[Sale] Buck drivers 20, 22, 30mm, MF01, MF02(S), TN40/42, Niwalker, BLF Q8, BLF GT

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Lexel
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[Sale] Buck drivers 20, 22, 30mm, MF01, MF02(S), TN40/42, Niwalker, BLF Q8, BLF GT

Buck drivers with adjustable input and output voltages and current up to 8A
selected parts for best efficiency

The price for the driver is 21.5$ or 17,5€

20, 22mm (4Layer) and 46/47.5mm cost 1.2$ more

2$ shipping worldwide from Germany with priority air mail
optional tracking with 25€ insurance adds 3.2$

The drivers use NarsilM, but can be also later flashed with Anduril
Each driver gets calibrated for output current, LVP and step down temperature

XHP35 LED max. 2.5A same as the GT
XHP50/70 6/12V up to 8A

older driver designs:
Buck frequency changed from 600-800 to 200-350kHz
input and output caps increased, the design already has pads to fit more caps
3A diode replace with 20A
inductor from 6A 10uH to 15.5A 4.7uH
6-7A is possible

new upgraded driver

MF02S (originally MF02 XHP70.2 mod) driver is out now a few months
basically there had do be made a few improvements and parts change to get it more efficient
as well get some ringing problem on the LDO fixed that occured on higher currents

MOSFET was changed to a far better one
less voltage drop 5.5 vs. the old 12.8mOhms,
It has 1/4 of the switching losses as it switches faster
I could go up in switching frequency a lot which was reduced on the first XHP70.2 mods
total loss compared to old 1/3

Inductor value cut to half now 2.2uH with new FET and resistance as well (XHP35 has 10uH, old XHP70.2 4.7uH)
Output and Input caps sustained to handle the more current

I also made 4S carrier boards for people who dont want to mod the OEM boards

2$ for a pair of boards one tray
3$ pair cut out and sanded to size
add 3$ to with Berylliumbronze springs and gold plated button soldered

XHP35, 50 and 70(.2) will work well
for XHP50 and 70 a Star with the thermal pad not connecting the 2 LED pads over the thermal pad is mandatory
so for 12V reroute over a separate trace would be needed, usually a wire can do it on a modded 6V MCPCB

20mm and 22mm
4 layer for better thermal properties

new more efficient MOSFET and minor changes

23mm for Klarus XT11/12GT running 2 18350s for Oslon BF or other 3V LED

30mm for L6 or similar lights

new with L6 compatible Ground ring and new MOSFET

TN42

new TN40 XHP35 8A 12V

Niwalker BK-FA30S

added 3 pads for the auxillary switches,
one providing 5V for the Turbo switch
one sets multiples the current by 10 or goes to Turbo
the other divides the current by 10

HaikeLite MT07S MT09S

new

MF01 3S LED mod to 4S carrier

MF02 XHP35 12V 2.5A

MF02 for XHP70

MF02S XHP70.2 12V added some more thermal conduction as well as programming port (not produced yet)

The battery carrier needs to be modified to 4S its pretty easy
2 trace cut on both ends and add one bridge

BLF Q8 XHP35

BLF GT Oslon Black flat

new

Edited by: Lexel on 08/12/2018 - 13:31
Lexel
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the driver Sale is in my TA driver Excel spreadsheet which contains also DD+7135 drivers and other stuff

Efficiency measure on my 12V MF02S driver

Let me give it a try as I modded today for someone else a MF02S

I am bad at making videos but I post it anyways


actually the PSU voltage meter uses calvin clamps so its reding on contact points on driver to compensate losses on the wires, even if they are 2.5mm²

Turbo (measure 3 times and used average later on video the clamp meter offset were off 70mA)
Input: 15,15V 5.4-5,44A
Output: 13,44-13,51V 5,70-5,74A
Efficiency: 94,4%

I also changed the calibration resistor to get to 6.09A later and did again 2 measurements
15,11V 5,8A
13,6V 6,09A
94,5%

fully charged VTC6 should give this voltage
16,17 5,37A
13,55V 6,04A
94,25%

2A
Input: 15,73V 1,766A
Output: 12,06V 2,12A
Efficiency: 95,5%

500mA switching frequency is over 1 Mhz as outout voltage low and input high
Input: 15,94V 415mA
Output: 11,2V 502mA
Efficiency: 85%

look also in my other driver topic for more Information
http://budgetlightforum.com/node/59724

Niwalker Connections are special for the Aux buttons

the left row is for the aux buttons

V is 5V for Turbo and 10X for the switch
10X increases current by 10 max is Turbo
T turbo even whan electronix lock out or light off

M reduced the current by factor of 10
needs to be connectd to (G) ground pad on 2. wire

right
G common Ground
L Switch LED MCU controlled
S Switch for UI ramping setings ect

Athlon2350
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interested

prisma
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Interested

lcortez321
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Interested. But I have no technical expertise in modding anything, not even a cucumber, much less a flashlight, will you offer your services, to those who need help?

Lexel
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lcortez321 wrote:
Interested. But I have no technical expertise in modding anything, not even a cucumber, much less a flashlight, will you offer your services, to those who need help?

