AceBeam X50 driver, anyone ID parts?

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Cheule
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AceBeam X50 driver, anyone ID parts?

I just received my AceBeam X50 (wow, I like this light!) and I’m trying to figure out what I’m looking at with regards to the driver.

Anyone with an idea what’s going on with this driver? There are no ICs on the reverse side. And I noticed AceBeam sanded two of the components to remove the part numbers.

Imgur album of the driver and reverse side.

My zombie apocalypse trio: BOSS 70, Acebeam L19 green and X75.
My current edc: LAN-Apple ZircuTi

Sirstinky
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Looks like a boost driver or buck driver to me with that big inductor. The P/N’s are often removed form components to prevent piracy or their competitors from stealing their designs or divulging their suppliers. Either way, you’re driving 6 volt LEDs at high current.

kennybobby
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What is diameter of that board?

Interesting spring too.

Now i used to think that i was cool,
drivin' around on fossil fuel,
until i saw what i was doin',
was drivin' down the road to ruin. --JT

Cheule
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Thanks for posting the images in-line. Helpful to others.

kennybobby wrote:
What is diameter of that board?
I’ll measure when I get home today.

kennybobby wrote:
Interesting spring too.

I think this is a clever solution to the traditional spring bypass method.

My zombie apocalypse trio: BOSS 70, Acebeam L19 green and X75.
My current edc: LAN-Apple ZircuTi

tantien11
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i think buck controller is LM25145, micro controler is some Pic, near MCU is LDO, and other SOT23-5 is Opamp

kennybobby
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what are those light-blue or lavender colored objects?

Now i used to think that i was cool,
drivin' around on fossil fuel,
until i saw what i was doin',
was drivin' down the road to ruin. --JT

thefreeman
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kennybobby wrote:
what are those light-blue or lavender colored objects?

Looks like thermal pads on the FETs.

Cheule
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kennybobby wrote:
What is diameter of that board?

47mm diameter on the nose.

My zombie apocalypse trio: BOSS 70, Acebeam L19 green and X75.
My current edc: LAN-Apple ZircuTi