The Brandenburg Alpha Series II 5 kV Power Supply is from Great Britain and made in 1977. The model 2507r is specified for 500 to 5000 VDC at 5 mA, around 100 VA power rating. I bought this Brandenburg Alpha Series II 5kV high voltage power supply from a University in France, cleaning out. I …
Construction of a 3 phase 400 VAC at 32A mains supply soft start circuit with safety features and a data monitor. Pictures and schematics: https://kaizerpowerelectronics.dk/general-electronics/3-phase-32a-400vac-soft-start-power-supply/ All parts like enclosure, current transducers, voltage step down, contactors and wiring is reused from my 3 phase 13 A Lübcke variac build, that unfortunately had one of the auto …
A guide on how to make the, Artesyn 7001138 IBM 24R2730, server power supply run outside of its server enclosure. It might not be a complete teardown, but I do give a quick rundown on how the circuit works, in functions. To learn how to hack other server power supplies, check out these articles. Server …
Server PSU Hack – Artesyn 7001138 IBM 24R2730, 12VDC 69A 830W Read More »
Test and teardown of a Eaton 9355 UPS (formerly the Powerware 9355). It is a three-phase, double-conversion online UPS. Output power ranges from 10-15 kVA in a changeover scenario as follows: 150% for 5 sec / 125% for 1 min (online), 110% for 10 min. Battery type is 9 Ah, sealed, lead-acid, maintenance-free. Battery charger …
10 kVA Eaton UPS Teardown – Model PowerWare 9355 Read More »
A guide on how to make the, ACBEL FSA021 IBM 39Y7228, server power supply run outside of its server enclosure. You might also be interested in reading about the Server PSU Hack – HP DPS-800GB A, 12VDC 1000W or the Server PSU Hack – EMC2 API4SG10 12VDC 300W From a Dell PowerEdge M1000E. ACBEL FSA021 …
Server PSU Hack – ACBEL FSA021 IBM 39Y7228, 12VDC 38A 460W Read More »
The Tesla coil Soft Start Safety Box project has been finished. The first version of my soft start box for 3 phased 400 VAC loads was just that, a soft start box. I wanted to include safety features like fault detection and emergency stop, but I also wanted to remain galvanically isolated from the mains …
Project Documentation: Tesla Coil Soft Start Safety Box Read More »
This is a short walk-through on deuterium UV lamp theory and a test of the lamp in operation from its rather special power supply. PSU failed. Lamp failed. Complete fail. The lamp comes from the teardown of a Hitachi L7450 HPLC Diode-Array-Detector. HPLC is short for High Performance Liquid Chromatography. The DAD uses UV light …
Hitachi 890-2430 Deuterium UV Lamp Test and Theory Read More »
Turn your old compact Canon camera into a high speed photography camera with Canon Hack Development Kit I bypass the battery pack and make the camera run on a power supply, as the CHDK software takes a lot of CPU power, I also add a fan to cool down the CPU and optics. CHDK: https://chdk.fandom.com/wiki/CHDK …
Canon Ixus V70 Hack with CHDK for High Speed Photography Read More »