Control Power
Resume:
MELVIN O. CO
*** ***** ******, *** **** Heights, Quezon City, Philippines
******.**@*****.***
QUALIFICATIONS:
. Excellent C/C++, Matlab and Assembly programmer
. Extensive knowledge and experience in programming DSP processors and
Digital Signal Controllers (DSC)
o TMS320C5000, TMS320C3x, TMS320C54x, ADSP21065L, ADSP2106x,
TMS320C6x, Freescale MC56F8013, MC56F8025, MC56F8037, Microchip
dsPIC33FJ16GS504
Development Environment
o Metroworks CodeWarrior, TI Code Composer Studio, Micochip MPLAB,
Analog Devices VisualDSP++
. Knowledgeable and experienced in I2C and UART communication
. Knowledgeable and experienced in PMBus and PSMI Protocol
. Knowledgeable and experienced in various operation of DC-DC and PFC
topologies
. Extensive experience in firmware/housekeeping and control development
of DSP based, high density power supply
. Extensive knowledge and experience in Digital Signal Processing
Algorithms and Linear Systems
. Extensive experience in teaching, training, and course development
. Proficient in designing and implementing
microprocessor/microcontroller based systems
. Vast experience in working with multiple teams
. Able to work with aggressive deadlines and high-profile projects
. Very good oral and written skills
. Has experience in team leading
EMPLOYMENT:
Emerson Network Power (formerly Astec International Ltd.)
Senior DSP Engineer 2007 - present
Firmware/DSP Engineer 2005 - 2007
. Development and implementation of digital control algorithm for power
supply's PFC block
o Digital compensation enhancement of digitally controlled Power-
Factor Correction (PFC) boost converter
o Development and implementation of digital feedforward algorithm
for PFC boost converter
o Development and implementation of digital control enhancement
during abnormal condition for PFC boost converter
. Development and implementation of digital control algorithm for power
supply's DC-DC block
o Digital compensation enhancement of digitally controlled buck
converter
o Development and implementation of digitally controlled load
sharing for redundant power supplies
o Developed and implemented procedure for sensed current
calibration
. Firmware support for power supply management, "housekeeping", of DC-DC
and PFC with DSP processor
o Implementation of PFC and DC-DC fault detection and protection
o Implementation of power supply signaling, turn-on and turn-off
sequence for different condition, and fault recovery
. Implementation of PSMI (Power supply management interface) protocol
for power supply and system communication
. Implementation of PMBus protocol for power supply and system
communication
. Provide customer support for all digitally controlled power supplies
. Provide support of all digitally controlled high-density, high-power
power supply (10 models as of January 2008)
o DS1800-3 (Mass Production)
- Developed digital control for PFC
- Developed supervisory(housekeeping) code for PFC
- Developed digital control for DC-DC converter
- Developed supervisory(housekeeping code) for DC-DC
- Started the development of PMBus protocol
o NTS503 (Mass Production)
- Adjusted digital control for PFC
- Developed supervisory(housekeeping) code for PFC
- Developed digital control for DC-DC converter
- Adjusted supervisory(housekeeping code) for DC-DC
- Started the development of PMBus protocol
o DS2000-3 (Mass Production)
- Adjusted digital control for PFC
- Housekeeping codes came from DS1800-3
- Adjusted digital control for DC-DC converter
- Provide firmware support for housekeeping code
customization
o DS1200-3 (Mass Production)
- Adjusted digital control for PFC
- Housekeeping codes came from DS1800-3
- Adjusted digital control for DC-DC converter
- Provide firmware support for housekeeping code
customization
o 10G Noble (Mass Production)
- Adjusted digital control for DC-DC converter
- Provide firmware support for housekeeping code
customization
o DS2900 (Mass Production)
- Adjusted digital control for PFC
- Housekeeping codes came from DS1800-3
- Provide firmware support for housekeeping code
customization
o 6 High Efficient Power Supply (93%) (4 in Mass Production and 2
in PILOT)
- Implemented novel way of Digital enhanced-dynamic
control for PFC
- Adjusted digital control for PFC
- Housekeeping codes came from DS1800-3
- Adjusted digital control for DC-DC converter
- Developed new firmware codes that made PSU more
efficient in terms of power consumption
- Provide firmware support for housekeeping code
customization
o High Efficient, Energy star compliant Workstation Power
Supply (EVT)
- Developed housekeeping and control code
- PFC control loop optimization
- DC-DC control loop compensation
