I found that the power not as strong as before, when I look into the diode I found it like blinking! then I shine it on a wall and move around I found it's actually pulsed!!!! I don't know what happened here, has anyone got this problem??? it supposed to put out 150mw but only around 70mw now! help!! It's not a loose in connection, It is definitely pulsed it has a very regular interval between each pulse.
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ArcticMyst Security by Avery
OMG my leadlight with flexidrive became pulsed!!!
- Thread starter iohutom
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Re: OMG my leadlight with flexidrive became pulsed
My pocket pal does that on low batteries, <2.4V.
Change them and it should be fine.
My pocket pal does that on low batteries, <2.4V.
Change them and it should be fine.
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Re: OMG my leadlight with flexidrive became pulsed
Dunno. I guess that it can't keep up at such a low voltage, so it makes pulses with decreasing duty cycle or current rather than just shut down.
Dunno. I guess that it can't keep up at such a low voltage, so it makes pulses with decreasing duty cycle or current rather than just shut down.
Switch
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Re: OMG my leadlight with flexidrive became pulsed
Yea, there was another thread about this effect.Mine just shuts off though.
Yea, there was another thread about this effect.Mine just shuts off though.
rathat
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Re: OMG my leadlight with flexidrive became pulsed
I thought mine was pulsed so i replaced the batteries but it didn't help, than i realized when i shake it that batts jiggle around and the laser blinks. I just put a spacer in.
I thought mine was pulsed so i replaced the batteries but it didn't help, than i realized when i shake it that batts jiggle around and the laser blinks. I just put a spacer in.
Zom-B
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Re: OMG my leadlight with flexidrive became pulsed
It does shut off, but when it does, the battery voltage starts to recover so the driver kicks in again. Result: an oscillatorFireMyLaser said:
Re: OMG my leadlight with flexidrive became pulsed
I believe it's because it's trying to charge / store energy for the boost and because there isn't enough power boosting the LD is drawing energy faster then it can continuesly boost so it "dies" and once the LD stops lasing it stops drawing current for a split second till the energy is suficent agian then it repeats over and over. I'd be willing to bet that it would only last on "pulsed" for a few minutes at most till it wouldn't have enough energy at all and it would stay off, maybe the pulses would get more rapid first but then it would die completely. Just my theory.
I believe it's because it's trying to charge / store energy for the boost and because there isn't enough power boosting the LD is drawing energy faster then it can continuesly boost so it "dies" and once the LD stops lasing it stops drawing current for a split second till the energy is suficent agian then it repeats over and over. I'd be willing to bet that it would only last on "pulsed" for a few minutes at most till it wouldn't have enough energy at all and it would stay off, maybe the pulses would get more rapid first but then it would die completely. Just my theory.
Zom-B
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Re: OMG my leadlight with flexidrive became pulsed
That depends on the batteries. Some batteries like Lithium e3's have remarkable recovery abilities and wil recover like forever when changing between load (and getting empty) and no load
That depends on the batteries. Some batteries like Lithium e3's have remarkable recovery abilities and wil recover like forever when changing between load (and getting empty) and no load
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Re: OMG my leadlight with flexidrive became pulsed
Ace is right : It's more in the capacitors where the problem is. The battery charge is definitly to low to charge the caps in time because the LD drains to much juice while the batts doesn't give enough of it to the capacitors.
Ace is right : It's more in the capacitors where the problem is. The battery charge is definitly to low to charge the caps in time because the LD drains to much juice while the batts doesn't give enough of it to the capacitors.
Kage
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Re: OMG my leadlight with flexidrive became pulsed
Bingo! It's called a "relaxation oscillator".
Ace82 said:I believe it's because it's trying to charge / store energy for the boost and because there isn't enough power boosting the LD is drawing energy faster then it can continuesly boost so it "dies" and once the LD stops lasing it stops drawing current for a split second till the energy is suficent agian then it repeats over and over. I'd be willing to bet that it would only last on "pulsed" for a few minutes at most till it wouldn't have enough energy at all and it would stay off, maybe the pulses would get more rapid first but then it would die completely. Just my theory.
Bingo! It's called a "relaxation oscillator".
