Chapter 7
Power Supplies
Lab Exercises
7.01 Measuring AC Voltage Levels
7.02 Testing Power Supply Output
The power supply in a PC has two important functions: it converts the alternating current (AC) from the wall outlet to direct current (DC), and it supplies that direct current to the various components of the PC in varying voltages, stepping down the voltage as needed.
In a desktop PC, that big metal power supply box inside the case handles these functions, and it parses out power to the components via sets of connectors and multicolored wires. In a notebook PC, the power transformation function is handled by the ...
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