Hi, i have the same problem, no more power and same coil is broken, how do you check if a mosfet is in short, and if you remember where was your broken on as my be the same on my one
Thanks
Thanks
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Re: PC specialist NL5E-N18EG motherboard
This question is best posted in the laptop repair side of the forum.how do you check if a mosfet is in short,
Remove all power -> meter in resistance mode (start with the lowest scale).
Then measure across the mosfet pins as follows:
source (1-2-3) & drain (5-6-7-8)
source (1-2-3) & gate (4)
gate (4) & drain (5-6-7-8)
If the meter shows '1' -> switch to the next higher meter scale.
Post each measure & the meter scale used for the measurement.
You are checking for a low resistance reading which often means a defective mosfet. -
Re: PC specialist NL5E-N18EG motherboard
Thank you, will do tomorrowComment
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Re: PC specialist NL5E-N18EG
All sorted, mosfet under the burned coil was burned also, replaced that and the laptop works again
Thank you for your supportComment
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Hi
I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
I wonder how i can accomplish this so the meter would be precise at any temperature ?
Thnaks -
I tried to use this method:
Testing an N-channel MOSFET:
Step 1: Discharge the Gate (turn off the MOSFET)
Place the black probe (COM) on the Source (S) and the red probe on the Drain (D). The multimeter should show no continuity (high resistance or "OL" – open line).
Then, touch the black probe to the Source (S) and the red probe to the Gate (G). This discharges any stored charge in the Gate, turning the MOSFET off.
Step 2: Charge the Gate (turn on the MOSFET)
Now, place the red probe on the Gate (G) and the black probe on the...09-27-2024, 03:31 AM -
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