Review: NANJG 105A 2800mA driver

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CheapThrills
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Where are these available nowadays?

Hikelite
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CheapThrills wrote:

Where are these available nowadays?

http://www.intl-outdoor.com/torch-components-drivers-and-regulators-c-57...

CheapThrills
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Hikelite wrote:

CheapThrills wrote:

Where are these available nowadays?

http://www.intl-outdoor.com/torch-components-drivers-and-regulators-c-57...

 

Thanks!

benckie
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Hikelite wrote:

benckie wrote:

Hikelite wrote:

first- 2 modes (100%-20%)

second - 3 modes (100%-35%-4%)

The percentages are according to the OP.

 

However I've seen several taobao sellers saying,

100%-10%

100%-30%-5%

They could be referring to the older 105A. Pretty close specs anyway.

 

Thank you, two modes sounds even better to me

Glad to help. Same here, two modes appreciated, especially with that percentage difference.

I screwed up some where I ended up with a 2 amp one mode lol I'm very happy with it still as its bright no strobe or s.o.s and I know it was my mistake

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The two mode, "100% - 20%", is it normal it to draw 2.8A on High AND 0.27A on LOW ? Flat Stare

Hikelite
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CheapThrills wrote:

The two mode, "100% - 20%", is it normal it to draw 2.8A on High AND 0.27A on LOW ? Flat Stare

Yep it's OK. Some Taobao sellers actually say 100-10%, not 100%-20%. 10% of 2.8A is 0.28A  Probably depends on batches or one description is older than the other.

CheapThrills
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Hikelite wrote:

CheapThrills wrote:

The two mode, "100% - 20%", is it normal it to draw 2.8A on High AND 0.27A on LOW ? Flat Stare

Yep it's OK. Some Taobao sellers actually say 100-10%, not 100%-20%. 10% of 2.8A is 0.28A  Probably depends on batches or one description is older than the other.

 

Ok, actually I think it is a good amperage for my uses, 20% could be just a bit too high...

But there are drivers, that also have 20% low?

Hikelite
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The only 10% low is on the two modes, the other lows are 5% on the 105C.

I wonder if there are 105C that have 20% on low. The tested Nanjg in this review is 105A.

The Nanjg 105C has two resistor on the left of the MCU compared to the 105A. 

nekdo12
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Have Nanjg 105C same mode groups like Nanjg 105A?
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agedbriar
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Mine is the 105C version and pulls 0.28A on two-mode Low.

fibra
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Is the PCB same for both 12F629 and ATtiny13?

Hikelite
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fibra wrote:

Is the PCB same for both 12F629 and ATtiny13?

I have not seen a PIC 12F629 on the Nanjg 105 so far.

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sixty545 wrote:
This one runs with a MCU PIC12F629 instead of the NANJG 105's ATtiny13.
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fibra wrote:

sixty545 wrote:
This one runs with a MCU PIC12F629 instead of the NANJG 105's ATtiny13.

Yes, sorry the 105A is like that. I am used to seeing the 105C. Actually the 105A is discontinued for quite some time.

nekdo12
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sixty545
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nekdo12 wrote:

DX have these driver. Finaly

Thanks for mentioning. Looking closely at the enlarged pictures I can see the letters "NY" on the MCU so I am confident that they are TINY13A.

Have ordered 3 pc.

Microa
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According to the photo, the pin 4 of the MCU was connected to the ground which match the specification of Attiny13.

boboweb
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Hello guys ,

I wonder can I connect this driver to the LED  missing one of the  7135 devices ? I want to reduce the power to about 2450mAh . Is this possible without physically removing of the 7135 device but just by soldering of the LED ignoring one 7135 ? And if this is possible - where on PCB should I solder the  cables to the LED ?

 

Thank you very much in advance !

 

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No, it's not, they are all connected in parallel.

However, you can cut a track leading one of them to disable a chip. 

boboweb
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OK DrJones thank you ! Can you show me please which track should to cut and where on PCB should I solder the cables to the LED ?

 

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If I were you I would just cut the legs off the 7135. Easier and less risk compared to accidental cutting wrong trace or overheat the board desoldering.

boboweb
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Today I received my driver. It`s 105C from DX ! I don`t know why but it works on half power ... High 1,4A , Mid 0,4A , Low 0,08A

 

I did solder all like on this photo. Any ideas why i can get the full power ?

 

Hikelite
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Why did you solder the pins of the MCU like that and  why haven't you used the stars to get your desired group of modes?

boboweb
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Hikelite wrote:

Why did you solder the pins of the MCU like that and  why haven't you used the stars to get your desired group of modes?

 

I didn`t touch the MCU ! I forgot to say ...

Hikelite
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boboweb wrote:

Hikelite wrote:

Why did you solder the pins of the MCU like that and  why haven't you used the stars to get your desired group of modes?

 

I didn`t touch thr MCU ! I forgot to say ...

I see. You measured  half on everything, Hi, Mid, Lo.

Maybe you can post some photos of that particular driver.

boboweb
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Hikelite wrote:

boboweb wrote:

Hikelite wrote:

Why did you solder the pins of the MCU like that and  why haven't you used the stars to get your desired group of modes?

 

I didn`t touch thr MCU ! I forgot to say ...

I see. You measured  half on everything, Hi, Mid, Lo.

Maybe you can post some photos of that particular driver.

 

Yes ! Exactly the half on everything, Hi, Mid, Lo ! Don`t have photos of my driver yet but it looks exactly the same like this on the photo ...

I think that the 7135 devices from one on the sides of the PCB doesn`t work at all ....

SashiX
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Regulation test someone? Will be very grateful Smile

viffer750
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SashiX wrote:

Regulation test someone? Will be very grateful Smile

earlier I made one, but with a 3040mA version

http://budgetlightforum.com/node/7789#node-7789

unique engrish language... Smile

 

sixty545
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boboweb wrote:

Today I received my driver. It`s 105C from DX ! I don`t know why but it works on half power ... High 1,4A , Mid 0,4A , Low 0,08A

I did solder all like on this photo. Any ideas why i can get the full power ?

 

It is most likely a bad connection between the two sides of the print. All 7135 should be connected in parallel. Try with an ohmmeter or a continuity tester between corresponding legs of one 7135 on the upper side and one on the lower side and repair the missing connection (if any).

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