Dell Laptop Power Supplies: How do they Operate?
Helpful info for troubleshooting
Electronic gadgets such as laptops to some can be quite complicated. They have so many wires and compartments that it’s easy to become overwhelmed and confused on the function of each an/or how to replace any parts of they go bad. One of the most vital parts of a laptop is its power supply. Sure some may argue it’s the processor, but without power, nothing works right? Although just looking at it is quite intimidating, understanding it is really helpful in fixing any problems that might occur. So how do these simple looking things, more specifically Dell laptop power supplies work? The main source of power comes into the plug that is found on the back of the computer. It is then distributed into the metal traces that are found inside the mainboard before they are transmitted to the voltage regulators. There are several types of outputs for these regulators such as 5 volts or 12 volts.
Inside the mainboard, there are battery-like parts sometimes referred to as capacitors. They supply extra power to keep the voltage stable during high demand. This is how the power is evenly distributed to the devices that need it within the laptop. However, there are some parts of the computer or laptop that require a different power source. For one, the LCD display uses a different part of (in this case) the Dell laptop power supply. This is because the backlights of the LCD need a higher amount of voltage to function. This is the reason why a power inverter is utilized to increase the amount of voltage. Inverters come in different forms, they can be a removable part or a tiny chip located in the mainboard.
The battery is one of the most essential accessories of a laptop. It is responsible for supplying power to the input-part of the voltage regulators. It also consists of a charging circuit that is used to recharge the battery. The circuit needs the help of an AC adapter to be able to charge this accessory. Thus the AC adapter has a higher voltage rate than the battery. This is because a higher level of voltage is needed during charging.
