General electronics projects. Reverse engineering of industrial electronics. Smaller projects that you can make at home or for school.
Yesterday I conducted the first successful resistive load test of a 3 phase 13 A Lübcke variac stack. It has been been enhanced with safety and monitoring options. Read all about the construction and see all the pictures and video demonstration here.
Finished Project: 3 Phase 13A Lübcke Variac Read More »
I have successfully detected something, this might sound a little uncertain. But there definitely is detected some kind of radiation or particle energy that causes various levels of light generated in the BC408 scintillation plastic. It is being detected by being attached to the front of the photomultiplier tube. I have updated the article about
Photomultiplier Scintillation Experiment Read More »
I had the chance to take this Eaton Powerware 30 kVA / 27 kW (9355-30-N-7-2x9Ah) uninterrupted power supply apart to look for parts worth salvaging for future reuse in other projects. Looking up the type on the Eaton website we learn that it is a UPS using double conversion topology that provides isolation from all
Teardown – Eaton Powerware 30 kVA UPS Read More »
I picked up two of there 5.5kW frequency inverters from a scrap yard. Both assumed to be thrown out due to malfunction. I took them home to dismantle them for parts to use in other projects. First we have the front and two stickers, one with specifications and the other with end of life information.
Teardown – Schneider Electric Frequency Inverter ALTIVAR71 Read More »
I added a new online calculator that will help you do the calculations for IGBT gate drive. It is useful for continues wave operation and has a optional input and output for use with Tesla coils like DRSSTCs. Check it out! http://kaizerpowerelectronics.dk/calculators/igbt-gate-drive-calculator/ Learn how to build your own Tesla coil and how to make it
New online calculator for IGBT gate drive Read More »
I found a little time to put together the pictures, measurements and results of a solar panel I built from broken solar cells for sale on ebay. Not exactly a breakthrough in solar panel development, but more an eye opener on DIY solar panels. It might not always be a cheaper or better choice to
Small Solar Panel Project Added Read More »
The latest update to the 100 Watt 6P45S tube amplifier is about a lot of testing and fault finding that have gone into the tube amplifier. This is to correct noise and hum issues. It is now in a state where the audio amplifier itself is as stable as it will get. Further improvements lie solely on
100 Watt 6P45S amplifier update #2 Read More »
The latest update to the 100 Watt 6P45S tube amplifier is about the new printed circuit boards. The circuit boards was installed in the enclosure and a simple signal generator test was performed.
100 Watt 6P45S Tube Amplifier Update Read More »