I don't like the part that you have to raise the input voltage, in many projectors the 5V PSU is also used to drive other lasers, with this solution you always need a separate PSU with the driver.
I wonder how many mA the driver can drive at 5,0V
I don't like the part that you have to raise the input voltage, in many projectors the 5V PSU is also used to drive other lasers, with this solution you always need a separate PSU with the driver.
I wonder how many mA the driver can drive at 5,0V
I don't know what is wrong with it. When it was delivered to me it was putting out around 100mw and, even though I have hardly used it, the power has dropped to around 20mw or less now. It's like it gets bad from just sitting unused. This unit is a warranty replacement unit for my original that also died in a similar way. My warrany expired a long time ago so I figured it would cost to much to ship to China and have repaired. Any ideas about what could be going on with it?
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No this is not correct.
I'm running 445nm diodes from 5V a powersupply, the only problem is depending on the voltage drop over the transistor/fet and shunt resistor you simply will not be able to run the diode at full power.
As you can see in the attached drawing the foreward voltage rises with the current, so even with a 1Volt drop over the driver you still should be able to run the diode at 400mW.
I was referring to full power.
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...No apologies needed, I just need MORE info!
Hi David,
Is the Peltier and thermistor mentioned above by Hobbybob actually included in the price mentioned in your post "LSR-PS-I is for $45 by 10pcs, $60 for one."
Or does one have to purchase these separately (if so, what is the cost)?
Cheers
Last edited by catalanjo; 10-11-2010 at 03:29. Reason: Answered Hobbubobs queries
Any more information about the lens? Want to know focal length, NA and transmittance. A couple of pics of the beam would be nice too.
Hi,
can anybody give me the meaning of the potentiometers on the driver (UR1-UR4). I am lost :-)
Thanks,
Yosh76