PL450B in B50 Host Build Questions

[Photonz]

I am planning on building a single mode 450nm laser in a B50 host running at 220mA using this driver: Survival Laser Driver

Will this setup work when running off a single 3.7 V 16340 battery? :thanks:

 

[Livinloud]

MADE IN USA. The Survival Laser Fixed Current Driver is a custom "buck" type switching power supply current regulated diode driver circuit, capable of delivering from 220mA to as much as 1.8A of regulated current at a recommended input voltage of 4.2 to 8.4 volts. The switching regulator IC chip has an efficiency as high as 92%, which means that no driver heat sinking is required for most current outputs. Driver circuit board is 16.8mm in diameter and is designed to fit P/N SL-PBR1 and SL-DPBR1 Pill & Brass Ring, which in turn fits the C6, Survival Laser S4 and Survival Laser stainless steel host assemblies. Lead wires are 1-5/8" long 26 AWG silicone insulated for flexibility and durability. Available in 220mA, 445mA, 530mA, 1A, 1.5A, and 1.8A (+/- 5%) current output options. Note: Brass ring not included, must be purchased separately

Orange is your answer, you'd need a boost driver

 

[Photonz]

I could use a C6 host instead and use 2x 3.7V batteries but would that be too much for the diode? Also, could i just use a 3.7 volt on full charge (4.2)? Thanks:beer:

 

[swamidog]

220mA is quite a bit over the recommend max current of 145mA. have these diodes been tested at that current?

I am planning on building a single mode 450nm laser in a B50 host running at 220mA using this driver: Survival Laser Driver

Will this setup work when running off a single 3.7 V 16340 battery? :thanks:

 

[Livinloud]

I could use a C6 host instead and use 2x 3.7V batteries but would that be too much for the diode? Also, could i just use a 3.7 volt on full charge (4.2)? Thanks:beer:

Yeah you could do that for about 10 seconds until the battery drops in voltage. They dont hold 4.2V for long under a discharge

 

[Photonz]

220mA is quite a bit over the recommend max current of 145mA. have these diodes been tested at that current?

I was searching the forum and saw quite a few builds using 250mA to even 390mA. I'm hoping to get at least 100-150mW out of it.

Livinloud:

Yeah you could do that for about 10 seconds until the battery drops in voltage. They dont hold 4.2V for long under a discharge

So would a C6 host with 2x 16340 3.7V cells work? (can the diode handle 7.4-8.4V?

 

[Livinloud]

^^^^And what did those builds use for a driver/battery set up?

 

[Photonz]

^^^^And what did those builds use for a driver/battery set up?

I saw of them use boost drivers which looks like the best option with a 3.7 volt battery. So right now i can either use the B50 host with a boost driver OR a C6 Host with a buck driver with 2x 16340 batteries (that is if the diode can handle that voltage)

EDIT: It looks here like I can use 2x 16340 batteries with a linear driver

 

[cheech226]

the ld will take the voltage it needs from the driver. as long as the driver can handle the voltage you provide your diode will be ok. the pl450b should handle a current of 220mA just fine. dtr recommends 200mA for safety in the diode/driver combos he sells