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| Thread ID: 83957 | 2007-10-19 07:53:00 | AC Adaptors for Laptop | bk T (215) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 603049 | 2007-10-19 07:53:00 | A friend from Taiwan brought along with him a laptop computer and to my surprise, he just plug in the AC adaptor to the wall power socket outlet and everything seems to be working OK! But, I understand that Taiwan's power supply is 110V and ours is 240V. Is there such a thing as 'auto adjust' AC adaptor, which doesn't need a voltage transformer? | bk T (215) | ||
| 603050 | 2007-10-19 08:02:00 | Have a look on the back of it. Mine says input 100 to 240 volts. Output 19 volts. It auto adjusts the input to suit the power supply. |
Mercury (1316) | ||
| 603051 | 2007-10-19 17:38:00 | It's the desktop power supplies that require adjusting. | pcuser42 (130) | ||
| 603052 | 2007-10-19 18:57:00 | A friend from Taiwan brought along with him a laptop computer and to my surprise, he just plug in the AC adaptor to the wall power socket outlet and everything seems to be working OK! But, I understand that Taiwan's power supply is 110V and ours is 240V. Is there such a thing as 'auto adjust' AC adaptor, which doesn't need a voltage transformer? Most modern power adaptors are dual-voltage. My Dell power adaptor automagically switches between 110v and 240v when you plug it in. |
somebody (208) | ||
| 603053 | 2007-10-23 03:31:00 | If an adapter has a traditional transformer in it it will be heavy, and probably either "110V" or "230V". Most are switchmode, and just rectify the incoming mains. Then the output voltage is produced at a very high frequency through a light ferrite cored transformer. So the input voltage doesn't matter. Always read the rating plate. ;) |
Graham L (2) | ||
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