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Old 03-26-2010, 09:49 PM #17
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

Quote:
Originally Posted by Bearded_Galaxy View Post
I've seen lots of mixed results with the SF-AW210 all over the forums, and I'm willing to risk 200mA on an SF, because there's a (what I would consider) reasonable chance of it being fine at 200mA.
I am sorry to burst your bubble but your SF-AW ain't gonna survive a month at 200mA.
Sorry.

Ask anybody here, nobody is risking SF-AW over 170mA for good life.


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Old 03-26-2010, 10:31 PM #18
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

I'm not too concerned with "good" life. I use my lasers so little that even "less than good life" turns into long life. I use them a little bit for a few days, then they sit on a shelf and do nothing for weeks, sometimes months, and maybe longer.
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Old 03-26-2010, 10:45 PM #19
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

Quote:
Originally Posted by Bearded_Galaxy View Post
I'm not too concerned with "good" life. I use my lasers so little that even "less than good life" turns into long life. I use them a little bit for a few days, then they sit on a shelf and do nothing for weeks, sometimes months, and maybe longer.
Really ?!
Wow... that's too bad, whadda waste...

Anyhow, Vref of LM3410X IC is 190mV, so 1 ohm of resistance will result in 190mA.
Suit yourself... but I strongly advise not getting over 170mA. Few extra mW are not worth a year of lifetime sacrificed.
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Old 03-26-2010, 10:50 PM #20
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

I'd just as soon go with a 1ohm resistor then and have 190mA. But, I'm still considering the O-Like one, which I want to know more about. I tried the search a while ago and didn't find anything valuable, but I'll try again.
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Old 03-26-2010, 10:53 PM #21
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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Originally Posted by Bearded_Galaxy View Post
I'd just as soon go with a 1ohm resistor then and have 190mA. But, I'm still considering the O-Like one, which I want to know more about. I tried the search a while ago and didn't find anything valuable, but I'll try again.
I know for certain that Bill used one of those,
billg519

Perhaps he will know more about it and it's possibilities.
Since it's limit is at 200mA, that is one more reason to go lower to 170mA, not to stress both driver and the diode.

You really are going to be sorry when you grab your laser one day, turn it on, and enjoy a flash of laser light for one second, and the faint LED glow the other.

Really man, why waste money?
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Old 03-26-2010, 11:12 PM #22
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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Originally Posted by Bearded_Galaxy View Post
I'm not too concerned with "good" life. I use my lasers so little that even "less than good life" turns into long life. I use them a little bit for a few days, then they sit on a shelf and do nothing for weeks, sometimes months, and maybe longer.
What!? Sit on a shelf and do nothing for months! I can't imagine spending one day without using my lasers.

Anyway Eudaimonium, those drivers are going to be really sweet when the PCBs will be printed instead of drawn. Also you can already count me in on buying some of those drivers when you'll be selling them.
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Old 03-26-2010, 11:14 PM #23
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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What!? Sit on a shelf and do nothing for months! I can't imagine spending one day without using my lasers.

Anyway Eudaimonium, those drivers are going to be really sweet when the PCBs will be printed instead of drawn. Also you can already count me in on buying some of those drivers when you'll be selling them.
Well, using all of your lasers is kind of tricky when you have Bill's or Mark's amount of lasers...

Anyhow, thanks for the support here guys, appreciate it.
In the new coherent light of the events, I will try to hurry up my plans for making those in bulk!
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Old 03-26-2010, 11:26 PM #24
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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Well, using all of your lasers is kind of tricky when you have Bill's or Mark's amount of lasers...

Anyhow, thanks for the support here guys, appreciate it.
In the new coherent light of the events, I will try to hurry up my plans for making those in bulk!
Well, when you do have that many lasers you just have to burn harder
Also I remember you mentioning something about resizing your boost converters. You said you'll have to expand their size. So how much bigger are they going to be now?
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Old 03-27-2010, 12:30 AM #25
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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Originally Posted by Eudaimonium View Post
I know for certain that Bill used one of those,
billg519

Perhaps he will know more about it and it's possibilities.
Since it's limit is at 200mA, that is one more reason to go lower to 170mA, not to stress both driver and the diode.

You really are going to be sorry when you grab your laser one day, turn it on, and enjoy a flash of laser light for one second, and the faint LED glow the other.

