BlackBuck 8M - 8 Amps compact driver for portable devices
*Note if you want to order one of these, contact me within the next week as I am placing my order and you may can get a couple dollars off by ordering with me. (I'll order them up front, and sell you one at the initial price; Otherwise, they'll be in the BST section shortly)
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This is the setup i'll be using >
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So I got a BlackBuck 8M in from X-Wossee finally and decided to give it a quick try on a M140 i had on the workbench still inside a lab style host.
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I didn't solder everything together because this driver isn't done being tested, I'm going to test it on the higher current diodes as well. Anyway, the clips got connected and everything readied. I turned the external pot all the way down, and plugged my test load onto the end of it; He pre-set it at 1.8A before shipping it to me. I am going to run through all the numbers again later tonight at work but it looks to be 93-94% efficient when looking at input to driver, and output to LD.
Hooked up the power, began slowly turning pot up... It slowly rised eventually the pot bottomed out at a perfect 1.79A. It was time to hook to the LD! So I did hook it up, and in the process i placed a thermocouple on the IC of the driver to monitor temperature change.
Begin/Ambient Temperature was 88*F after running for 5 minutes 96* and 15 minutes was 99*F. It has very little heat rise at 1.8A i was really happy with that. I don't know how well it will do at 4.5A yet but soon I will find out; I would guess a heat sink will begin to be required up around that area.
This driver will be awesome for some guys who want an adjustable output! I know it would be great in some of those maglite hosts and the "external pot" could easily get mounted in the head somewhere!
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Now, who has some build ideas!
*Note if you want to order one of these, contact me within the next week as I am placing my order and you may can get a couple dollars off by ordering with me. (I'll order them up front, and sell you one at the initial price; Otherwise, they'll be in the BST section shortly)
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The brand new high-performance, compact buck LED/laser diode driver with thermal protection (external NTC sensor) . Can be controlled/modulated by an external sources like DAC, PWM or analog modulated signal. It has 5V reference voltage output for connecting an external potentiometer as a modulation source. High-quality onboard multi-turn trimmer helps to the fine-tuning of the output current. The driver can operate with the current up to 3A without an external heat sink, but it requires a heat sink for currents above 3A. It works fine with 2 or 3 cells Li-Ion or Li-Po batteries or 7-12V DC PSU. |
Quote:
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Specs: Output (drive) current 1000... 8000 mA +/- 5% Modulation input 0...5V or 5V TTL/PWM Conversion efficiency >93% Modulation rise/fall time 40/60ms Start-up delay 30ms Sine-wave modulation bandwidth 4 KHz Overheat protection shutdown t° 50° C / 122° F +/- 5% PCB dimension 16*17*6 mm |
So I got a BlackBuck 8M in from X-Wossee finally and decided to give it a quick try on a M140 i had on the workbench still inside a lab style host.
I didn't solder everything together because this driver isn't done being tested, I'm going to test it on the higher current diodes as well. Anyway, the clips got connected and everything readied. I turned the external pot all the way down, and plugged my test load onto the end of it; He pre-set it at 1.8A before shipping it to me. I am going to run through all the numbers again later tonight at work but it looks to be 93-94% efficient when looking at input to driver, and output to LD.
Hooked up the power, began slowly turning pot up... It slowly rised eventually the pot bottomed out at a perfect 1.79A. It was time to hook to the LD! So I did hook it up, and in the process i placed a thermocouple on the IC of the driver to monitor temperature change.
Begin/Ambient Temperature was 88*F after running for 5 minutes 96* and 15 minutes was 99*F. It has very little heat rise at 1.8A i was really happy with that. I don't know how well it will do at 4.5A yet but soon I will find out; I would guess a heat sink will begin to be required up around that area.
This driver will be awesome for some guys who want an adjustable output! I know it would be great in some of those maglite hosts and the "external pot" could easily get mounted in the head somewhere!
Now, who has some build ideas!
