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Old 10-11-2012, 09:08 AM   #1
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Default do laptop computers have builtin power supplys like PCs do?

1.do laptop computers have builtin power supplys like PCs do?

2.or is the box on the power cord the actuele PSU?

3.I'm thinking the LTs power cord is really a AC to DC inverter suppling 12V ?

Thanks STB
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Old 10-11-2012, 10:20 AM   #2
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Default Re: do laptop computers have builtin power supplys like PCs do?

The laptop's power adapter converts the AC from the wall socket into a DC voltage (typically 12V to 19V). Within the laptop there is additional circuitry that derives whatever other voltages are required from that.

Technically speaking, it's referred to as a converter. An inverter goes the other way, inverting a DC voltage (typically 12V) into AC voltage (120V in the US).
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Old 11-11-2012, 11:21 AM   #3
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Default Re: do laptop computers have builtin power supplys like PCs do?

thanks I'm planning on using a old LT power cord to power a LED stripe light for back of TV.
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