Announcement

Collapse
No announcement yet.

Need to trim voltage Carnetix CNX-P1900

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Need to trim voltage Carnetix CNX-P1900

    Powering a laptop with a 19.0V AC/DC supply. The supply is outputting 19.2V. The P1900 does 18.40V, 19.4V, when I set it at 18V and 19V. But at either one, the laptop won't work. Its looking for an exact voltage.

    I put a diode in series to drop the voltage to ~19.25, this works.

    I need to lose the diode and set the voltage on the P1900 to the exact voltage.

    I assume its an adjustable voltage regulator chip that I need to tweak the resistors. Any help would be appreciated.

    -Patrick
Working...
X