Principles of Operation, Circuits, Troubleshooting, Repair for Fluorescent Lamps

[marcelino]

Just want to share...

a good details reference for understanding the concept and operation of fluorescent lamps. Troubleshooting is also included.

Sam's F-Lamp FAQ
Fluorescent Lamps, Ballasts, and Fixtures
Principles of Operation, Circuits, Troubleshooting, Repair
link:http://members.misty.com/don/f-lamp.html


ngayon ko lang to nalaman (perhaps i was not paying much attention).

Did you know that there is a thermal protector for most of ballast below 20W? It opens due to overheating.
hehehehe
(honestly, ngayon ko lang to nalaman)

[insomartin]

HINDI na dapat ginagamit yung balast and starter for driving fl bulbs. pwede naman kasi na hindi na gamitin yung "HEATING" filament inside. mura na lang naman yung inverter types na solid state fl driver. actually cfl na lahat gamit ko dito sa bahay. i won't put my money repairing ironcorebalast at kakapalit nang starter. kung nagtitipid ka go cfl.

may kit ako na nabili sa deeco nung bata ako. 12v fl electronic balast. maganda lang yung winding nang transformer ko kya buhay pa. 

"When the lamp is off, the mercury/gas mixture is non-conductive. When power is first applied, a high voltage (several hundred volts) is needed to initiate the discharge. However, once this takes place, a much lower voltage - usually under 100 V for tubes under 30 watts, 100 to 175 volts for 30 watts or more - is needed to maintain it."

[marcelino]

^ yeah! i also agree with you...
i am just trying to share something to ponder on. its just most if not all never paid attention of understanding how fluorescent lamp (classic or solid state driver) works. Most of us simply replace a blackened tube-ends if it does not turn-on. Pero di naman pala laging ganun ang troubleshooting.

I have to do a quick google to post again the advantages and disadvantages of solid state over ballast.
http://www.scif.com/safety/losscontrol/Article.asp?ArticleID=320

[insomartin]

here's a very cool test... kung yung TV or monitor mo is CRT. (exept sa mga naka 120hz na monitor) wave your finger fast.  kapag nag putol putol daliri mo. get a better monitor or go lcd. same with FL bulbs. kapag nag fli-flicker bulb mo. kadalasan hindi mo mapapansin kasi mabilis yung refresh rate at 60hz but nakakastrain nang mata.

primitive na flicker checker device yung waving finger movement. hahahaha.

[marcelino]

here's a very cool test... kung yung TV or monitor mo is CRT. (exept sa mga naka 120hz na monitor) wave your finger fast.  kapag nag putol putol daliri mo. get a better monitor or go lcd. same with FL bulbs. kapag nag fli-flicker bulb mo. kadalasan hindi mo mapapansin kasi mabilis yung refresh rate at 60hz but nakakastrain nang mata.

primitive na flicker checker device yung waving finger movement. hahahaha.

wow!!! ganda naman ng test na yan... ganda point for you!

di yan alam yan ah.... hheheheh

[robbietan]

Just want to share...

a good details reference for understanding the concept and operation of fluorescent lamps. Troubleshooting is also included.

Sam's F-Lamp FAQ
Fluorescent Lamps, Ballasts, and Fixtures
Principles of Operation, Circuits, Troubleshooting, Repair
link:http://members.misty.com/don/f-lamp.html


ngayon ko lang to nalaman (perhaps i was not paying much attention).

Did you know that there is a thermal protector for most of ballast below 20W? It opens due to overheating.
hehehehe
(honestly, ngayon ko lang to nalaman)

ballasts are there to limit the current flow to the flourescent tube. without the ballast, the tube would burn out fast due to the uncontrolled amount of current that will pass through it.

[strobo]

mga bos,
bakit ang dali masunog ng ballast ngayon, wala pa 6 months sira na, tapos damay pa yung flourescent tube, biglang liliwanag tapos mamatay, tapos amoy sunog, kaya tuloy dalawa papalitan ballast at yung flourescent tube.

samantalang yung mga antigong flourescent, flourscent tube lang ang papalitan, minsan starter pero ballast buhay pa hanggang ngayon.

[robbietan]

mga bos,
bakit ang dali masunog ng ballast ngayon, wala pa 6 months sira na, tapos damay pa yung flourescent tube, biglang liliwanag tapos mamatay, tapos amoy sunog, kaya tuloy dalawa papalitan ballast at yung flourescent tube.

samantalang yung mga antigong flourescent, flourscent tube lang ang papalitan, minsan starter pero ballast buhay pa hanggang ngayon.

baka made in china? those thingies, notwithstanding workmanship, could be rated for 50Hz. put that in a 60Hz setting, plus undersized to the flourescent tube, plus the made in china - you have a recipe for disaster

[Cross Talk]

maganda yung mga germany made na ballast. yung pwede din pang slim and circular. sa cash and carry ko ata na kita yun.

[ahlburuto]

mga bos,
bakit ang dali masunog ng ballast ngayon, wala pa 6 months sira na, tapos damay pa yung flourescent tube, biglang liliwanag tapos mamatay, tapos amoy sunog, kaya tuloy dalawa papalitan ballast at yung flourescent tube.

samantalang yung mga antigong flourescent, flourscent tube lang ang papalitan, minsan starter pero ballast buhay pa hanggang ngayon.

Ang malimit na ganyang brand ng ballast eh yung firefly. kaya if I where you dont buy those brand. marami ng case samin dito na ganyang brand na sumasabog yung ballast... Halos di naman nagkalayo yung price nila ng mga kilalang brand like osram ballast at yung iba pang germany. Yun na lang ang bilin mo.....

BTW dapat nga pala pag nagpalit ka ng FL tube eh palit ka din starter para mas tumagala buhay ng FL tube mo...

BR

[graSS]

babasahin ko pa to...     
tnx 4 sharing tita marce