This document is a resume for Yi-Cheng Wan summarizing his education and work experience in electrical engineering. He received Master's and Bachelor's degrees in Electrical Engineering from National Chiao Tung University in Taiwan. He has worked at Qualcomm since 2013 as a Staff Engineer and Senior Engineer in power management integrated circuit design. He has also worked at Richtek Technology Corporation as a Senior Engineer from 2009 to 2013 designing power management units. Wan holds five US patents and has two patents pending related to voltage regulation and power management integrated circuit design.

1. Yi-Cheng Wan
#29-344, 147 Lorong 2 Toa Payoh, Singapore 310147
Mobile: +65 9831 8369 Email: yichengwan@gmail.com
EDUCATION
NATIONAL CHIAO TUNG UNIVERSITY
Master of Science (Electrical Engineering) Feb 2006 - Apr-2008
• Graduate score of 93.79 (A+)
Bachelor of Science (Electrical Engineering) Sep 2002 - Feb 2006
• Graduate score of 90.85 (A+)
WORK EXPERIENCE
QUALCOMM, SINGAPORE
Staff Engineer, PMIC design Dec 2015 – Present
• Manage a team of four senior engineers based in multiple Qualcomm locations
• Develop strategies for effective communication within the team and overcome constraints
due to time zone differences
• Design multi-phase fast transient SMPS for premium and mid-low tiers Power
Management Unit for Qualcomm applications
o Lead the Multi-phase fast transient SMPS design team to work with other adjacent
teams to accomplish key milestones and deliver results on schedule
o Design and verify the control architecture and circuits in BiCMOS technology
Senior Engineer, PMIC Design Mar 2013 – Nov 2015
• Designed high frequency SMPS in mid-low tier Power Management Unit for Qualcomm
applications.
o Designed and verified the control architecture and circuits in BiCMOS technology
o Achieved over 100 design wins in the mid-low tier markets
o Shipped over 100 million parts to China and other emerging markets since 2014
• Designed multi-phase fast transient SMPS in premium and mid-low tier Power
Management Unit for Qualcomm applications
o Designed and verified the control architecture and circuits in BiCMOS technology
o Developed technology for microchips currently in use in 99% of the premium tier
mobile devices

2. RICHTEK TECHNOLOGY CORPORATION, TAIWAN
Senior Engineer, Research & Development May 2009 – Feb 2013
• Designed and verified control method, loop architecture and electronic circuit in
BiCMOS technology
• Designed and verified serial communication interface between power management unit
and CPUs from Intel and AMD
• Collaborated with Intel/AMD power teams to define and revise the current and next
generation Vcore PWM specifications
• Defined, designed and verified specified functions and communication interface
between power management unit IC and customer systems
• Liaised between the power team and ASUS to meet ASIC developing target of achieving
higher product performance at lower cost as compared to competitors
• Accumulated sales of over 2 million parts per product life cycle of microchips developed
during the Netbook boom in 2010-2012
PATENTS
• US 8917072 B2: Control circuit and method for providing a signal for a PWM voltage
regulator to convert an input voltage into an output voltage
• US 8766617 B2: Method for improving voltage identification transient response and
voltage regulator
• US 8508206 B2: Adaptive constant on time adjustment circuit and method for adaptively
adjusting constant on time
• US 8836307 B2: Voltage regulator and pulse width modulation signal generation method
thereof
• US 20130057237 A1: Multi-phase switching regulator and droop circuit therefor
Two patents pending approval
ACTIVITIES
ADA voluntary group July 2015 – Present
Member of Singapore Gun Club
Surfing
SKILLS
Cadence tools: basic analog IC design tools
Software languages: C++ and Python
Hardware languages: Verilog
Project management