Michael Mathiasmeier

**** * **** **, ******* TX 770**-***-*** 6367 acz61w@r.postjobfree.com

EDUCATION

B.S. Electrical Engineering Wichita State University 1987 GPA 3.53 Magna Cum Laude

Wichita State University 1988-1989

38 Hours Graduate Credit Electrical Engineering

GPA 3.83

SKILLS

• Proficient in analog circuit design with over 25 years experience including:

Power supplies and chargers, linear, AC-DC, DC-DC converters, synchronous converters, solar invertors from low power battery operated applications to kilowatts.

Common sensors including RTDs, thermistors, thermocouples, strain and pressure gauges, flow, RH, proximity, motion, current, photo sensors, capacitive touch and associated signal conditioning circuitry.

General signal processing including zero-drift, LNA, ΔΣ conversion, noise reduction, high speed amplifiers, summers and filters.

Driver and actuator circuits for control systems including bridged motor drives, solenoids, relays, variable speed motor control, heaters and thermoelectric converters

Audio amplifiers including low power PCM class D to 1kW class AB.

• Proficient in embedded/digital design with over 25 years experience including:

8, 16 and 32 bit core architectures and associated peripherals with manufacturers such as TI, Microchip, Atmel, SiLabs, Freescale, ST and Cypress.

Digital signal processing and data acquisition including, FFT, IIR and FIR filters, DDS, clock conversion, oversampling, compression algorithms, use of extended DSP assembly language and familiarity with most types of ADCs, DACs and CODECs from many manufacturers and applications from ultra-high accuracy sensing to high bandwidth video.

Control systems including single and multivariable continuous/discrete PID architectures, tuning methods and state space analysis

• Proficient with many types of commonly used communication technologies with 15 years of experience including:

USB including packet transmission, standard and vendor defined classes, enumeration, descriptors and experience using HID, mass storage, data acquisition and vendor defined applications

Use of wireless technologies including ISM, IrDA, classic and Smart Bluetooth including A2DP/AVRCP for audio and standard and custom BLE services, wifi and cellular communications for use in M2M applications.

Common intra and inter board level communication including RS-232/485, LVDS, UART, SPI, I2C and 1-wire.

• Proficient with most types of man-machine interface including keypads, keyboards, mice, joysticks, membrane panel design and use of touch screens and static/multiplexed 7 segment displays, character, graphic and color TFT displays.

• Over 25 years of circuit and pcb design including schematic capture, simulation and pcb routing with up to six layer high speed designs incorporating part creation, library management, noise, tolerance, power and signal integrity analysis. Excellent grasp of techniques used to reduce cost and EMI while ensuring quality performance and reliability with familiarity in designing for FCC Part 15 and IEC61000 conformance testing. Familiarity with Altium Designer, OrCad, PCAD and Eagle design software packages.

• Proficient with prototyping and testing of electrical equipment including:

Proficiency with most types of electrical lab equipment including power supplies, analog/digital oscilloscopes, spectrum analyzers, logic analyzers and multi-meters.

Good board assembly and reworking skills including both through-hole and SMT components, soldering irons, hot air de- solder stations, solder paste, stencils, syringes and reflow ovens.

Experience building control panels for US Navy applications and UL508A compliance

Excellent troubleshooting skills and technical

• Proficient programming skills including both C and assembly for embedded designs with CMSIS and extended DSP assembly for efficient use of DSP architectures, real time video processing and audio/video compression, C++, LabVIEW, VB.net,,Java and as well as HTML5, Javascript, CSS and php for PC and internet applications with experience writing commercial software for associated hardware control.

• Proficient with popular 3D and CAD software including Solidworks, AutoCAD, Geomagic and Blender.

• Good grasp of theoretical aspects of engineering design having worked as a math tutor for the math department during college and teaching at both engineering trade schools in the US and universities in P.R. of China.

• Experience with all phases of product development from design to prototyping, production and IP protection including sourcing, bid analysis, cost reduction, stress testing, yield analysis and quality control. WORK HISTORY

February 2014 - Present

Velarray LLC

Houston, TX

Electrical/Product Development Engineer - Primary responsibility focuses on the design, prototyping and testing of a proprietary imaging technology. This included the development of concept design, circuit design and pcb layout using Altium Designer, programming both the hardware in C using ARM4 and PIC16 controllers and a Windows application prototype software using C# and openCV. Please see www.TruFitPro.com as an example application of the final product.

May 2005-February 2014

ALA Scientific Instruments

Farmingdale, NY

Lead Engineer for Research and Development - ALA's main product line focuses on the science of eletrophysicology with universities being their primary market. Thus products include microscope imaging, automated fluidics for drug administration as well as maintenance of living tissue samples, valve controls and temperature and pressure controllers.

