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lamp ballast

   Also found in: Dictionary/thesaurus, Medical, Financial, Wikipedia 0.01 sec.
ballast
1. Coarse stone, gravel, slag, etc., used as an underlayer for poured concrete.
2. A device used to provide the required starting voltage and operating current for fluorescent, mercury, or other electric-discharge lamps.
3. Class P: A ballast for a fluorescent lamp which meets the requirements of the Underwriters’ Laboratories, Inc.; includes an automatic resetting thermal protector to remove the ballast from the circuit if its temperature exceeds a specified value.
4. Same as constant-wattage ballast.
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One area impacted by the drive for energy efficiency is the lamp ballast market.
Lighting efficiency by Gooch, Stephanie / Designfax
has introduced a single-chip fluorescent lamp ballast device with an active, critical conduction mode, boost-type power factor correction (PFC) method.
IR DEBUTS SINGLE-CHIP FLUORESCENT LAMP BALLAST DEVICE by Electro Manufacturing
International Rectifier, IR([R]) (NYSE:IRF), a world leader in power management technology, today introduced the IRS2168D fully-integrated and protected high-voltage integrated circuit (HVIC) for advanced electronic linear fluorescent lamp ballasts which incorporate active power factor correction (PFC).
IR's Fully-Integrated, Protected High-Voltage IC with PFC Simplifies ... by Business Wire
 
 
 
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