Really man, why waste money?
I don't see it as waste. Besides, the SF-AW210 diodes on O-Like (the only ones I've been able to find) suggest 220mA or less, and 190 is less than 220. I've been mostly successful pushing PHRs to 150mA, haven't had one die on me yet, about 1/2 dozen so far I've handled. I've killed them via other means, but not by running them at 150mA from a FlexDrive. So I figure, based on my history, I'm fine pushing the envelope a bit. And so far, I haven't found GGWs for less than $60, so an SF for $30 means if one dies, I'll just buy another and have learned my lesson. IF I can manage to sell one to a friend who's interested, I'll have enough money to get an SF-AW210, an inexpensive host, and a 405-G-1, in which case I'd be fine with 170mA. I'm hoping to break a personal barrier of 200mW of Blu-Ray (I've beat 200mW with an LPC diode, but 200+mW of Blu-Ray would be just awesome).
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Old 03-27-2010, 08:23 AM #26
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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Originally Posted by Bearded_Galaxy View Post
I don't see it as waste. Besides, the SF-AW210 diodes on O-Like (the only ones I've been able to find) suggest 220mA or less, and 190 is less than 220. I've been mostly successful pushing PHRs to 150mA, haven't had one die on me yet, about 1/2 dozen so far I've handled. I've killed them via other means, but not by running them at 150mA from a FlexDrive. So I figure, based on my history, I'm fine pushing the envelope a bit. And so far, I haven't found GGWs for less than $60, so an SF for $30 means if one dies, I'll just buy another and have learned my lesson. IF I can manage to sell one to a friend who's interested, I'll have enough money to get an SF-AW210, an inexpensive host, and a 405-G-1, in which case I'd be fine with 170mA. I'm hoping to break a personal barrier of 200mW of Blu-Ray (I've beat 200mW with an LPC diode, but 200+mW of Blu-Ray would be just awesome).
Well OK, have it your way, but be sure that your friend who is interested in buying your laser will give ya a call one day:"Yo, my laser is broken somehow, it is weaker than 1mW, what happened?!"

O-like data is incorrect there, you can see their graph (which belongs to Dave BTW), and on that graph you will notice a slight 'dent' on the blue line just at 180mA.
That is commonly reffered to as 'kink' of the blurays, and the current powering it should always be below that kink.
PHRs have the kink at 120mA, and so on.

GGW diodes, you can pick them up at HighTechDealz for $45, use coupon code for 10% off. Free shipping even! Kendall who owns the shop is helluva nice guy.

@x-zek, nope no size reference here, I only said redesign it, as in revise some component placement, or component choices.
I have to consult with IgorT further on if I am to make a boost converter capable of handling more than 300mA at bluray diode voltage drop.
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Old 03-27-2010, 08:40 AM #27
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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GGW diodes, you can pick them up at HighTechDealz for $45, use coupon code for 10% off. Free shipping even! Kendall who owns the shop is helluva nice guy..
I don't see them listed. He has harvested GGW diodes (the Blu-Ray in an Aixiz module, and the LCC red just plain), but not sleds.
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Old 03-27-2010, 08:47 AM #28
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

405nm 6x Blu Ray GGWH20L Sled [GGW-H20L Sled] - $49.45 : High Tech DealZ, Simplifying the LASER Hobby!

Where were you looking at exactly?
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Old 03-27-2010, 09:05 AM #29
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

I totally did, apparently I was just totally blind. What is the 10% off code you mentioned? Do you actually have one?
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Old 03-27-2010, 09:10 AM #30
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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Well OK, have it your way, but be sure that your friend who is interested in buying your laser will give ya a call one day:"Yo, my laser is broken somehow, it is weaker than 1mW, what happened?!"
I wouldn't push his like that, only my own personal ones.
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Old 03-27-2010, 10:01 AM #31
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

Coupon code PM'ed

Okay, don't worry about my current preferences, I was just suggesting,
Who knows maybe you get soem freakass SF-AW diode!

Good luck with your build!
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Old 03-27-2010, 03:13 PM #32
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Default Re: LM3410X based boost converter, SPARK driver! PART 2

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@x-zek, nope no size reference here, I only said redesign it, as in revise some component placement, or component choices.
I have to consult with IgorT further on if I am to make a boost converter capable of handling more than 300mA at bluray diode voltage drop.
Oh, so that's what you meant. That's good news because if they had gotten bigger, they probably wouldn't fit in small keychains. And that's one of the main reasons I want this driver.
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