Hi all
I have bought this East-092 from FT but they sent this one East-092, well i wanted to open a ticket to complain but i tested it and i was very happy it gave me 5A+ on high with a green Panasonic cell from a used laptop battery pull and a XM-L2 T4 5B1 80+CRI LED from intl-outdoor
And this is my driver pic it is just like FT photo with the wrong driver shipped i am talking about the FET there
Done thank you
Thanks gamezaway. Does it have mode memory?
Thanks. I’d also like to know about mode memory, or if it’s possible to get rid of the blinkies. Also is it PWM on the other modes and if so, how good or bad?
Is this the MOSFET:
If so, it doesn’t seem like the Rds(on) is so great (9.3 mOhms @ 4.5V), so I am having difficulty understanding what makes a good FET-based driver good?
Good traces are also important. 9 mOhms actually isn't that bad, but the datasheet doesn't tell us everything we need to know since we don't ever even see 4.5V at the gate with our drivers...that 3.5V-3.9V zone is much more important to us, and they usually don't have an official specification for that on the datasheet (although some have charts which you can extrapolate).
Do the Ohm's Law math, and work out the theoretical currents through a 1m, 4m, & 12mohm resistor. Once you get down that low there's just not much more to be gained. Halving the resistance from 30m to 15m makes a pretty big difference; halving it again from 15 to 7 makes much less difference. The lower you get the less the current increases.
Sorry MRsDNF it have next mod memory and i did the Pencil mod and it worked fine it starts on High every time ( this Pencil mod is like magic 1st time to me to try it, i didn’t believe it will work )
And Chicken Drumstick,
I dont know how to get rid of the blinkies , and also sorry about the PWM i dont know how to detect it teach me H) .
is any other place on such driver ,to solder the red (+) wire ?
If you can eliminate the next mode memory it doesn’t matter so much about the blinkies IMO, as you’d rarely see them.
PWM, the easiest way I’ve found to detect this, is when dark wiggle your index up and down quickly in front of the light, while it’s on.
If it has PWM or a low frequency you’ll easily see a disco strobe like affect as if freeze frames your finger. The higher the frequency the more freeze frames you’ll see. If it’s constant current you shouldn’t see any, just your finger moving up and down.
got the same driver and from the test today i got H 1,4amps , M 0.48Amps , L 0.1 Amps the strange it that from the strobe i get 4-5Amps
It sounds like this driver is doing something which confuses your DMM.