Relations between preionization density distribution, electrode design, and efficiency in high‐pressure discharge‐excited gas lasers

1993 ◽  
Vol 63 (21) ◽  
pp. 2866-2868 ◽  
Author(s):  
M. M. Turner
Keyword(s):  
High Pressure ◽  
Density Distribution ◽  
Electrode Design ◽  
Gas Lasers ◽  
Pressure Discharge ◽  
High Pressure Discharge

High-power, high-pressure, discharge-heated copper vapor laser

1979 ◽  
Vol 30 (1) ◽  
pp. 70-74 ◽  
Author(s):  
I. Smilanski ◽  
G. Erez ◽  
A. Kerman ◽  
L.A. Levin
Keyword(s):  
High Pressure ◽  
High Power ◽  
Copper Vapor Laser ◽  
Vapor Laser ◽  
Copper Vapor ◽  
Pressure Discharge ◽  
High Pressure Discharge

Simulation And Development Of Electronic Ballast for High Pressure Discharge Lamps

2021 ◽  
pp. 86-92
Author(s):  
Vladimir G. Kulikov ◽  
Albert A. Ashryatov
Keyword(s):  
High Pressure ◽  
High Frequency ◽  
Acoustic Resonance ◽  
High Frequency Current ◽  
Electronic Ballast ◽  
Advantages And Disadvantages ◽  
Test Operation ◽  
Pressure Discharge ◽  
Frequency Current ◽  
High Pressure Discharge

The advantages and disadvantages of using electromagnetic ballasts for power supply of high pressuredischarge lamps (HPDL) are considered. The advantages of using electronic ballasts for supplying HPDL are shown. The analysis is fulfilled of the operation of the HPDL when powered by a high-frequency current, in particular, high-pressure sodium lamps (HPSL). It is indicated that when high-pressure discharge lamps are supplied with a high-frequency current, acoustic resonance may appear. The basic requirements to be met by electronic ballasts for HPSL have been determined. The topology of construction of electronic ballasts for supplying HPDL with a capacity of up to 1 kW has been selected. It has been established that half-bridge converters with inductive ballast and active power factor corrector (PFC) allow maintaining a stable power on the lamp while changing its parameters and efficiency. Mathematical modelling of the electronic ballast based on a half-bridge converter and an ignition device for the sodium discharge lamps DNaT type has been carried out. According to the proposed topology, the electronic ballast was developed for a DNaT 600 lamp powered from the 380 V network. Test operation of the lamps confirmed the reliability of the proposed electronic ballast topology.

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