Encyclopedia of Color Science and Technology

Living Edition
| Editors: Ronnier Luo

Electrical Control Gear for Lamps

  • Wout van Bommel
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27851-8_259-4

Definition

Device(s) in the electric lamp circuit of gas discharge and solid-state lamps which limits the lamp current to the required value and ensures that the lamp can be started and once started can be operated stably over a longer period.

The devices needed are called igniters, ballasts, and, for LEDs, drivers.

Igniters

Most of the gas discharge lamps have such a high internal resistance that they need a voltage peak, higher than the normal operating voltage, to initiate the discharge.

Igniters for Fluorescent Lamps

In most fluorescent lamp circuits, the electrodes are preheated for a few seconds before a high-voltage peak is applied across the lamp to initiate the discharge. Preheating of the electrodes facilitates the emission of electrons. Glow-switch starters were often used for this purpose. However, their harsh peak voltages have a negative effect on lamp life. Electronic starters with exactly the same functions as the glow-switch starter, but with a better-controlled...

Keywords

Fluorescent Lamp Voltage Peak Main Voltage Lower Power Loss Electronic Ballast 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.van Bommel Lighting ConsultantNuenenThe Netherlands