kosPap
Flashlight Enthusiast
Hi all! I am trying to modify the output to the DX15880 Buck-Boost driver
1. How to modify an SMD resistor
I need to lower the value of some resistors.
I know paralleling them is easy and I have done it but it is impossible to find SMDs lower than 1ohm in Greece.
I have heard, and tried to no success, two methods
a. scratching off material from the Resistor
b. painting over it with a HB hardness pencil
If you have tried it can you help my with any proper application leads?
2. Modifying the output of the DX15880 driver
It is supposed to be buck/boost but there have never been specs on what kind of buck it is (4.2 or 6+V?)
Anyway here is a better pic by Tohuwabohu taken by this post
At the bottom one can see 2 SMD resistors, a 0.047 and a 0.250 Ohm one.
They seem connected in parallel to me.
But the R250 one does not seem to be connected to the ring, thus can it actually be deactivated?
TNX, kostas
1. How to modify an SMD resistor
I need to lower the value of some resistors.
I know paralleling them is easy and I have done it but it is impossible to find SMDs lower than 1ohm in Greece.
I have heard, and tried to no success, two methods
a. scratching off material from the Resistor
b. painting over it with a HB hardness pencil
If you have tried it can you help my with any proper application leads?
2. Modifying the output of the DX15880 driver
It is supposed to be buck/boost but there have never been specs on what kind of buck it is (4.2 or 6+V?)
Anyway here is a better pic by Tohuwabohu taken by this post
At the bottom one can see 2 SMD resistors, a 0.047 and a 0.250 Ohm one.
They seem connected in parallel to me.
But the R250 one does not seem to be connected to the ring, thus can it actually be deactivated?
TNX, kostas