I was originally hired to oversee the development of a rapid temperature swing stimulator used in pain research for which they were given a $500k NIH grant. This included concept and circuit design, prototyping and testing of a device which could change temperature of a fluid rapidly with 10C/second rise/fall times from 0 to 50 C and hold with a 1 second steady state response. I was also responsible for the application software and hardware firmware development as well as custom vendor class USB communication using PIC and Cypress PSoC controllers.

A typical valve controller would include a series of drug filled syringes controlled from a central desktop computer software via USB. For this I typically used a generic communication protocol with a vendor class designation. Please see www.alascience.com for examples.

Duties included design of new products and revamp and maintenance of existing product lines. Additionally, as many of their clients are involved in cutting edge biological research, I was asked to also design custom equipment to meet their specific needs. Typical duties included participating in client consult and concept studies, proof-of-concept designs and prototyping mixed circuit design and signal processing often including sensors such as temperature, level, flow rates and pressure, sampling, control and data acquisition. Design tools included Cell, Altera Quartus, OrCad, Altium Designer, Alibre/GeoWorks and Solidworks.

Duties also included working with testing, production and procurement personnel to analyze device failures, improve quality control and yield and conduct cost reduction studies. 2003-2004

Chengdu University of Technology

Chengdu, Sichuan

P.R. of China

Electronics Instructor - Duties included curriculum development, presentation and student assessment for classes in basic analog circuit design including basic theory and function and modeling of common passive and active components and computer programming basics including assembly and C languages for class sizes ranging from 30 to 100 students. 2001-2002

Guangxi University

Nanning, Guangxi

P.R. of China

English and Electronics Instructor - Duties included curriculum development, presentation and student assessment for classes in basic analog circuit design including basic theory and function and modeling of common passive and active components and computer programming basics including assembly and C languages. 1999-2001

DataSound LLC

Philadelphia, PA

Electrical/Product Development Engineer - Primary duties focused on the development of a proprietary FLASH storage based audio entertainment system which included a main storage system with touch screen access, primary multi speaker audio player, automotive audio system and portable audio player all connected via wireless communication. Here I participated in concept studies, control and audio circuit design including digital sampling, PCM, virtual sound simulation, D/A mixed signal audio processing as well as small class D Bluetooth headphones and 240W class AB audio amplifiers as well as 1kW DC-DC switching power supplies. The majority of system design employed PIC18 and TI C5500 DSP processors with a mixture of integrated and discrete level analog driver architecture. I also participated in the development of a proprietary audio compression format which unlike Motion Picture formats, leveraged the unique repetitive characteristics and patterns of music format to generate high lossless compression rates. 1995-1999

Jacobs Engineering Group

Houston, TX

Philadelphia, PA

Control System Engineer III - Design feedback control system programming based on process and instrumentation data structures to provide automated and manual control of plant processes including mixers, boilers, heaters, coolers, separators, distillation towers and storage tanks.

This typically involved Honewell TDC, Siemens T3000, Foxboro or ABB 800 distributed control systems and PLCs employing C, FBC and LL languages. I participated primarily in control system development and testing including simulation and debugging during start up procedures.

Clients included Exxon, Texaco, Phizer and Merck among others. 1994-1995

United Technical Institute

Houston, TX

Electronics Instructor - Duties included curriculum development, presentation and student assessment for classes in basic analog circuit design including basic theory and function and modeling of common passive and active components and computer programming basics including assembly and C languages.

1992-1994

Raytheon Engineering

Houston, TX

Control System Engineer III Design feedback control system programming based on process and instrumentation data structures to provide automated and manual control of plant processes including mixers, boilers, heaters, coolers, separators, distillation towers and storage tanks.

This typically involved Honewell TDC, Siemens T3000, Foxboro or ABB 800 distributed control systems and PLCs employing C, FBC and LL languages. I participated primarily in control system development and testing including simulation and debugging during start up procedures.

Clients included Exxon, Texaco, Phizer and Merck among others. 1991-1992

Sperry Engineering

Houston, TX

Design Engineer. Design, prototyping and testing of high voltage sensor and communications systems used to track and position drilling heads in down-hole drilling systems. This was a a 6 month contract position specifically to aid in the design of custom communication circuitry at discrete gate and CPLD levels able to withstand the intense mechanical stress of drilling equipment. Here, I designed, noise tested and shake rig tested pcb designs for electrical and mechanical viability. 1987-1991

Litwin Engineers & Constructors

Houston, TX

Control System Engineer I - Analyze system sensor and signal processing requirements, design sensor networks and source actuators for the design of plant control systems used in various petrochemical plants. Here, I researched and selected third party sensor instrumentation such as pressure, temperature, flow and level sensors based on process information as well as conduct engineering bid analysis for procurement. 1985-1987

CommTech Inc.

Wichita, KS

Duties included pcb board design and layout of telephone modems and PC data acquisition equipment using PCad for schematic capture and pcb layout. 1983-1985

Wichita State University

Wichita, KS

Mathematics Tutor -Duties included providing free walk-in assistance at an on campus facility for those needing help understanding mathematical concepts and practices in algebra, trigonometry and calculus .

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