Hardware Projects

Copyright © 2009 Jeff Johnson

Flick through my

Disclaimer

•To protect the privacy of clients, this presentation does not reveal any company names, nor the names of any products herein described

•This presentation is only intended to provide a quick overview of some of the various hardware that I have designed during my career

Child Seatbelt Alarm

•Alerts driver when a passenger has unbuckled seatbelt

•RF transmitter and receiver at 916MHz

•Designed for large scale production

 

Highway Emergency Phone

•MSP430 based•Mixed signal circuit•2-layer PCB• Isolated power supply•Split ground

 

Vehicle Measurement

•For precise electronic measurement of damaged vehicles

•8051 based•RF transmitter and receiver at

916MHz• Integrated battery charger•Designed for large scale production

 

Hospital Network Hub

•Links hospital systemsoNurse calloPagersoBed Alloc.

•DSP based• Isolated comm. •4-layer PCB•Ethernet 100Mbps•Design for large scale

production  

Instant Hot Water Heater

•Electronics to control:oHeating elementoSolenoid valve

•240VAC powered •Water temp

maintained at set value

•MSP430 based•Designed for large

scale production 

Optical CDMA Modem

•Proof of concept prototype for OCDMA

•FPGA based: Xilinx Virtex-5 XUPV5•Reed-Solomon Forward Error

Correction•1Gbps Ethernet to Optical

Conversion•RocketIO GTPs used for interface

with custom external hardware

Optical CDMA Modem: Transmitter

•1.25Gbps or 625Mbps operation•Reflective SOA light source in TO-

56•True dark output during silent

periods•PECL inputs•4-layer PCB

Optical CDMA Modem: Receiver

•1.25Gbps or 625Mbps operation

•Designed for receiving true burst-mode data

•Fixed threshold•Clock & Phase Aligner •8 x Over-sampling •Continuous output for

RocketIO compatibility

•4-layer PCB 

Want More Information?

•These are only a few of the products I have developed, if you want to know more about my hardware experience, please don't hesitate to contact me:

 •LinkedIn profile:

o http://www.linkedin.com/in/fpgadeveloper •Email address:

o jeff@fpgadeveloper.com