R E S U M E

James Mills
1435 Race Street
Denver CO 80206
303-388-8318
cell and e-mail available on request

O B J E C T I V E

To be a key member of a research and development team at a profitable cutting edge technology company.

S U M M A R Y

• Wide range of analog, digital, and software skills.
• Analog experience includes servo, front end, digitizing, switching power supplies, simulation, compliance, motion control, mathematical analysis, and low frequency RF.
• Digital experience includes VHDL, PLD's, FPGA's, and discrete logic.
• Software experience includes assembler on a variety of processors, and C.
• Strong writing skills and broad scientific knowledge including physics, mathematics, optics, chemistry, thermodynamics, astronomy, and practical know-how.

C A R E E R   S U M M A R Y

Geotech Environmental Equipment
8035 East 40th Avenue
Denver, Colorado 80207
Phone: 303-320-4764
Fax: 303-322-7242
Toll Free: 800-833-7958
http://www.geotechenv.com/
January 02 to present
Electrical Engineer - product development and manufacturing

Self Employed as Jim Mills Engineering Services
June 00 to January 02
Contract work for Fiber ID LLC, 2050 Hillsdale Circle, Boulder, CO 80305
October 00 to April 01
Developed analog circuitry for a remote RF tag identification system for fiber optic connector identification and tracking for optical cross connect patch panels. Designed driver and tag antennas, antenna drive, sense, and tag circuit. Also: some recent work on simulation software in JAVA.

Astarte Fiber Networks, Inc.
2555 55th Street, Suite 100, Boulder CO 80301
June 98 to June 00
Development Engineer (analog and servo)
Responsible for all system analog circuit design, including low noise photodiode sensor and amplifier, high speed led drivers, magnetic motion control drivers, dacs and adc's, PCB layout, EMI, simulation. Complete PID servo algorithm design, including optimization for fixed point DSP math, extensive matlab modeling, and error budget analysis. Open loop targeting algorithm design, prior to servo lock. Tuning procedure to bring underdamped 2nd order system to target with no residual oscillation around target. Analytical characterization of sensor noise, from photodiode pre-amp through digitizing process.

Self Employed as Jim Mills Engineering Services
January 91 to June 98
Contract work for HyperQuan, 3692 Bijou, Colorado Springs, CO 80909 719-573-9692
May 93 to June 98
Complete embedded processor (68332) electronic system design, FLASH and SRAM memory, solenoid drivers, brushless DC motor drivers, multiple serial interfaces implemented in FPGA, parallel display interface, discrete ESD protected I/O. Complete embedded processor (68HC11) electronic system design, including closed loop flyback and forward converter universal input switching power supplies (including a specialized arc lamp current source drive), low noise analog signal path from photodiode inputs to 20 bit A/D, V/F and ratiometric A/D implemented in an asynchronous complex programmable logic design, LED display, keypad, serial computer interface, stepper motor drivers, analog (D/A) output, firmware, IIR filter. I also did some contract work for Linear Instruments during this time. A root solving inverse Laplace transform program written in C, with 80486 assembly language routines to optimize performance.

Linear Instruments (Now Thermo Separation Products; 408-526-1100)
2325 Robb Drive, Reno NV
June 86 to January 91
Engineer III
Complete embedded processor (68008) electronic system design, including linear power supplies, user interface, motion control, closed loop digital (PID) temperature control, including high resolution temperature digitizer, digital signal processing, and barcode cartridge reader. Analog servo control of a galvanometer, using PID, jerkless curve, feed forward, and integration cutout. All of the digital electronics in this system, including 6803 and 6809 processors, non-volatile SRAM, EPROM, and DRAM memory. More than 20000 have been sold.

Chirotech Scientific Instruments (Chirotech was bought by Linear in June of `96)
Fort Collins CO
November 1984 to June 1986
Electrical and firmware Engineer

Schwien & Son
293 Ventnor Avenue, Aspen CO
May 80 to October 84
Electrical and firmware Engineer
8080 firmware, system analog and digital electronics for a precision dual cistern mercury manometer project.

Aspen, CO
November 77 to May 80
Seasonally employed in a lumberyard, a ski shop, and a restaurant

Aerochem Research Laboratories
Princeton NJ
August 76 to Nov 77
Research Technician and assembly language programmer

E D U C A T I O N

P A T E N T S

#5,055,761: Smooth Rotation by a Galvanometer
#5,066,382: Thermal Control for Capillary Electrophoresis Apparatus
#5,172,117: Analog to digital conversion using an integrator and a sample and hold circuit

R E F E R E N C E S    U P O N    R E Q U E S T