Talented Electronics & Mechanical Engineer with years of experience in design of reliable and efficient circuits, real-time embedded microprocessor coding and system integration. Expert in motor control, embedded C software, FPGA digital logic design, multidisciplinary projects, Electromechanical design. Strong debugging skills, team player, fast learner, self starter.
Designed motion picture film lenses with internal 10mm brushless motors, controlled by STM32 ARM Cortex processor. Designed hardware, wrote embedded software in C and assembly langue. Invented motion profile generator coded in assembly for fast execution PID loop and smooth motor control. Motor thermal protection based on real-time motor power calculation and ambient temperature sensing. Managed complete design cycle from project specification through production and ongoing support.
Designed internal brushless DC motor precision speed control for 65mm wide screen format movie cameras using Xilinx FPGA with MicroBlaze embedded processor. Expert in closed-loop motor control and motor power electronic circuitry. Camera has multiple motors run in sync using electronic gearing technique. High precision motor speed control using phase-lock loop for syncing picture frames and sound frames. Invented special motor 3-phase sinusoidal driver PWM switching technique resulting higher motor max speed compared to conventional PWM method limited by power supply rail.
Developed special firmware to remotely control CANON Ultrasonic motorized lenses. Extensive reverse-engineering required.
Managed team of 7 engineers designing 35mm motion picture film cameras and remotely controlled lenses. Working closely with team members to develop project specification, develop solutions and meet deadlines.
Designed custom high power density brushless DC motor and precision speed control, first ever in the movie industry. Specified motors with skewed lamination stator for super smooth turning and zero cogging. Motor speed control using digital phase-lock loop implemented in Xilinx FPGA and Analog Devices DSP processor. Utilized my knowledge of mechanical engineering to effectively work with mechanical engineering team members.
Designed remote control system for movie cameras and lenses using RS232 and wireless. Lens remote control with external DC motors driven by microprocessor, power electronics and optical position encoders. Managed complete design cycle from project specification, schematic design, PCB layout, software C code development, debugging, to external clients technical support.
Designed avionic cockpit color display system using high resolution Electroluminescence display, touch screen and color graphic controller.
US citizen with Top Secret Clearance
Winner of Oscar and Emmy technical awards for the best movie camera Millenium-XL
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