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Old 09-22-2007, 03:04 AM #33
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Chilmo,
I agree!

Laser power is a touch and go thing.

Ideally: I'm thinking to switch between high-current and a "simmer"(LOW)current at the perfect duty cycle as to not over ablate that precious tiny LASER chip sitting on its massive heat sink. *I learned from CO2 laser disiplines/mechanics that the right width/freq. of pulses; will make the most eff. cut!!!!!!!!

I now, want to claim: If you use entangled LASER beams & a coincedence timing detection pulse triger circuit in referance with the entangled beams, just right; it could increase effectivness greatly. Entangled detection could triger the pulse while the atoms are idle. ;D ;D ;D ;D

Think I'm kidding?
Just Google photon entanglation; you will find amazing facts/findings that you can't wrap your mind around!! It proves instantaneous action at a distance!
U know, like faster than light AKA/FTL
I think we sleep as real time passes without our observence. Conventional science won't/refuses to redefine, because its allready been cast in stone as not to be. > >
Science writes stuff off as "the uncertanty principle"

How cool is it being smarter than your peers??? ;D "I can't get no..." Rolling Stones
Oh, I'm not the first.. Telsa, Etc....., Etc...
Sometimes, it's good, true and better!!! Not too good to be not!

But; how hard was it to convince the church that everything doesn't revolve around Earth!



Remember: Einstein said;*"spooky action at a distance" "God does'nt play dice" (a contradiction)

All this comes down to is each LASER current pulse should be triggered by the simultanous detection of photons measured after there sourse paths have crossed.

I have PDF data if you want it.

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I,m ramblin again! ;D ;D

"I give it all away for humanity :'("
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Old 09-22-2007, 06:54 AM #34
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Quote:
Originally Posted by Laserrod
HEY!! KENOM
Why do you get to be a (YaBB)Ya Ba Da, Ba Do, Moderator already ;D ;D ;D

I want to be a moderator too, so I can edit negative LC members or exmem. posts!

Nobody gets hurt here on LASER P. Forum!!!!! " No FLASHING allowed >"

No potty mouth allowed either!

I don't get it. How did U get yaBB moderator status ???

MOST IMPORTANT: The right timing/modulation is everything when it comes down to a clean blast(ablastation)!! 8-) 8-) 8-)

Hey: let's start a LASER scull & bones cult just like......

8-) Micro-controlled LASERs rule!
Cause Kenom was like one of/ if not the first person in the forums to make a DVD laser in a flashlight.
His project is one of the main backing things of all our homemade lasers today. He kinda brought it to the forum.
That's why.
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Old 09-22-2007, 12:53 PM #35
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Comidt,
Oh, I stand corrected on that, and as such, Kenom is another LPF member that has earned highest respect. The moderator title seemed to me to look like a bug in the site programming because of the YaBB prefix,...... :-?.

Kenom, no offence man, I was thinking you were somebody else

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Old 09-22-2007, 06:21 PM #36
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Nah you guys got it all backwards. Kenom is moderator because he is THE MAN.
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Old 09-22-2007, 07:04 PM #37
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Actually I am only moderator over the experiments and modifications section. I appreciate the vote of confidence from Comidt and Death Angel and all those out there that feel that way.
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Old 09-24-2007, 04:10 AM #38
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Hey guys i was just wondering has anyone experimented with a PIC microcontroller to get the high frequency output for the chips ?
i was just wondering it would be pretty simple to just program a pic that would get the desired output and it could be easily changed as well.
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Old 09-24-2007, 07:08 AM #39
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

I have a PIC here and a programmer... the problem is that it is VERY expensive (compared to what it will be used for) and too big. An RC circuit is a much better route.

Good and intelligent suggestion nonetheless Those PICs have a very nice curve and are excellent at controlling things with extremely high frequency.

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Old 09-24-2007, 10:16 AM #40
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Quote:
Originally Posted by Daedal
Good and intelligent suggestion nonetheless Those PICs have a very nice curve and are excellent at controlling things with extremely high frequency.

--DDL
Well, not to sound bitter or anything, but why was the 555 timer idea from my thread a bad idea then? It has a small footprint, requires no programming, runs at up to 2mHz in astable mode and costs around $1.50. Not to mention that they are available at any electronics parts store like radio shack.
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Old 09-24-2007, 11:55 AM #41
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Well, 2 Millihertz is far too slow

Well, didn't know it would go so fast, but 40ns on/off translates to 12MHz. You can try it, go on! I would be glad to hear that it works.
In the meantime, I will try my own circuit for 2$

but yeah, try it!
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Old 09-24-2007, 12:10 PM #42
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

PIC16 too expensive :S well you could say that usually about $4-5 for a pic then crystal $4-5.
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Old 09-24-2007, 12:29 PM #43
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Quote:
Originally Posted by Lagoramus
PIC16 too expensive :S well you could say that usually about $4-5 for a pic then crystal $4-5.
Hey - WHERE are you getting them for that cheap ? I htought these were a lot more expensive ? Maybe I am thinking of something else, but isn't a PIC microcontroller what is used in Boomdog's DIY laser show ?? Someone correct me, please !!!!!
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Old 09-24-2007, 05:21 PM #44
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Ya I have a few PICs and I've used them for several things... but I never got one for less that ~$15

Do tell... :

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Old 09-24-2007, 06:03 PM #45
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Guys...

I'll give u all a good tip if your worried about the price of components...

If u need parts like micro-controllers and LDO regulators 555 timers and basically any IC's you can get all of them absolutely free just by ordering samples directly from the manufacturer... I have recently graduated from University and while I was there, I must have ordered well over 400 components absolutely free, prob worth >$1000, for my projects. I have personally ordered from Texas Instruments (which pretty much have everything you'll need), Microchip, MAXIM-IC and more.

Best thing is there here in a matter or days 3-5 usually. So, if you only prototyping or making a handfull of circuits just sample them for free. If you making large quantities then still order them from the manufaturer themselves (eg. micro from TI that will do anything you'll need for laser projects $<1 no xtal needed (runs of an internal oscillator)).

Hope this helps
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Old 09-24-2007, 07:33 PM #46
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

That is a very good point you have there, but sometimes they actually decide to check on your 'authenticity'. You have to supply good reason for them to supply you with the samples, by being an employee of a company int he field for example.

It does, nevertheless, beat buying in singles at times

Thanx;
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Old 09-24-2007, 07:51 PM #47
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Which is where being honest with them can help. I've gotten plenty of samples just telling them that it's for my hobby. Of course I try to buy from the places that have sent me free stuff in the past. ;D
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Old 09-24-2007, 08:26 PM #48
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Default Re: Pulsed Mode Driver circuit for SONY DVD 16x La

Quote:
Originally Posted by a_pyro_is
Of course I try to buy from the places that have sent me free stuff in the past. ;D
If the price is right... : I always prefer buying from the manufacturer because you end up getting more 'freebies' that make it worth it... but sometimes it's just outright expensive! :-?

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