My Inverter to drive HD LEDs
My Inverter to drive HD LEDs
Here is the 1-transistor inverter that will drive them I built. Hopefully, I can post the photo of my device.
Here is the lamp prototype to be built out of an aluminum sheet to hold my 5 LumiLEDs and 5 HD LEDs for my front yard light that keeps burning out in the Colorado cold.
Preparing RecommendationsAbout Happy Holden
This is my 40th year in electronics and especially printed circuits. From 1968, when I first started and an IC Process Engineer for Hewlett-Packard, my first 10 years at HP took me into PCB Chemical Engineering and Engr. Mgmt., then 10 years in Asia for HP working on Application Software, to my final 8 years at HP being the PCB R&D Mgr. for boards and packaging.
After retiring from HP, I ran my own Consulting COmpany for 10 years until being hired by one of my clients, Mentor Graphics. Being at Mentor Graphics since the fall of 2006, I now focus on Advanced PCB Technologies, both for consulting and for new Mentor products.
High Density Interconnects )(HDI) is one of those advanced technologies, as well as Flex-Rigid, 3D Packaging (SiP) , photonics (waveguides) and now MEMS and MicroFluidics.
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Preparing RecommendationsRecent Posts
- Need stitching vias?
- PADS Tips and Tricks: Pin Swapping
- Turn off your phone!
- Is it SSN or is it Crosstalk?
- Crosstalk is everywhere
- PADS Tips and Tricks: Via Shielding
- The cure for sick waveforms
- Running at 6GHz with your eyes closed can be scary
- PADS Tips and Tricks: Sense Lines
- It's never too late
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- May, 2012
- April, 2012
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- Running at 6GHz with your eyes closed can be scary
- PADS Tips and Tricks: Sense Lines
- It's never too late
- PADS Tips and Tricks - Downloading New License File
- PADS Tips and Tricks: Differential Pairs
- Great Things in Small Packages
- PADS Tips and Tricks – Installation and Licensing
- PADS 9.4 Released with Unique Technology
- The Parallel Pain
- Put the Pieces in Place for SERDES Success
- Know your limits
- PADS Tips and Tricks - Cross Probing
- February, 2012
- January, 2012
- November, 2011
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- May, 2011
- April, 2011
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- January, 2011
- PCB Design Perfection Starts in the CAD Library - Part 12
- The length of your terminator doesn't matter
- HDI Via-In-Pad (VIP)
- Vias are longer than their length
- Stack or Stagger MicroVias?
- How do you manage your trace lengths?
- PCB Design Perfection Starts in the CAD Library - Part 11
- Why PCB Design Matters to the Executive
- PCB Design Perfection Starts in the CAD Library - Part 10
- S-parameters are for more than just packages
- PCB Market Share - Who cares?
- Making SERDES sims faster with IBIS-AMI
- Tired of waiting for your SPICE to finish?
- PCB Design Perfection Starts in the CAD Library - Part 9: BGA Components
- December, 2010
- November, 2010
- October, 2010
- September, 2010
- July, 2010
- June, 2010
- Fundamentals of SI (Part 3) - Impedance
- Challenge For Dynamic Flex: Impedance Control
- Technology Drivers For Printed Circuits-REVISITED
- EIGHT (8) KEY HDI DESIGN FEATURES
- "Made In America"
- Datasheets: Please give us some input!
- vSure, For Sure
- DFM, starts with Design and ends with Manufacturing
- Design for obfuscation!
- Assess Your PCB Development Performance
- Return to the Colonies
- May, 2010
- April, 2010
- March, 2010
- February, 2010
- January, 2010
- December, 2009
- November, 2009
- October, 2009
- The Halloween Rush
- Kontron - 2009 PCB TLA computer category winner
- PCB Does Matter
- Desktop PCB and Technology
- PCB Design - How Many Monitors?
- Tellabs - 2009 PCB TLA overall winner
- PCB design trends show increasing complexity
- 2009 Technology Leadership Awards – The results are in!
- With A Little Help From My Friends
- September, 2009
- The Radical Future of R&D
- How beer was instrumental in kick-starting the industrial revolution. How lessons learned then can assist in your latest Multi-Gbps Serial Channel Design
- Welcome to the New Multi-Gbps Memory and Serial Channel Design Blog
- Design Reviews in a Virtual World
- Right Tool for the Job!
- DxDesigner Multi-PCB Project (Part 11)
- The verdict is (almost) in!
- August, 2009
- July, 2009
- June, 2009
- Power to the People!
- New Chapters for the HDI HANDBOOK
- “Desktop” versus “Enterprise”. Which is for you?
- Compete with fellow PCB designers for Mentor’s Technology Leadership Awards
- Multiple PCB Boards, One DxDesigner Project: The Coil Winder (Part 1)
- Observations from the Road
- HDI Training for Fabricators
- You Are Special!!!!!
- Innovate like Edison..... or Not....
- Trend to RF/Analog/Digital mixed technology boards
- PCB Designers are from Venus, Mechanical Designers are from Mars!
- Self-Learning Educational Opportunities for Designers
- PCB Developers are the Unsung Heroes of Innovation!
- A Passage to India: Questions & Answers for the Introduction to PADS 9.0 Webinar
- Recession: Should you pull back or get more aggressive?
- May, 2009
- Buried Capacitance Materials for Power Integrity
- Expecting more from your PCB design tool supplier
- Interactive Routing - What would you like to see improved or added?
- PTS Coupons for TH Process Control
- Free Download ! All You Wanted To Know About HDI....and MORE!
- Polymer printed transistors
- What will be growth industries for PCBs?
- My Inverter to drive HD LEDs
- Wifi Signal Strength
- What's important when you want to "design for the lowest cost"?
- How do you get started in HDI?
- Where do you draw the line?
- U2U Expedition PCB Questions, Issues and Answers - Part I
- "BGA Breakouts and Routing" Review and Second Edition Now Available
- Personalized Menus - Use them?
- Effective BGA Fanout Patterns - Presentation with Voiceover
- High Density Interconnect in Expedition PCB
- Tipping Point for Large BGAs
- Ribbon Menus - Do you like them?
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