445 test load question

[lpstealth]

Sorry guys I'm sure the answer is here but i cant find it. What do i need fora test load for a 445nm diode on a flexdrive.

Thanks a bunch.

 

[Flaminpyro]

Well you could build one with 6 diodes and a 1 ohm 5 watt resistor there are plenty of circuits here on LPF just use
the search function or you could get one of these and be done with it for ever > http://laserpointerforums.com/f64/fp-super-3-amp-test-load-62826-4.html#post894284

 

[jimdt7]

I have heard that some multimeters act as test loads.
Is this true ?

Jim

 

[Blord]

I have heard that some multimeters act as test loads.
Is this true ?

Jim

No, a DMM is a measurement tool. Not a testload.

 

[Cyparagon]

^A multimeter can measure current - hence it can be a test load (although the load is very small). It's fine for linear drivers and some buck drivers.

6 diodes is too many. You want 3 or 4. The resistor only needs to be 1W provided you run it for short intervals, and 2W otherwise.