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O-Like Bluray Driver






Glutton

Glutton

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worked just fine for me with those instructions

maybe your luck is running out:crackup: j/k

EDIT: I know this might sound weird saying this to a vet but... did you hook it up correct?

both vcc+ are inputs and the others are outputs. They have it set up to work case positive which I thought was odd.

seems weird you had 2 fail and I have had 2 win
 
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daguin

daguin

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Glutton said:
worked just fine for me with those instructions
maybe your luck is running out:crackup: j/k
EDIT: I know this might sound weird saying this to a vet but... did you hook it up correct?
both vcc+ are inputs and the others are outputs. They have it set up to work case positive which I thought was odd.
seems weird you had 2 fail and I have had 2 win
Click to expand...


Yeah. That's why I asked. Having two fail is VERY unlikely.

I have no ego here. Sometimes the simplest thing is the thing we overlook.

Peace,
dave
 
mkdive

mkdive

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daguin said:
Sometimes the simplest thing is the thing we overlook.
Click to expand...

I know when I have a problem & it turns out to be a simple overlook....Im glad it was an easy fix...but frustrating as hell I over looked something that small!
headscratch.gif
 
daguin

daguin

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Follow-up question.

I did some more work with it last night. It is a boost driver but acts like a linear driver.

I set it at a110mA with 4.5V. When I tested it with 3V it only put out ~60mA. I thought maybe there was something with my PSU so I tested it with primary vs. rechargeable battery (Rkcstr bluray test load). The result was the same.

I had a couple of minutes this morning so I hit this again. Were you able to get full current out of 3V?

Has anyone else observed the same conditions?

Peace,
dave
 
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lazerov

lazerov

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I got the one I have to work with few modifications.
First, remove the black diode near the potentiometer and solder a wire across the pads (you can just bypass it with the wire). This diode serves as reverse voltage protection but drops about 0,8V. DX blu-ray pens have a switch instead of this diode (they use the same driver; check here).
Second, on the PCB there are two 4,7Ohms (4R7) SMD resistors in parallel. It appears they are limiting the current. I replaced them with one bigger 1Ohm SMD resistor. The pinout I'm using is from O-like site.
This way I was able to get a maximum of 200mA of current at 4,0V and 135mA at 3,0V.
 
Glutton

Glutton

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daguin said:
Follow-up question.

I did some more work with it last night. It is a boost driver but acts like a linear driver.

I set it at a110mA with 4.5V. When I tested it with 3V it only put out ~60mA. I thought maybe there was something with my PSU so I tested it with primary vs. rechargeable battery (Rkcstr bluray test load). The result was the same.

I had a couple of minutes this morning so I hit this again. Were you able to get full current out of 3V?

Has anyone else observed the same conditions?

Peace,
dave
Click to expand...

I experienced the same thing.

With a 3.0v CR2 I could not get full current out of the driver, it had a similar current to yours. With a CR2 3.0v my laser outputs about 40mW with the driver maxed out.

I switched it to a 3.6v CR2 (giving off 4.2v) and the current jumped significantly. I'm not exactly sure what the jump in current was because I didn't test... but my laser went from putting out about 40mW straight to 120mW (PHR)

EDIT: so wait... you got it working? What was the problem?
 
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daguin

daguin

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Glutton said:
I experienced the same thing.

With a 3.0v CR2 I could not get full current out of the driver, it had a similar current to yours. With a CR2 3.0v my laser outputs about 40mW with the driver maxed out.

I switched it to a 3.6v CR2 (giving off 4.2v) and the current jumped significantly. I'm not exactly sure what the jump in current was because I didn't test... but my laser went from putting out about 40mW straight to 120mW (PHR)

EDIT: so wait... you got it working? What was the problem?
Click to expand...

Yeah. As I said -- the simple things. I was putting postive to diode+ instead of VCC+. I am cute, but not perfect.

Thanks for the head's up

Peace,
dave
 
yobresal

yobresal

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I'm in the middle of a build with this driver and don't know how to hook up this driver. Please call me. I need just a couple minutes of help. Please ASAP
 
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Glutton

Glutton

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Thats a sexline or something isnt it?:drool:
 
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yobresal

yobresal

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While my soldering iron still has butane would be great.
P.s. Thanks for quoting my # I was planning on deleting it after help was provided. Please do the same.
 
lasersbee

lasersbee

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I'm sure a lot of members would call you....
if you had a 1-800 number...:san:

Jerry
 
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