Old 04-15-2018, 03:06 PM #1
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Default Help with AliExpress Driver

Hello,

I want to build a Laser Pointer with the PLTB450B Diode. I ordered this Driver from AliExpress:

445nm 520nm 1W 1.6W 3W Laser Diode Drive Driver Board PCB 6 14V Voltage Input-in Replacement Parts from Consumer Electronics on Aliexpress.com | Alibaba Group

I send them a massage that i need it for a 1.6w Diode.
on the one side they solderd a R470 resistors in parallel (ontop of) the the R200 resistor. And they send 3 R300 resistors. Do they need to be solder all in parallel on the other side on the free solder Pads ? When i solder in one of the R300 resistors the current is to hight (over 200ma but the Diode is rated for a current of 167ma. Does soldereing the resistors in parallel in a lower Output current ?

I hove you understand my Problem and someone is able to give me an advice.

Thanks, Jonas



Last edited by ArcticDude; 04-15-2018 at 04:53 PM.
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Old 04-15-2018, 03:30 PM #2
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Default Re: Help with AliExpress Driver

first you should introduce yourself in the welcome section and tell about your location.

as for your problem i don't get the part of 167ma,you need around 1.5-1.8A to drive this diode over 1.5w
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Old 04-15-2018, 04:02 PM #3
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Default Re: Help with AliExpress Driver

Quote:
Originally Posted by deadshadow View Post
first you should introduce yourself in the welcome section and tell about your location.

as for your problem i don't get the part of 167ma,you need around 1.5-1.8A to drive this diode over 1.5w

Exactly.

5oAwes0me--look here at what mA and voltage produce what output with a PLTB450
see: https://sites.google.com/site/dtrlpf...50b-1-6w-450nm
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Old 04-15-2018, 04:52 PM #4
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Default Re: Help with AliExpress Driver

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