Author Archives: tom

Cosmic Ray Detector

I had always wanted to build a cosmic ray detector. A long time ago I experimented with Geiger–Müller tubes, but due to the low count rates (especially when using coincidence counting), the results were never satisfying. I decided to build … Continue reading

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Fitness Equipment RFID

  RFID blblabla comminucating over RS-485 multidrop. For more pictures check out the gallery

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IGBT H-Bridge and Driver

I started building an IGBT inverter using H-bridge topology. 2 Pairs of FGH50N6S2 IGBTs with RURG5060 anti-parallel diodes across them and a beefy 1uF cap on each leg. Measurements hardly showed any ringing but maybe it’s not a bad idea to add some extra … Continue reading

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Low Power Induction Heater

Blablabla bruggeman blablabla induction blablabla heater bla.     ://feelbetteryoga.com/wp-content/themes/launch/css/typography.css in typography.css look for code around 85 picture blablablablafrf rfrfrfrf For more pictures check out the gallery

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Midi Controller

My father plays in a band and he uses multiple MIDI sound modules with an old Akai MPC60 serving as a MIDI controller. The MPC60 is getting quite old and seems to be less reliable after all these years of service, so when I heard my … Continue reading

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Serial Port Timer

Another project I did for iPerform Software also commissioned by Biometrics. This device will have the same functionality as the DisplayBox when connected to a computer (laptop/netbook) running the appropriate software. It communicates over RS232 with a 9pin sub-D female connector. The entire board is … Continue reading

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DisplayBox

This is a project I did while working for iPerform Software commissioned by Biometrics. The initial project name was “DisplayBox”, the final product name was the “iLink”. It’s a hand-held device used for rehabilitation. It connects to a “Jump Mat” which is basically a … Continue reading

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