Tag Archives: IGBT

Teardown of a Eaton PowerWare 60kVA UPS system

This is the teardown of a large 2x 60 kVA Eaton UPS system, first is the teardown video and below are some pictures and a little description of the components. Here is a picture of a single 60 kVA system … Continue reading

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Hacking the IKEA 2000 Watt induction stove, measurements (part 2)

Youtube video part 2 of 5 The second part of the series of maybe 5 chapters on tearing down and hacking a IKEA 2000 Watt induction stove is now published. Click the box below to read the whole article and … Continue reading

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Hacking the IKEA 2000 Watt induction stove, teardown (part 1)

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. Hacking IKEA … Continue reading

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Hacking IKEA 2kW induction hob

Introduction IKEA had their single stand alone induction stove on sale for 40 Euro and that was cheap enough to buy it only to take it apart and possibly destroy it during experiments. Perhabs this could be a quick and … Continue reading

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Snubber capacitor calculator

Here you can calculate the snubber capacitance that is needed to keep transient voltages below the maximum allowed value. Stray inductance is the inductance in the primary circuit of the inverter. If the stray inductance is not known, the two … Continue reading

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Kone elevator 45 kW motor drive teardown

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. … Continue reading

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Kaizer DRSSTC IV

WARNING!: Working with electricity is dangerous, all information found on my site is for educational purpose and I accept no responsibility for others actions using the information found on this site. Read this document about safety! http://www.pupman.com/safety.htm Introduction DO NOT REPLICATE … Continue reading

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Kone elevator control/power electronics panel teardown

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 … Continue reading

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New online calculator for IGBT gate drive

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 … Continue reading

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IGBT gate drive calculator

Published on: Feb 17, 2016. Updated: Dec 06, 2017. To insure that we switch our IGBT fast enough to lessen losses, slow enough to avoid ringing and the drive circuitry is stable we have to calculate the power, current and … Continue reading

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