Download - CFL Teardown
CFL
CFL TeardownCompact Fluorescent LampFulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Safety warning labels and product informationFulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Vent for circuit board insideDiscoloration from excess heatFulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
When system is powered on current excites the Mercury liquid changing it into a Mercury vapor and mixing it with argon gas to produce white light.Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
http://www.doublexscience.org/how-fluorescent-lights-work-quantum-mechanics-in-the-home/
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Here is a sequence of the CFL turning on as voltage is increased.
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
A video of the bulb power on cycle.
COPPER SIDE OF BOARD
WIRES INTO MAIN TERMINALS OF LIGHT
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
We remove the cover to show the control circuitry circuit board.
BASEBALLAST HOUSINGBALLASTLIGHT- CONTAINS ARGON GAS AND MERCURY VAPOR
PHOSPHOR COATINGFulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Lots of circuitry packed inside
DRIVER COIL A.KA. DRIVER TRANSFORMERTRANSFORMERVOLTAGE FED HALF BRIDGEBI POLAR POWER SWITCHING TRANSISTORThe driver transformer saturates at a defined current level so that the lamp current is controlled in an indirect way.Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
TYPICAL CFL CONTROL SCHEMATIC DRAWING Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
http://www.nxp.com/documents/application_note/AN00048.pdf
Interesting to Compare the CFL to an Incandescent light bulb and schematicFulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
http://www.designrecycleinc.com/led%20comp%20chart.html
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122
Fulton-Montgomery Community College TEPP Technological Education Pathways Partnership NSF DUE 1003122