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is normal that my bluray makes a little noise?only with 10440 battery.

realista

realista

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i ask to all readers... one question:
i own a 80mw bluray laser pen from olike... it is very good... i don't notice any difference between using fresh alkalines 1.5 v. or nimh at 1.29 v.
but i have a 10440 lion and a spacer.....and is NORMAL that if i use a 10440 lion battery i can HEAR a little noise when i put the hear near the laser?it makes a bit of noise when i press ON..... i am afraid this could break the laser.... so i continue to use nimh rechargeable batteries...that does not procute sound/noise.

baybe it is a normal sound produced by the potentiometer or somewhat....but i wait for some specialist member :)
 





D

Deleted member 8382

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This sounds to me like a driver working so much. Remember these cells charge to 4.2V when you are suposed to run it at 3V.

I'm not an specialist, but hope this helps :)
 
N

nikokapo

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Yes, it is. Same thing happened with the v3 Box. It's a high pitched noise ranged from 12-14kHz IMHO, could be from the driver, I never asked why that happened, but I'm pretty sure it's not coming from the battery. The difference in voltage may produce the sound, though (that's the reason you aren't hearing it when you use 1,5v alkalines).

Don't worry, it isn't going to blow up anytime :)
 
realista

realista

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@Hallucynogenyc: the battery is at 3.7 volt about.... not at 4.2. this is why this worries me...it is not so much voltage more than 3v...

@nikokapo: i know it does not come from battery :) i've never thought it. but i don't know why change.

MMHH... i tryed also with 1.41v alkalines and the laser DOES make the same sound..... so i think it is safe. mmhh.. maybe the laser under 2.8v does not make sound.. and over this voltage.. yes.

i must told this thing to susie... however.. until i will buy a laser power meter... i can't notice different power betwerrn a lion and nimh. but i know that using ion... these pen should have more mw... i heard some member that using 10440 ..got 15..20mw plus... from a 5mw cheap greennie.
 
D

Deleted member 8382

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3.7V is the rated voltage, take a meter and see. They charge to 4.2V

The more the driver is working the more noise, so just don't overdrive the laser!
 
realista

realista

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Hallucynogenyc said:
3.7V is the rated voltage, take a meter and see. They charge to 4.2V

The more the driver is working the more noise, so just don't overdrive the laser!
Click to expand...

it is REALLY at 3.7... checked :) i know 4.2v fully.... but it is a used lion.. it is not fresh.however.. OK.. it seems tyhat is not a real problem....... this noise
 
matrixcs

matrixcs

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realista said:
so.. also with 3 volt total.. is there too much voltage for the driver?
could my 80mw bluray be an overpowered true 20mw or somewhat?
Click to expand...

your driver can only take up to 4.2 v thats it..

i guess what o-like means is that you can use 1 10440 battery and use a custom spacer to connect it..

because 2 10440 battery will burn your driver if you continue to use it..

better yet stick with alkalines...
 
jander6442

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turn the laser on and move it in a straight line very fast. is it doing this

------------------- or this _______________________________

I have 1 LOC that I think I might have overheat a driver (V4) component when assembling that has a frequency humm.

It is more profound when in the focusing stage of operation and loudest when
focused to burn.:thinking: I'm think one of the switching circuits is fried open.?
 
matrixcs

matrixcs

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jander6442 said:
turn the laser on and move it in a straight line very fast. is it doing this

------------------- or this _______________________________

I have 1 LOC that I think I might have overheat a driver (V4) component when assembling that has a frequency humm.

It is more profound when in the focusing stage of operation and loudest when
focused to burn.:thinking: I'm think one of the switching circuits is fried open.?
Click to expand...

nice but this laser is from o-like.com so i guess it has a different driver setup. but good info too i guess he can try to do what you said...
 
Benm

Benm

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Its fairly normal for switching drivers to be audible when they operate at audible frequencies - its just a tiny movement in the coil of the switching driver, and normally no cause for concern.

It can happen at/from a certain voltage level, some drivers vary the frequency to maintain constant output, though most vary only pulse width.
 
MarioMaster

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The flexdrive and the o-like drivers are switchmode and oscillate when running, the noise comes from the little inductor on the board. You just happen to hit a frequency that resonates in the audible range of hearing. This doesn't necessarily indicate a problem but may be due to excess stress on the driver from the higher voltage.
 
matrixcs

matrixcs

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MarioMaster said:
The flexdrive and the o-like drivers are switchmode and oscillate when running, the noise comes from the little inductor on the board. You just happen to hit a frequency that resonates in the audible range of hearing. This doesn't necessarily indicate a problem but may be due to excess stress on the driver from the higher voltage.
Click to expand...

i see.. well i did try now on my 80mw o-like 405nm pen and there is no sound.. i guess mine has a different frequency, im using 2 10440 batteries im not hearing anything and the pen is working, but, one thing i see is that the driver heats up more..
 
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