Engineer Electrical

Benjamin M. Bian

Irvine, CA ***** 303-***-**** **********@*****.*** linkedin.com/in/Benjaminbian

Electrical Engineer

Precision focused professional electrical engineer with 5+ years of experience in power electronics testing through the entire product development cycle; Experience with VLSI, mixed signal and embedded system applications, including RF communications and power electronics.

Technical Skills:

LabVIEW C/C++ /python Cadence/ALtium certificate

VBScript/TCL MATLAB ADS tool

Test Engineer Wattstopper Carlsbad, CA 2015-2016

IC Mixed Signal Test Engineer Broadcom Irvine, CA 2010-2014

Firmware Engineer Echostar Comm, Denver, CO 2008-2009

Professional Experiences:

Redesigned new zero cross circuit for relay and reversing engineering flyback converter transformer

Improved the converter circuits by analyzing DC-DC buck converter with PI and PD feedback loop

Developed a new test platform for Power system Management and system verification

Executed the test plans for 347 V in high voltage for flyback converter and analyzing the test result

Diagnose malfunctioning systems by testing EMI and ESD in the circuits

Supported both Engineering and Manufacturing teams with new projects including DC-DC Buck, LDOs, Battery and Charger.

Created and conducted processes to test Power Management Unit (PMU) including LDOs, PSRR, RTC, I2C transfer verification, Charger battery, Buck switch, Jitter and Phase noise in DVT team with all lab equipment, such as, Agilent power supply, oscilloscope, network analyzer, etc.

Developed VBScript and LabVIEW automation processes with GPIB and RS232 connection

Analyzed and presented detailed test reports to the DVT lead with strong organization and documentation skills

Tested integrated cell phone functionality by using use cases in a Linux kernel platform, such as phone Suspend/Resume, AP and CP power island debug, and hardware trace debug with digital analyzer to remain low power mode with ability to prioritize & multi-task in a fast pace.

Performed debug testing of cell phones by applying command line in ADB shell for UART log to test various functionalities in 3G/2G, Flight mode, MP3, Boot up with and without SD card to optimize output by 24%.

Simulated RF circuit with ADS tool to verify LNA matching design to ensure impedance matching

Developed and implemented VBScript and TCL to complete automation testing for PHY functionality on SerDes chip in mode 40G, XFI and OTU3. Resulting in saving 2 hours a day in automation test.

Developed and implemented power supply script to measure power cases in various industry standards, resulting in saving cost 15% in the chip cost.

Verified I/O and SPI functional with programmable logic devices in embedded system.

Developed and implemented C code to control Timer Management System (TMS) on multi-module Set-Top-Boxes (STB) to improve products usage for customers by 50% in Linux platform.

Designed and implemented User Interface and screen “widgets” by presenting TMS information on STBs to bring customers convenience to subscribe programs in UPnP network with TCP/IP protocols.

Developed C code to format and parse data into XML to transmit IPTV standard format over the UPnP network to improve communications speed by 25%.

Developed C code for UUIDs to increase storage efficiency by 50% on set-top-boxes

EDUCATION:

MS in Electrical Engineering California State University, Fullerton 2014

BS in Electrical & Computer Engineering University of Colorado, Boulder 2008

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