« previous next »
Pages: [1]   Go Down

usb remote batteries wrong way. what would happen?

  • 1 Replies
  • 2370 Views
*

Offline ssjchar

  • *
  • 11
usb remote batteries wrong way. what would happen?
« on: 17 / May / 2008, 19:14:01 »
Advertisements
I bought a flashlight that uses 3 1.2v batteries to use for for a usb remote on my s3is.  i'm not sure which way i should put the batteries.  the batteries just drop into the housing.  what would happen if i put the batteries in the wrong way?  would it break my camera or anything like that?
Logged
*

Offline BB

  • ***
  • 164
Re: usb remote batteries wrong way. what would happen?
« Reply #1 on: 17 / May / 2008, 20:46:29 »
None of the schematics I saw had it--but you should put a ~100-300 Ohm resistor in series with the battery/regulator output to the data line... Even if it is shorted, the battery is to high of voltage (within reason), or any other major mess-up--the series resistor should limit the power low enough that the USB circuitry will not be damaged.

-Bill
Logged
Pages: [1]   Go Up
« previous next »
 

Related Topics