Author Archives: Mads Barnkob

About Mads Barnkob

Electrician, programmer, experimenter and amateur scientist with experience in industry automation, programming and all kinds of high voltage generating electronics.

Administrator of www.kaizerpowerelectronics.dk and the high voltage community forum www.highvoltageforum.net

To all electronic enthusiasts!

I kindly ask you all, that you carefully consider and think about all the websites you have used to learn about electronics, all the forums you have trawled through for information and the vast amount of videos on youtube that … Continue reading

Posted in News | Leave a comment

Nokia Siemens Networks Flexi WCDMA teardown: integrated Doherty amplifier (part 5)

Nokia Siemens Networks Flexi Multiradio BTS is a GSM/EDGE, WCDMA/(I-)HSPA, and LTE base station for use in mobile telecommunication antenna networks. A network that you use daily on your cellphone. Teardown of a NXP BLD6G22L-150 integrated Doherty amplifier from a … Continue reading

Posted in Teardown | Tagged , , , , | Leave a comment

Nokia Siemens Networks Flexi WCDMA teardown: Power amplifier (part 4)

Nokia Siemens Networks Flexi Multiradio BTS is a GSM/EDGE, WCDMA/(I-)HSPA, and LTE base station for use in mobile telecommunication antenna networks. A network that you use daily on your cellphone. Part 1: System station, Part 2: Power Amplifier and Part … Continue reading

Posted in Teardown | Tagged , , , , | Leave a comment

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

Posted in Teardown | Tagged , , , , | Leave a comment

Kaizer DRSSTC IV – a high impedance primary circuit experiment

A new article has been added that describes the thoughts, design, construction and test of a very high impedance primary circuit QCW DRSSTC, where the voltage ramp is coming straight from half wave rectified mains supply and a mains synced … Continue reading

Posted in Tesla Coils | Tagged , , | Leave a comment

A new dedicated high voltage forum!

Hello everyone! The comment sections on my website have grown long with questions, advices and solutions. So I have expanded the site with a brand new forum, on a dedicated domain. We are a group of seasoned high voltage and … Continue reading

Posted in Electronics, High voltage, News, Tesla Coils | Tagged , , | 1 Comment

Teardown video of HP SureStore DLT 818 tape backup station

The HP SureStore E DLT Autoloader 818 is a cost-effective high-performance tape storage solution. This system comes equipped with a DLT8000 drive, which transfers data at up to 12 MB per second (compressed), allowing servers to be backed up or … Continue reading

Posted in Teardown | Tagged | Leave a comment

Mysterious failure of a Siemens mini circuit breaker C6A (5SY41)

From one day to another this mini circuit breaker stopped working, I had been using it wrongly as a on/off switch and was wondering if there was a mechanism inside to disable it after too many on/off switches, as MCBs … Continue reading

Posted in Electronics, Teardown | Tagged , , , | 2 Comments

Teardown video of Eaton PowerWare 30 kVA UPS

Here is a video from taking apart 3 UPS units from Eaton PowerWare, these are 30 kVA units that was previously described in pictures and text in one of my earlier teardown articles: http://kaizerpowerelectronics.dk/electronics/teardown-eaton-powerware-30-kva-ups/ 

Posted in Teardown | Tagged , , | Leave a comment

Teleste AC2000, teardown of a 862 MHz cable TV amplifier

This Teleste AC2000 is a cable TV amplifier that is configurable through different insert jumpers for setting up attenuation/equalization, diplex filters, return amplifier or a transponder making it remote controllable.  This is a dual 39 dB amplifier in the range … Continue reading

Posted in Teardown | Tagged , , , | Leave a comment