Dual lamp operating circuit for high pressure mercury discharge lamps

Determination of soluble bromine in an extra-high-pressure mercury discharge lamp by sodium hydroxide decomposition-suppressed ion chromatography.

We have established a simple method for assaying the quantity of soluble bromine in the discharge tubes of an extra-high-pressure mercury discharge lamp. Each discharge tube is destroyed in 5 ml of 10 mM sodium hydroxide, and the recovered sodium hydroxide solution is analyzed by suppressed-ion chromatography using gradient elution. We have clarified that this method can assay less than 1 micro...

Photolytic decomposition of saccharides with a high-output, low-pressure mercury lamp for voltammetric trace analysis.

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...

A Dynamic Pspice Model for High-Frequency Fluorescent Lamp with Continuous-Dimming Operation

Fluorescent lamps were first introduced to the world in the 1939 World’s Fair. They are low-pressure mercury discharge lamps. Since then, the fluorescent lamps have been the mainly lighting source due to their merits of high color rendering, soft-visualization, long life, and energy-saving. Unfortunately, however, all gas discharge lamps cannot directly connect to a voltage source and require a...

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...