-lines were in peril due to technical problems Rectified design flaws in existing products yielding greatly reduced warranty repair costs Solved many EMC & ESD problems for assorted products to gain regulatory approvals Assisted RF Engineering on several radio integration projects (WAN and LAN) to reduce electromagnetic interference with radio operation Created several software tools, which increased work productivity R&D to create and prove new concepts  Suggested improvements to processes to expedite the release of products Provided consultation and technical guidance to Sustaining Engineering and Manufacturing Several patents granted Show less

Printer Development with responsibility for the conception, specification and design of high-voltage, high frequency drivers and other electronic components (power supplies, controllers, sensors and actuators) used to realise electron-beam printers. Designs included the use of power electronics, custom magnetics, digital and analogue ICs (including FPGAs and CPLDs), microprocessors, and low and high voltage analogue circuits. Layout of PCBs using Tango PCB. Software and firmware development… Show more Printer Development with responsibility for the conception, specification and design of high-voltage, high frequency drivers and other electronic components (power supplies, controllers, sensors and actuators) used to realise electron-beam printers. Designs included the use of power electronics, custom magnetics, digital and analogue ICs (including FPGAs and CPLDs), microprocessors, and low and high voltage analogue circuits. Layout of PCBs using Tango PCB. Software and firmware development in assembler, C and C++. Logic synthesis and simulation using VHDL. Also involved with the development of test circuitry, fixtures and methodologies; electromagnetic, electrostatic discharge and safety compliance; and release documentation. Conceptualized and designed novel printer drive electronics providing for adjustable dot size allowing print cartridge normalization giving improved print quality - patents granted Conceived and implemented an automatic contrast control means - patent granted Instituted "digilogue" design using CPLDs for more efficient and predictable operation of analogue circuits Designed microprocessor controlled modules providing distributed control for print system support functions Responsible for design and implementation of all power electronics for printing systems Responsible for EMC compliance of all products Show less