The 60N60 IGBT full-bridge exploded during a small test of playing MIDI on the DRSSTC. I upgraded it to a SKM200GB123 bricks. DRSSTC IGBT explosions are no joke, 12 days before a show. Can you guess the song that was played? DRSSTC IGBT explosion is properly a bit much to say. It was a silent […]
Tesla coil DRSSTC IGBT explosion. 12 days before a show, panic! Read More »
Here is a little quick, dirty and early morning junk yard teardown of a 20 kVA Eaton PowerWare UPS system. I have earlier taken some of these systems apart and you can see the differences from there photo galleries:http://kaizerpowerelectronics.dk/tools/file-archive/?drawer=images*junk_yard_stuff*2016_03_22_-_Eaton_Powerware_20kVA_UPShttp://kaizerpowerelectronics.dk/tools/file-archive/?drawer=images*junk_yard_stuff*2016_03_22_-_Eaton_Powerware_30kVA_UPShttp://kaizerpowerelectronics.dk/tools/file-archive/?drawer=images*junk_yard_stuff*2016_09_23_-_Eaton_Powerware_20kVA_UPS Other UPS teardown videos:60 kVA Eaton UPS system http://kaizerpowerelectronics.dk/teardown/teardown-of-a-eaton-powerware-60kva-ups-system/30 kVA Eaton UPS system http://kaizerpowerelectronics.dk/teardown/teardown-video-of-eaton-powerware-30-kva-ups/2.2 kVA UPS
Eaton PowerWare 20 kVA UPS teardown Read More »
This is the teardown of a large 2x Eaton PowerWare 60kVA UPS system, first is the teardown video and below are some pictures and a little description of the components. For many more UPS teardown videos, check out the complete list. Here is a picture of a single Eaton PowerWare 60kVA system installed with battery
Teardown of a Eaton PowerWare 60kVA UPS system Read More »
In part 2 of the hacking series, I am doing measurements on the IGBT waveforms and voltage/current waveforms output form the quasi-resonant inverter. Part 2 of hacking the IKEA induction cooktop: https://kaizerpowerelectronics.dk/general-electronics/hacking-ikea-2kw-induction-hob/ Discussion of this project is on Highvoltageforum.net thread: https://highvoltageforum.net/index.php?topic=104.0
Hacking the IKEA 2000 Watt Induction Cooktop, Measurements (Part 2) Read More »
The first part of a series of maybe 5 chapters on tearing down and hacking a IKEA 2000 Watt induction stove is now online. Click the box below to read the whole article and get all the details. https://kaizerpowerelectronics.dk/general-electronics/hacking-ikea-2kw-induction-hob/ Highvoltageforum.net thread: https://highvoltageforum.net/index.php?topic=104.0
Hacking The IKEA 2000 Watt Induction Stove, Teardown (Part 1) Read More »
This is a Kone KM997160 variable frequency motor drive that is developed and used for elevators. Kone has a long history of their own motor drives that came in more or less atypical enclosures compared to other variable frequency drives. With this KDM model, they do however take the same form as many other drives
Kone elevator 45 kW motor drive teardown Read More »
This is a Kone Elevator control and power electronics panel dated around 1999-2000 according to stickers and test marks. It does not appear to have had a user interface, unless that was connected to the RS232 port. The front reveals a control board with a -12 VDC, GND and +12 VDC power supply at the
Kone elevator control/power electronics panel teardown 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 »