Author Archive for gpitel

Sheryl and I painted a his (blue) and hers (red) Z-Scale trucks.  The size and printing capabilities were previously covered in Part 1. The models were washed in a soapy bath before painting.  The plastic were not primed beforehand, but we plan to spray with white primer coat the next go around. The 3d printing [...]

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A couple weeks ago we visited a local hobby shop called Penn Valley Hobby Center  in Lansdale, PA.  Walking around the aisles flooded me with memories of my youth gluing together plastic models and rockets.  The shop specialized mostly in trains and they carried a size called N-Scale (1:148) which is the smallest I have ever seen. [...]

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I really enjoy plants but my cat, Tesla, keeps eating them. To stop him, I went to Marshall’s and Michael’s and bought some glass tubes for 10-20 bucks. I used them as a poor mans cloche… I just hope the cat does not learn to tip them over!!!!

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I have been using a rather expensive remote (gyration) for my home theater for a while and one of the buttons failed. Most remotes have a conductive pad under the rubber buttons that contacts a pattern on the printed circuit board (PCB) inside to form a switch. A dirty pad or contact is the most [...]

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PitelSPOT server will shutdown on December 31st 2009 and will not become active again until Janurary 6th 2010 (at earliest).  We are moving from Illinois to New Jersey and are taking the server with us. We are also changing services from DSL to Cable. We are keeping out fingers crossed that cable upload speeds are [...]

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If you have ever used the the Electrical  Engineer Library included with Visio, you will quickly learn just how crappy it is. Symbols do not align to the grid, they contain long connectors, and the shapes are just plain unprofessional.  I believe the example image shown in Fig. 1 clearly explains my point. The circuit [...]

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Revenge of the permalink errors.  A had a similar problem happen when I upgraded to 2.7.1, which I posted about here. Downgrading to WordPress2.7.1 was really simple: Download the previous version. Drag the files into your WordPress installation directory. Log-in into the admin menu. WordPress will request to automatically update your database. Agree to the [...]

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This article covers chapter 5 of my dissertation. ¬†¬†¬†¬†- Single-Phase Grid Connected Control ¬†¬†¬† – Direct Digital Synthesis ¬†¬†¬†¬†- All Digital Phase-Lock Loop ¬†¬†¬†¬†- Software and Hardware¬†in the Loop Experiments ¬†¬†¬† – Rapid Control Prototypes and System Products ¬†G. Pitel, ‚ÄúFast power converters and rapid digital design,‚ÄĚ UILU-ENG-2008-2509, CEME-TR-2008-02, December 2008, pp. 92-109. ¬†¬†

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Good news, my transactions was accepted–which means I can start letting dissertation chapters¬† trickle out into Internet land. Enjoy. This article covers chapters 1 and 2 of my disstertation. These chapters cover: – Dissertation Introduction – Voltage Source Buck Converter Modeling – Boost Converter Modeling – Voltage Source Inverter Modeling G. Pitel, ‚ÄúFast power converters [...]

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This post adds to the collection of fixes for the dreaded WordPress HTTP 500 and HTTP 404 errors  users can encounter after an update . In particular, the article targets the scenerio when default Permalink settings (e.g. http://pitelspot.com/?p=123) work, but not custom structures (e.g. http://pitelspot.com/2009/04/sample-post/)  which produce HTTP404 errors. Below, I have summarize solutions that the [...]

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Archive for Grant Pitel.

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