Lamp Torture
3,599 views · Published 23 February 2014 · 9:58 · Indexed 4 November 2026
Channel: RODALCO2007 · 2014 · Science & Technology
The ZVS driver with a CRT flyback transformer was used here to melt the glass of the lamp and burn the tungsten of the filament. In the first clip 27 Volts DC was used, in the other parts 30 Volts DC was used to drive the IRFP250 mosfets. ( current varies between 4 and 7 Ampères. ) The arc is normally white, as soon the arc colour changes to yellow the glass has melted, and the cutting / melting is clearly visible. When the tungsten is ignited / oxidized a violent white glow happens within the glass envelope of the lamp. Info dded 24 Feb 2014 The High Voltage current is between 40 and 60 mA's. Very interesting to note that longer arcs draw less HV current but more DC current for the ZVS driver.
