Profile image of Bulba39
Flag of Australia Gold Coast, Australia
Member since December, 2010
1 Recommendations

CanDo Inc. 

I am electronic design engineer working in R&Ds more than 15 years for international electronic design companies around NZ and Australia. I have extensive experience in many areas including embedded systems, analog and digital design, RF and power electronics. Rich experience in multilayer board design including impedance control, ESD, and EMI noise suppression. High-speed digital signal board design and analog RF board design. Experienced DDR2, Gigabit Ethernet, DC-DC, WIFI, Zigbee, Bluetooth, GSM, GPS, PCI ,Linear Image Sensors, touchscreens. CanDo Inc can solve your electronic puzzle.
$30 USD/hr
25 Reviews
  • 79%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 35%Repeat Hire Rate

Recent Reviews

  • image of cameronking11 Manufacture Magnetic sensor $1000.00 AUD

    “Thank you Again...Top quality in the end...Always a pleasure...Highly recommended Freelancer!”

    cameronking11 Flag of Australia yesterday.
    • Electronics
    • Manufacturing
    • Microcontroller
    • Electrical Engineering
    • PCB Layout
    • Hire me
  • image of cameronking11 PCB Designed to detect a Magnet field. $1333.00 AUD

    “Great Freelancer...will hire again...”

    cameronking11 Flag of Australia 4 months ago.
    • Electronics
    • Electrical Engineering
    • Embedded Software
    • PCB Layout
    • Circuit Design
  • image of dflohr New project Sequentric $450.00 USD

    “We have hired Bulba39 previously. In this project, like before, his work has been exceptional. He possesses a great skill set and we will definitely be calling on his expertise again.”

    dflohr Flag of United States 8 months ago.
    • Electrical Engineering
    • Hire me
  • image of igeorge5149 Battery backup supply $55.50 USD

    “Very challenging project from start, involving detection of an adjustable threshold point and switch to backup battery. The challenge was that both batteries had the same voltage = 3 volts (2xAA and CR2032). The approach taken by the engineer is to set the threshold for switching at 1.6 volts (*2) Then use an ideal Oring diode made from mosfets to prevent the flow back on the dead battery (regular diode has high drop). They are chips like that made by only 3 companies Maxim outrageous expensive. Intersil no adjustable threshold and just 32mA maximum output. Linear Technology, expensive also. I am very pleased with the engineer job as just in the first half hour he comes up with the concept and working schematic. Due to my customer requests, we had to go many times back and forth to made changes as requested, but all the changes were just in adjusting the values of the original schematic. I highly recommend this engineer for any analog job (my project was analog).”

    igeorge5149 Flag of Canada 1 year ago.
    • Electronics
    • Electrical Engineering
  • image of Arniem ECU breakout board $500.00 AUD

    “Top quality polished result. Accuracy is critical in the assembly of a 100+ pin breakout board. Understood my requirements and made sensible suggestions for improvements in the layout of the board. Carefully confirmed understandings when it was necessary. Looking forward to working on future projects.”

    Arniem Flag of Australia 2 years ago.
    • Electronics
    • PCB Layout
    • Hire me
  • image of NewArm Update PCB layout/routing to Camera project $125.00 USD

    “Bulba39 is definately an A+ player that can deliver a successful project.”

    NewArm Flag of United States 2 years ago.
    • Electronics
    • Product Sourcing
    • Manufacturing
    • Microcontroller
    • PCB Layout


Electronics Hardware Design Engineer

Jan 2002

I have designed and developed many 8/32 bit micro-controller based electronics circuits, schematics & PCB layout for Silabs, PIC24s, MSP430s, Atmel AT91SAM7, M16C, STM32 CortexM3 ARM MCUs well as Cyclone, Actel FPGAs, DDR2 SDRAMs, high voltage and power electronics power and discrete transistor circuit design, isolated 10-150Wt AC-DC SMPS , non-isolated DC/DC converters, buck, boost, SEPIC. Peripherals USB,I2C,CAN,RS232-485,SPI,LVDS, SDRAM, EEPROM, MMC, JTAG,SATA I have huge experie


Bachelor Degree

1988 - 1992 (4 years)


Diploma (1996)


Journal of Applied Spectroscopy

My Top Skills

  • PCB Layout 23
  • Electronics 17
  • Electrical Engineering 10
  • Microcontroller 7
  • Manufacturing 6
  • Engineering 2
  • Product Design 2
  • Manufacturing Design 1
  • Wireless 0
  • CAD/CAM 0
  • Product Management 0
  • Imaging 0
  • Robotics 0
  • Arduino 0
  • Broadcast Engineering 0

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