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Old 07-02-2011, 04:17 AM #561
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

Jib, you are the new Dr.Lava

Im still building my list of components for the ADJ.PSU...

I'l get back to you hopefully within the next few days

+1 rep for your help


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Old 07-02-2011, 04:34 AM #562
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

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Originally Posted by LaZeRz View Post
Jib, you are the new Dr.Lava
I hope not! That has negative implications these days. :/

Quote:
Originally Posted by LaZeRz View Post

Im still building my list of components for the ADJ.PSU...

I'l get back to you hopefully within the next few days

+1 rep for your help
Can you get it in by Tuesday? ... I have a bunch of stuff to order too, this way it can ride with my stuff and you wont have to pay anything for Mouser shipping it to me.
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Old 07-02-2011, 06:51 AM #563
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

Heh, I meant Dr.Lava before he went astray with his customer service
If anything, your much better then him

I'l have it done by Sunday
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Old 07-02-2011, 07:11 AM #564
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

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The only purpose for these is to break the 1.5A barrier on a single cell, so initially it will have set resistors for 1.8A(+/- resistor variance). I also hope to get this up to 2.8A to power XML LED builds.

The first batch will be available in about 3 weeks.
Hey do you think there may be room to put a pot on there?
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Old 07-02-2011, 08:05 AM #565
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

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Hey do you think there may be room to put a pot on there?
Not in the current 17mm design. I would have to toss the round shape w/ contact pad and move to rectangle design so I can use both sides ... or make it bigger.
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Old 07-02-2011, 08:09 AM #566
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

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I am indeed out for the moment ... I have parts but I wont have time to build them until the weekend. When they are back in stock ill post here. And don't worry about the extra for international shipping, Ive stopped collecting it since I put in the PP buttons.
have you given thought of selling "kits" to save yourself the trouble of assembling them all?
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Old 07-02-2011, 08:32 AM #567
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

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have you given thought of selling "kits" to save yourself the trouble of assembling them all?
I have, but all the parts on these are SMD and not everyone has the means to assemble them properly. Now that I have a reflow oven and DIY stencil, the only real pain in the arse is me playing human pick and place machine.
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Old 07-02-2011, 09:03 AM #568
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

I was just wondering, I plan to try making a few LM1117 drivers for myself (not for resale, I don't want to take away from your business). But I was just wondering, was there a reason you chose to use the DPAK package instead of the SOT-223 package? I can't seem to find DPAK ones for cheap, so I was just wondering why you went with the DPAK type (perhaps they can handle the heat better? I don't know).
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Old 07-02-2011, 09:09 AM #569
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

Quote:
Originally Posted by Alexizupinhea View Post
I was just wondering, I plan to try making a few LM1117 drivers for myself (not for resale, I don't want to take away from your business). But I was just wondering, was there a reason you chose to use the DPAK package instead of the SOT-223 package? I can't seem to find DPAK ones for cheap, so I was just wondering why you went with the DPAK type (perhaps they can handle the heat better? I don't know).
You got it ... the SOT-223 can only realistically handle up to 800mA before it starts to hit thermal shutdown.
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Old 07-02-2011, 09:15 AM #570
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

Thanks for the help. In that case, perhaps you should use the SOT-223 on your 444mA and 501mA options in order to save on cost (although I'm sure you get your parts cheap anyway). But then again, it's hard to beat prices around .144/pc. 100 x AMS1117-ADJ LM1117 1117 ADJ 1A Voltage Regulator | eBay

Edit: Last question, does the capacitance used matter (is any capacitor good enough, or should it be specifically 10uF like i've seen a couple of times.)?

By the way, +rep for the help

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Old 07-02-2011, 09:22 AM #571
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

10uF ceramic ... anything else and your driver might not be stable.
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Old 07-04-2011, 05:45 AM #572
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

1.3-1.6A drivers are back in stock.
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Old 07-04-2011, 05:58 AM #573
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

Can I run the 500mA driver with 2 Li-ions? I see you listed 6V min for a 4V load and partially discharged Li-ions would only put me at like 7V with a 6V load.
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Old 07-04-2011, 06:48 AM #574
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

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Can I run the 500mA driver with 2 Li-ions? I see you listed 6V min for a 4V load and partially discharged Li-ions would only put me at like 7V with a 6V load.
Yes ... combined, your li-ion cells should stay above 7.5V for around 80% of its discharge cycle which is plenty of overhead for for a 6V load. I would expect a total drop-out of regulation @ 7V.
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Last edited by jib77; 07-04-2011 at 06:52 AM.
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Old 07-05-2011, 02:50 PM #575
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

can i connect 3 10440 batteries to the 1.8A driver? (i'm sorry if this question has been answered already)
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Old 07-05-2011, 03:14 PM #576
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Default Re: FS: Jibs Linear Drivers - 500mA, 1.3-1.6A, 1.8A

Quote:
Originally Posted by maximdooijes View Post
can i connect 3 10440 batteries to the 1.8A driver? (i'm sorry if this question has been answered already)
No, because the Absolute Max VIN is 10V.
No, because 10440's could not possibly provide enough current to make 1.8A.

You really need 2x 18650 LowR/IMR type cells or bigger. 2x IMR 16340's will work, but the run time will suck.
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