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My two new drivers buck

thanhtung

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:gun:














paypal.me/tunglaser



my video:
 
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paul1598419

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How much are you asking for these drivers? Since there is no pot, I assume it has a fixed resistor for current output. Is there a shipping cost and do you have any scope pictures of the output? Does it have thermal shutdown? There are so many questions.
 

ElectricPlasma

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Yea, some sizing would be nice too. Dimensions, maximum height, w&l etc. But a price would be useful lol.
 

94Z28

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Looks pretty basic driver, not sure how the output will look because the IC is defaced.

For the 1A
4 Caps
3 Resistors
1 Shottky
1 Inductor
IC

Hmm... good work making a driver thatung but gotta list tons of details and proof of stability before offering to sale brother.. If you start killing people's diodes they will be pretty upset. You should send some to guys who have knowledge and scopes for testing as well...
 
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thanhtung

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How much are you asking for these drivers? Since there is no pot, I assume it has a fixed resistor for current output. Is there a shipping cost and do you have any scope pictures of the output? Does it have thermal shutdown? There are so many questions.
sorry for my deficiency!

it has a fixed resistor for current output! i need more time to send some to guys who have knowledge and scopes for testing as well.
 

thanhtung

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Looks pretty basic driver, not sure how the output will look because the IC is defaced.

For the 1A
4 Caps
3 Resistors
1 Shottky
1 Inductor
IC

Hmm... good work making a driver thatung but gotta list tons of details and proof of stability before offering to sale brother.. If you start killing people's diodes they will be pretty upset. You should send some to guys who have knowledge and scopes for testing as well...
thanks for your remind! i will send some to dtr for testing as well
 

paul1598419

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Looks pretty basic driver, not sure how the output will look because the IC is defaced.

For the 1A
4 Caps
3 Resistors
1 Shottky
1 Inductor
IC

Hmm... good work making a driver thatung but gotta list tons of details and proof of stability before offering to sale brother.. If you start killing people's diodes they will be pretty upset. You should send some to guys who have knowledge and scopes for testing as well...
Seems like everyone who offers a buck driver defaces the IC, as if it couldn't be reproduced without that specific IC's part number.
 

94Z28

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Seems like everyone who offers a buck driver defaces the IC, as if it couldn't be reproduced without that specific IC's part number.
Yes I know =/ I hope to open source one soon.

Also, goodluck again thatung let me know if you wish to have me test any of your drivers. I am in the process of testing my own as well!
 

thanhtung

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i thing at 2.4A the IC will blow up just the way its all soldered !! :D
oh, dear friend, you need heatsink for IC when set at >1.8A,
- Even, i have used 2 this drivers parallel! for current 4.7A for NUBM06!
 
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thanhtung

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Yes I know =/ I hope to open source one soon.

Also, goodluck again thatung let me know if you wish to have me test any of your drivers. I am in the process of testing my own as well!
can you please give me your address?
 

Alaskan

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I understand heat sinking those IC's can allow higher current, but I'm wondering if the plastic case were shaved down so very little of it remains between the top, and the IC dye itself, whether that might increase the maximum amount of current due to better heat sinking, if less plastic between the silicon and the heat sink? Perhaps this isn't enough of a factor for higher current and other design properties limits it more?
 

thanhtung

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I understand heat sinking those IC's can allow higher current, but I'm wondering if the plastic case were shaved down so very little of it remains between the top, and the IC dye itself, whether that might increase the maximum amount of current due to better heat sinking, if less plastic between the silicon and the heat sink? Perhaps this isn't enough of a factor for higher current and other design properties limits it more?
thanks for your idea! maybe i should thinking again and more!
Thanks alls! :thanks:
 

tomfire1735

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thanh tung if you ever decided to sell these put them at around $25 each.

if you could put in the potential meter to adjust the current lot's of people will buy it.

i could communicate in Vietnamese as well. just Private message me.
 
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thanhtung

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thanh tung if you ever decided to sell these put them at around $25 each.

if you could put in the potential meter to adjust the current lot's of people will buy it.

i could communicate in Vietnamese as well. just Private message me.

I might ask you to mass produce laser host as well!!.( people usually pay $80- $180 for one host).

Shipping is $20 from Viet Nam to overseas?.
hi tomfire, my driver is 16 usd/ pc + 9usd ship overseas! 1pc to 50 pcs is only 9usd ship
 




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