DR6: Difference between revisions
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GELcore aka GE Lighting aka current powered by GE model of traffic signal light designated DR6. This is documentation of units pulled from roughly a decade of active service. | GELcore aka GE Lighting aka current powered by GE model of traffic signal light designated DR6. | ||
This is documentation of units pulled from roughly a decade of active service. | |||
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[[File:G21202B.jpg]] | |||
As of 2013 GE offers it's 14th version of it's LED based light bosting over 6,000,000 sold world-wide | As of 2013 GE offers it's 14th version of it's LED based light bosting over 6,000,000 sold world-wide | ||
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Under the hood there is quite a bit of circuitry given that this is a "dumb light" controlled externally by being flipped on and off. This is at the least a complex constant current supply with a fairly high power factor. Later models include compensation for continuous brightness after years of use and environmental monitoring and compensation features. | Under the hood there is quite a bit of circuitry given that this is a "dumb light" controlled externally by being flipped on and off. This is at the least a complex constant current supply with a fairly high power factor. Later models include compensation for continuous brightness after years of use and environmental monitoring and compensation features. | ||
This particular DR6 Green Arrow did teh job of a single component, a light bulb, with a mere 106 discrete components, 44 of them being actual green LEDs, along with a PCB weather tight case and fasteners. | |||
*LM2903N Comparator, Dual, Low Offset Voltage | *LM2903N Comparator, Dual, Low Offset Voltage | ||
Revision as of 08:51, 19 July 2017
π₯
GELcore aka GE Lighting aka current powered by GE model of traffic signal light designated DR6.
This is documentation of units pulled from roughly a decade of active service.
As of 2013 GE offers it's 14th version of it's LED based light bosting over 6,000,000 sold world-wide
- http://www.gelighting.com/LightingWeb/na/images/traf192-ge-gtx-led-signals-120v-datasheet_tcm201-54219.pdf
- http://www.gelighting.com/LightingWeb/na/images/traf064-ge-gt1-arrow-signals-incandescent-look-led-datasheet_tcm201-54217.pdf
These were previously developed to conform to NEMA TS-2-1992, or the second revision of teh "Traffic Control" standard "TS-1", "TS-2" has since been updated, and super-seeded.
Inside of dismantled green arrow unit https://photos.app.goo.gl/PPONnfMPILU6VcAV2
Under the hood there is quite a bit of circuitry given that this is a "dumb light" controlled externally by being flipped on and off. This is at the least a complex constant current supply with a fairly high power factor. Later models include compensation for continuous brightness after years of use and environmental monitoring and compensation features.
This particular DR6 Green Arrow did teh job of a single component, a light bulb, with a mere 106 discrete components, 44 of them being actual green LEDs, along with a PCB weather tight case and fasteners.
- LM2903N Comparator, Dual, Low Offset Voltage
- MC34262 Power Factor Controller
- STP5NK80Z N-channel 800V 1.9Ξ© 4.3A TO-220 Zener-protected SuperMESHβ’ Power MOSFET
- MPSA42 High Voltage NPN Transistor
- TN2404KL 240V N Channel MOSFET
- X2 Capacitors, MOV, Zeners, Diode Bridge, Fuses