Dell DPS 1200MB-1A increase voltage output

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • sergiosergio
    New Member
    • Nov 2022
    • 2
    • spain

    #1

    Dell DPS 1200MB-1A increase voltage output

    Hello everyone!
    I have this power source and I turned it ON connecting the pins with an Ohm resistor. The output is about 12V and I need to overcome the voltage protection and obtain between 13.8V and 14V.
    If someone could tell me how it can be done I would really appreciate.
    Thank you in advance!
    I am attaching pictures of PSU.
    Attached Files

Related Topics

Collapse

  • electron_jj
    Panasonic TH-L42D25A checking the PSU output voltage
    by electron_jj
    Hi Everyone, I am new to this forum. I have a Panasonic LED TV which doesnt turn on and is blinking 4 times repeatedly when I turn on the switch. The TV does not respond to the remote control so I had to turn on using the physical switch on the side of the TV. When I turn on the switch the 4 x blinking starts and repeat itself until I turn off the TV. There is a black screen. I turned off the light in the room to check the panel and I think there is no backlight as far as I can tell.

    I have been inspecting and testing the capacitors and diodes in the power supply board to try to...
    08-29-2021, 08:13 AM
  • Vampy_1110
    Modifying output voltage of an Old Dell laptop charger
    by Vampy_1110
    I'm trying to turn this old dell laptop psu into a variable power supply (5-19.5) as i have already modified a few power supplies before and now i want to do the same with this but it's a bit complicated
    The pic below has an op-amp ic (Z103WA) that does the CC/CV adjustments and a double diode 3 pin ic at the far right
    As you can see there's no TL431 or Switching ic self-regulations that i can tweak easily.
    Any help would be appreciated

    ​...
    02-12-2024, 03:17 PM
  • David Miteff
    NM-D521 rev. 2.0 output voltage on CPU coils seemingly low
    by David Miteff
    Hello, guys!
    As the title says - the board is NM-D521, on the input of the CPU coils I read 1.2-1.3V, which should be normal, but on the output I read around 0.6-0.8V. The laptop bootloops with no picture.
    As of right now I don't have a thermal camera, so I can't confirm a shorted or partially shorted CPU chip. Do you have any other suggestions as of why the output voltage might drop like that?...
    12-30-2024, 07:02 AM
  • Document Archive
    MT3608 Step-Up Converter IC Datasheet
    by Document Archive
    The MT3608 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The MT3608 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height.

    Internal soft-start results in small inrush current and extends battery life.

    The MT3608 features automatic shifting to pulse frequency modulation mode at light loads. The MT3608 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The MT3608 is available...
    10-07-2024, 05:02 AM
  • Ri5ux
    Playstation 5 2 Second BLOD, F3501 Voltage Output Question
    by Ri5ux
    Hi there, just wondering if anyone out there who has a semi-working or working PS5 board could check the output voltage on F3501's buck converter for me, with and without power. I have 12V on the input, fuse not blown, no output voltage on that IC, with or without power, and no shorts present.

    Symptom: 2 Second BLOD
    Testing: All other rails seem present. APU, SSD, South Bridge, and RAM confirmed to be powering up using a thermal camera. Monitoring the current draw of the 12v rail shows a somewhat normal boot cycle of the south bridge. Jumps up to 300ma, and down to 0....
    09-09-2023, 06:57 PM
  • Loading...
  • No more items.
Working...