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Sylvania Mini-Lynx 15W with fast start

Sylvania Mini-Lynx 15W with fast start

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Back in the 90's I remember that I was always fascinated by the very compact ballast compartment of these sylvania CFLs. Yesterday I've found this EOL sample and I've decided to dismount it to see how it was engineered.
To my surprise I've found that not only the ballast is very small, but it has a sort of fast start system that increase the lamp current until the lamp warm up:
The ballast coil can regulate it's inductance by a moving airgap, the small ferrite cylinder is out of the inductor magnetic circuit when the lamp is cold and them when the lamp warm up it's pushed into the inductor by the bimetallic coil.
That's really a good idea and impressive engineered in a very small place.
The PTC resistor for warm start and some capacitor are placed direcly under the tube and the rest of the ballast is into the E27 cap (and full of some sort of resin).

Mini-Lynx.jpg osramdulux.jpg youtube_MAArf1G1QVA.jpg STARTE2MOSSCH.JPG

Light Information

Light Information

Manufacturer:Sylvania
Model Reference:Mini-Lynx 15W
Lamp
Lamp Type:CFL
Base:E27
Electrical
Wattage:15W
Voltage:230V
Optical
Lumen Output:900
Color Temperature:2700k

File information

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Filename:Mini-Lynx.jpg
Album name:Kappa7 / Electronic ballast circuits
Keywords:Lamps
File Size:661 KB
Date added:Oct 01, 2017
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Date Time:2017:10:01 15:17:56
DateTime Original:2017:10:01 14:30:07
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