I bet there is someone near you who can help with the driver change and battery carrier mod
I am from Germany so shipping costs would kill it

MRsDNF
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I’d be interested in a couple. Are you planning different options with it in respect to current and output voltages?

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Lexel
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MRsDNF wrote:
I’d be interested in a couple. Are you planning different options with it in respect to current and output voltages?

I will build those with 4 shunt pads

The standard BLF Buck from del has a 0.091 shunt
I will be using 3 0.33 and one 1 Ohm resistor —>0.091 Ohms
Of course it is possible to go to different values for different output currents

The inductor is rated 6A, so that’s a current that should be without any problems availiable

Zeratull
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Hi! Sorry I am not expert in MOD but I would like to know what do you expect with this Driver in the Astrolux MF02? I am going to buy a MF02.
Thanks.

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Zeratull wrote:
Hi! Sorry I am not expert in MOD but I would like to know what do you expect with this Driver in the Astrolux MF02? I am going to buy a MF02. Thanks.

This driver has the awesome Firmware Narsil

Battery carrier needs 2 traces cut and one bridge soldered to go to 4S/1P
Driver will be same size as MF02, so basically solder wires from one driver to the other

MRsDNF
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Lexel wrote:
MRsDNF wrote:
I’d be interested in a couple. Are you planning different options with it in respect to current and output voltages?

I will build those with 4 shunt pads

The standard BLF Buck from del has a 0.091 shunt
I will be using 3 0.33 and one 1 Ohm resistor —>0.091 Ohms
Of course it is possible to go to different values for different output currents

The inductor is rated 6A, so that’s a current that should be without any problems availiable


Thanks. Do you need to change anything to go from 12 volt to 6 volt output?

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

ramptosd
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Hi Lexel. I have not done my first mod yet but I am interested and this does not seem like it would be too complicated. Would you let me know what you think this might do for the MF02, how it might affect performance of the light? Thank you

Rat
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I’m in. Put me down.

Lexel
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ramptosd wrote:
Hi Lexel. I have not done my first mod yet but I am interested and this does not seem like it would be too complicated. Would you let me know what you think this might do for the MF02, how it might affect performance of the light? Thank you

Not too complicated the Battery carrier and driver replacement
The LED will be driven as hard as in the BLF GT and you got a great Firmware with NarsilM, highly customable

MRsDNF wrote:
Lexel wrote:
MRsDNF wrote:
I’d be interested in a couple. Are you planning different options with it in respect to current and output voltages?

I will build those with 4 shunt pads

The standard BLF Buck from del has a 0.091 shunt
I will be using 3 0.33 and one 1 Ohm resistor —>0.091 Ohms
Of course it is possible to go to different values for different output currents

The inductor is rated 6A, so that’s a current that should be without any problems availiable


Thanks. Do you need to change anything to go from 12 volt to 6 volt output?

you have to ask DEL if that’s possible its his driver circuit

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If there will be so options I’ll be in for a few, I’d like to have one for my sbt-70 led if possible ?

Lexel
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Lights-Out wrote:
If there will be so options I’ll be in for a few, I’d like to have one for my sbt-70 led if possible ?

This driver is for 12V LEDs, SBT-70 is a 3V one and wont work with the current it needs

XHP35, 50 and 70 will work well
for XHP50 and 70 a Star with the thermal pad not connecting the 2 LED pads over the thermal pad is mandatory
so for 12V reroute over a separate trace would be needed

Those Sinkpads are OK, MTN, Fasttech and LEDDNA sells em

This LED star will not work if the star is not insulated from the body

steel_1024
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Interested +1

Sorry for my poor english.

firedome
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Interested Big Smile

“We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.

-Plato

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Interested.

g_sintornillos
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Interested

Sorry for my bad English (gogole transtorla)

Lexel
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I think I can live with this

the question is if a 8.5mm high inductor fits the head or if I have to take a smaller one

P.S.
Design got improved
MF02 measured 8.3mm for parts height so the 7.5mm inductor will fit

GozonM
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Interested

giorgoskok
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Will you add this board on your boards page after you test it ? And parts list if possible!

Lexel
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I will order those boards not from Oshpark so witch 30 boards on the batch I should get down to about 2$ per PCB

When I sold the batch I will make em public including mouser parts list

giorgoskok
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Hmm , if you order 30 and are cheap as you mention , maybe i can get 2 pcbs from you ?

Lexel
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Parts ordered for 30 drivers

final design

mikey1299
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Interested

Lexel
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OP changed to sale topic

Price is 22$ plus shipping

PM sent to all that replied in this topic

parts and boards for 30 drivers ordered
(10% extra parts for tests and maybe 3 boards from Oshpark)

I also added the 2×2 LED boards to the Seed order,
so if you like different colors or just more even lighted switch you can take one as well
I got SMD LEDs in different colors
CW, NW, green, emerald green, yellow, orange, red, blue, ice blue and pink

steel_1024
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take one

Sorry for my poor english.

Lexel
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lol just realized my calculation was missing the MCUs
price 1$ increased

MRsDNF
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Hi Lexel. I guess you received my payment for two drivers, just cant see my name on your spread sheet. I slipped you a couple of dollars extra so all should be good here. Beer

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

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