Tungsten Lamps of High Efficiency—I

Breakdown characteristics of high pressure xenon lamps

An investigation of the breakdown of high intensity discharge (HID) lamps filled with xenon at pressures from 0.1 to 5 bar is presented. Three power supplies were used in order to provide voltage rates of increase covering about four orders of magnitude from 5 mV ns−1 to 100 V ns−1, the latter being typical for electronic ballasts driving commercial HID lamps. Customized lamps ensure a volume b...

The High Frequency Spectrum of Tungsten.

Features and Operation of Hollow Cathode Lamps and Deuterium Lamps

This paper discusses the parameters which influence the operation of hollow cathode and deuterium lamps. Examples are given of how parameters can be selected in order to improve the quality of analytical results. Aspects of deuterium lamp operation for background correction are also covered.

A SPICE Compatible Model of High Intensity Discharge Lamps

-A SPICE compat ib le model o f High Intens i ty Discharge (HID) lamps was developed and ver i f i ed aga ins t exper imenta l resu l t s . The mode l i s based on fundamental phys ica l thermal pr inc ip l e s and app l i e s lamp parameters and universal c o n s t a n t s . The model was found to fa i thfu l ly emulate the stat ic and e lectr ical responses of a High Pressure Sodium lamp unde...

Dynamic Interaction of High Frequency Electronic Ballasts and Fluorescent Lamps

Fluorescent lamps are non-linear devices that exhibit negative resistance over the useful range of operation. At low frequency, this negative resistance peculiarity is passed through during each period of the AC driving current [1]. When the fluorescent lamp operates at high frequency, the negative resistance is associated with the average power rather than with the instantaneous, cycle by cycl...