o 2 Silver Power Supply (DVT)
o 1 Gold Power Supply (DVT)
. Deployment of new digital control algorithms from R&D group to design
teams
. Conduct Digital Control training for ASTEC engineers
. Involved in the study and evaluation of DSCs for power supply
application
o Point-person for determining DSC specification requirements for
power supply application
o Point-person for determining available DSC capability to
support new power supply algorithms and topologies
Department of Electrical and Electronics Engineering
University of the Philippines Diliman
Assistant Professor I 2003 - 2005
Texas Instruments Elite Laboratory Head 2003 - 2005
Lecturer 2001 - 2003
. One of the main proponent for the designed and development of the
first phonemically balanced Filipino speech corpus for use in Filipino
speech recognition and synthesis research
. Supervised and advised student undergraduate projects
o Automatic Duration Modeling and Time-Scale Modification of
Filipino Speech
o A PDA-Based Robust Automatic Speech Recognizer for the Filipino
Speech Corpus
. Courses/Subjects Handled:
o Microprocessor-Based Design, Computer Organization,
Electromagnetics I, Realtime DSP, Switching Theory and Digital
Logic Design, Digital Filter Design and Applications, Digital
Circuits I, Linear Systems Analysis, Introduction to Digital
Signal Processing (Laboratory), Speech Signal Processing,
Electric Circuit Theory, Electrical Instrumentation and
Measurements (Laboratory), Essentials of Electrical Engineering
I (Laboratory), Electronics Laboratory I
. Conduct seminars for various industry engineers and professors from
other universities and colleges
o Texas Instruments' TMS320C55x Workshop
University of the Cordilleras, Baguio City
Philippines (with E. Tan)
o Real-time DSP Using ADSP-21065L Workshop
Mapua Institute of Technology, Manila
Philippines (with R. Cajote and E. Umali)
o Mixed-Signal Test Course for Intel Engineers
University of the Philippines Diliman
Philippines (with R. Cajote, R. C. L. Guevara, and L. P.
Alarcon)
o Texas Instruments' TMS320C54x Workshop
University of the Philippines Diliman
Philippines (with E. Tan and R. Cajote)
Department of Electrical and Electronics Engineering 2000 - 2001
University of the Philippines Diliman
Graduate Assistant
Advanced Science and Technology Institute April - May 1999
Department of Science and Technology
Student Assistant
EDUCATION:
Master of Science in Electrical Engineering (Computer and Communications)
2000-2002
University of the Philippines Diliman
Thesis: "Prosody Development for Filipino Text-to-Speech System"
Host Laboratory: Digital Signal Processing Laboratory
Bachelor of Science in Computer Engineering 1995 -
2000
University of the Philippines Diliman
Undergraduate Project: "Voice Over IP Using Texas Instrument's TMS320C3x"
Host Laboratory: Digital Signal Processing Laboratory
Task: Design and Implemented a kernel for the DSP processor
Secondary Education 1991 -
1995
Grace Christian High School
Quezon City, Philippines
Primary Education 1985 -
1991
Grace Christian High School
Quezon City, Philippines
PERSONAL DATA:
Age: 31
Birthday: May 24, 1978
Nationality: Filipino
Civil Status: Single
RESEARCH INTEREST
Speech CODEC and Speech Synthesis
Digital, Optimum and Adaptive Filters
Embedded Systems
PATENT
US Patent Application
AC-DC Switching Power Converters with Frequency Variation in Response to
Load Changes
PUBLISHED WORKS AND ADVISED UNDERGRADUATE RESEARCH PROJECTS
M. Co and R. C. L. Guevara, "Prosody Modification in Filipino Speech
Synthesis Using Dynamic Time Warping", IEEE TENCON 2003, Bangalore,
India, Oct 15-17, 2003
M. Co, "Automatic Extraction of Pitch Contour," in Proc. 4th National
ECE Conference, Nov 26-29, 2003
E. dela Vega, M. Co, and R. C. L. Guevara, "Language Model for
Predicting Parts-of-Speech in Filipino Sentences,"in Proc. 3rd
National ECE Conference, Nov 27-29, 2002
L. Tupas, M. Co, and R. C. L. Guevara, "Concatenative Filipino Text-to-
Speech System for Synthesizing Two-Syllable Filipino Words," in Proc.
3rd National ECE Conference, Nov 27-29, 2002
R. C. L. Guevara, M. Co, E. Tan, I. D. Garcia, E. Espina, R. Ensomo,
and R. Sagum, "Development of a Filipino Speech Corpus," in Proc. 3rd
National ECE Conference, Nov 27-29, 2002
A. Lopez, N. Aoyong, and M. Co, "Voice Transformation Method using
Vector Quantization," in Proc. 2nd National ECE Conference, Nov 28-29,
2001
E. Tan, M. Co, A. David, E. Macalinao, A. Pascual, R. Cajote, R.
Ocampo, and R. C. L. Guevara "Telephony over packet architecture for
campus PBX," in Proc. 1st National ECE Conference, Nov 27-29, 2000
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