Review: NANJG 105A 2800mA driver

193 posts / 0 new
Last post
CheapThrills
CheapThrills's picture
Offline
Last seen: 12 hours 55 min ago
Joined: 07/02/2011 - 10:45
Posts: 3146

Where are these available nowadays?

Hikelite
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

CheapThrills wrote:

Where are these available nowadays?

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

CheapThrills
CheapThrills's picture
Offline
Last seen: 12 hours 55 min ago
Joined: 07/02/2011 - 10:45
Posts: 3146

Hikelite wrote:

CheapThrills wrote:

Where are these available nowadays?

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

 

Thanks!

benckie
benckie's picture
Offline
Last seen: 2 years 10 months ago
Joined: 07/04/2011 - 08:36
Posts: 1499

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

CheapThrills
CheapThrills's picture
Offline
Last seen: 12 hours 55 min ago
Joined: 07/02/2011 - 10:45
Posts: 3146

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

Hikelite
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

CheapThrills wrote:

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

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
CheapThrills's picture
Offline
Last seen: 12 hours 55 min ago
Joined: 07/02/2011 - 10:45
Posts: 3146

Hikelite wrote:

CheapThrills wrote:

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

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
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

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
Offline
Last seen: 1 year 11 months ago
Joined: 02/07/2012 - 12:17
Posts: 394
Have Nanjg 105C same mode groups like Nanjg 105A?
CheapThrills
CheapThrills's picture
Offline
Last seen: 12 hours 55 min ago
Joined: 07/02/2011 - 10:45
Posts: 3146
agedbriar
Offline
Last seen: 1 year 3 months ago
Joined: 04/09/2011 - 18:11
Posts: 628

Mine is the 105C version and pulls 0.28A on two-mode Low.

fibra
fibra's picture
Offline
Last seen: 3 years 10 months ago
Joined: 03/20/2012 - 05:01
Posts: 11

Is the PCB same for both 12F629 and ATtiny13?

Hikelite
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

fibra wrote:

Is the PCB same for both 12F629 and ATtiny13?

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

fibra
fibra's picture
Offline
Last seen: 3 years 10 months ago
Joined: 03/20/2012 - 05:01
Posts: 11

sixty545 wrote:
This one runs with a MCU PIC12F629 instead of the NANJG 105's ATtiny13.
Hikelite
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

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
Offline
Last seen: 1 year 11 months ago
Joined: 02/07/2012 - 12:17
Posts: 394
sixty545
Offline
Last seen: 4 hours 40 min ago
Joined: 10/25/2010 - 14:15
Posts: 562

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
Offline
Last seen: 1 hour 36 min ago
Joined: 06/29/2011 - 21:20
Posts: 213

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

boboweb
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

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 !

 

DrJones
DrJones's picture
Offline
Last seen: 5 hours 3 min ago
Joined: 01/05/2011 - 13:30
Posts: 1009

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
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

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 ?

 

Pulsar13
Pulsar13's picture
Online
Last seen: 8 min 40 sec ago
Joined: 02/05/2012 - 10:23
Posts: 1860

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
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

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
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

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
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

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
Offline
Last seen: 1 month 1 day ago
Joined: 07/13/2011 - 16:18
Posts: 3434

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
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

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
SashiX's picture
Offline
Last seen: 1 year 10 months ago
Joined: 10/07/2010 - 15:46
Posts: 1990

Regulation test someone? Will be very grateful Smile

viffer750
Offline
Last seen: 3 weeks 5 days ago
Joined: 08/15/2011 - 10:29
Posts: 508

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
Offline
Last seen: 4 hours 40 min ago
Joined: 10/25/2010 - 14:15
Posts: 562

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).

SashiX
SashiX's picture
Offline
Last seen: 1 year 10 months ago
Joined: 10/07/2010 - 15:46
Posts: 1990

viffer750 wrote:

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

So, no regulation? I've tried to measure ohm of my Trustfire with my UNI-T and got 0.

boboweb
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

Thank you for the advise my friend ! Will test and report here !

NightCrawl
Offline
Last seen: 4 months 1 week ago
Joined: 01/22/2012 - 08:20
Posts: 3044

SashiX wrote:

viffer750 wrote:

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

So, no regulation? I've tried to measure ohm of my Trustfire with my UNI-T and got 0.

It is regulated, but buck only. You cant measure the internal resistance of a battery with a multimeter just like that, you may have killed the fuse..

boboweb
Offline
Last seen: 3 years 8 months ago
Joined: 01/28/2011 - 10:56
Posts: 11

sixty545 wrote:

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).

 

I did check and all connections look fine !

Silicon
Offline
Last seen: 11 months 2 weeks ago
Joined: 06/19/2012 - 17:25
Posts: 64
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 ?

 

Same as you
I get half of the power, and tried on 2 of these drivers.
I checked out the AMC7135 one by one and they all work.

At the end I still get 1.4A on high..

I tried to replace the wires with thicker wires, but no change

Rufusbduck
Rufusbduck's picture
Online
Last seen: 9 min 29 sec ago
Joined: 04/04/2012 - 15:34
Posts: 7602

The input and output to/from the chips on each side are connected by the tiny holes(vias) in the board. If through a manufacturing error, those holes did not get plated, you will only see the output from one side. Measuring the resistance between corresponding legs on opposite sides will verify this. It should be zero for both Vdd and led-. If that is the problem, jumpers to make the two connections will fix it or you could send them back for replacement.
Edit- there appear to be 3 vias in question. Ignore those connected to the stars. In the first image at ~ 10 o’clock are 2 vias in line with the red arrow. The one toward the center of the board is Vdd and the mcu uses this trace to turn the chips on and off(pwm signal). The one toward the edge is the output where the current from the led is dispersed to the chips and through them to gnd. At ~ 1 o’clock is another via that connects other chips to the output trace. If you look carefully at the images you can see how the vias are used to complete the parallel connections of the chips. Some of the traces pass under the chips to do this.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

Silicon
Offline
Last seen: 11 months 2 weeks ago
Joined: 06/19/2012 - 17:25
Posts: 64

I tried with another driver, I am stuck at 1.6A

Also how big are your wires connecting the led to the driver ?

I have wires made of 5 thin wires, and 7 thin wires. I currently only use the one made with 5 as it is more flexible and easy to solder on the board. But I am wondering if this is big enough

I am really wondering how you guys succeed in getting 2.8 or 3A, because I have now 3 drivers that should give 2.8A each, and I can’t barely get 2A…

ChiggerPepi
ChiggerPepi's picture
Offline
Last seen: 57 min 3 sec ago
Joined: 08/20/2012 - 19:32
Posts: 592

All of the 105c’s I have tested in my lights do put out 2.8 amps on high.

My first thought is: What kind of battery are you using? Is it capable of 2.8 amps? Some are not.

scaru
scaru's picture
Offline
Last seen: 1 year 2 months ago
Joined: 03/22/2012 - 13:36
Posts: 6902

It could also be your DMM...

CustomX
Offline
Last seen: 1 year 1 month ago
Joined: 12/19/2014 - 12:06
Posts: 2

Just wired one up worked for a few seconds now its stuck on High? Any ideas?

Serifus
Offline
Last seen: 5 days 4 hours ago
Joined: 06/22/2012 - 03:10
Posts: 350

Check the negative on the led, its probably shorted to the ground

CustomX
Offline
Last seen: 1 year 1 month ago
Joined: 12/19/2014 - 12:06
Posts: 2
Serifus wrote:
Check the negative on the led, its probably shorted to the ground

Thanks il give it ago!

Pages