3 Wire Dell Laptop Charger Wire Diagram Site

When you plug the charger into the laptop, the motherboard sends a small 3.3V signal through the ID Pin to read the chip's data. Authentication: This chip tells the laptop two things: The charger is an authentic Dell product . The wattage capacity (e.g., 65W, 90W, or 130W).

In a standard Dell DC cable, the three connections correspond to specific layers of the barrel connector and specific internal wire colors. Connection Location on Plug Common Wire Color Power Output (typ. 19.5V) Inner Wall of Barrel White (sometimes Red) GND (Negative) Ground / Return Path Outer Wall of Barrel Black (thick shielding) ID / Signal PSID (Identification) Tiny Center Needle Pin Blue (sometimes Green) Sources: How the 3-Wire System Works 3 Wire Dell Laptop Charger Wire Diagram

Inside the Dell power brick, there is a small "Dallas" One-Wire EEPROM chip (often a DS2501 or When you plug the charger into the laptop,

The most common point of confusion is the purpose of that third "ID" wire. In a standard Dell DC cable, the three

If you are repairing a frayed cable or replacing a DC jack, follow these critical steps: DELL Laptop Charger 3 Pin-Out Explained ID power