could you post a pic of it?, my guess if it's from the laser head and has two fine wires then it may be a thermistor or other temp feed back, even if not used it may have been installed anyway
Senior Member
could you post a pic of it?, my guess if it's from the laser head and has two fine wires then it may be a thermistor or other temp feed back, even if not used it may have been installed anyway
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu
Junior Member
Yep you're exactly right. Mimi just got back with me. Thanks!
edit:
Here's a link to a video I took last night (first timeline attempt in Quickshow). Not that impressive yet, but it's getting closer!
https://www.youtube.com/watch?v=7m9V...ature=youtu.be
PS: Next time i'll film better haha
Last edited by tej2795; 06-12-2015 at 08:27.
Junior Member
I'm trying to get the red module hooked up. The data sheet is here. http://www.mitsubishielectric.com/se...1p73_p1245.pdf
I'm not sure what I'm doing wrong but I'll try to describe what I've got as best as possible.
The diode is from DTR its a 638nm 500mW. The driver is this one. http://m.ebay.com/itm/231566894126?nav=SEARCH
And the power supply is an LED wall adaptor. Mean well ELN-60-9. http://www.meanwell.com/webapp/produ...px?prod=eln-60
When I tested the current coming in from the adaptor on the driver board I got a reading of like 1.09mAh 9V (suppose to be 5amp 9v). I also got a low current reading going into the diode. The voltage going into the diode is high though.
I did not have an analog signal coming into the driver board.
I'm not quite sure if this is a pot adjustment error or a power supply error or an error because of the absense of an analog signal....Or something else :/
For the wiring:
Blue to AC white/neutral. Brown to AC black/hot/120V. No ground wire since AC-DC. The red coming out is soldered to VCC and the black is soldered to GND.
I've got a wire soldered at ANG and it goes to the breakoutboard and the GND next to it goes to the breakout board too.
Coming out of the diode is red and black. I have red soldered to LD + and black soldered to LD-.
Any advice would help
Thomas
Last edited by tej2795; 06-16-2015 at 20:32.
Senior Member
i current meter in my experience is not in mah or in ah amp hours,(that rating is for batteries) it's the real current at that time, so 1.09 is 1.09 milliamps and from reading the ebay site for full output power you need the analog control voltage at a logic high or at 5 volts, with the controll pot turned down all the way so you are in full cut off, then with the analog voltage set at above 0 volts, I tend to short the diode leads just to make sure the control pot is at it's lowest setting before connecting the diode and while monitoring the current i turn up the pot till the desired power level. To get output the analog line will need to be pulled up, if i am reading it right leaving it floating or at ground will be in the off state
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu
Junior Member
Thanks Draco,
Im guessing counterclockwise is turning the pot down?
And the power level Im trying to get at is around the "typical operating voltage/current" from the datasheet?
Senior Member
The reason i do a test short is i am suspect of it being counterclockwise, just in case, but in my experience that is the case
and yes you want to adhere to the spec sheet almost like it's the bible, outside of the spec sheet is unpredictable, there are cases where you can get more power then the spec sheet but at my budget i don't take the risk lol
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu
Junior Member
Dang I just can't get it. It seems like I'm getting the same reading on the multi-meter every time. Even when I output the minimum analog signal I'm still getting a reading of 9.07 V to the diode and 1.09mA. Turning the pot doesn't appear to be changing anything. Could this be a soldering error? :/
Senior Member
is the multimeter probes moved over for the current reading posts, some have a seperate post for that, or the fuse could have failed in the meter for the current reading, most have a fuse in series. you could try bypassing the meter and use an led insted of the laser diode?
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu
Junior Member
I got the blue diode up and running. I'm having trouble with the red still. I can't get it to lase at all. It's not the driver so I'm thinking I may have blown it...
Senior Member
do you get any light from it? if it's the laser it's self i have seen them go LED and consume a lot of current for just a little flicker of what was once there
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu
Posting Permissions
Reply With Quote
