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High performance ac-dc notebook PC adapter meets EPA 4 requirements
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| Author(s) |
Alberto STROPPA, Claudio SPINI, Claudio ADRAGNA |
| Abstract |
This paper presents the characteristics and the performance of a 75W-19V ac-dc adapter for notebook PC tailored on the latest Energy Star Program requirements. The power supply is composed of a front-end PFC pre-regulator and a Flyback downstream converter. An innovative PFC control circuit sensing both the input and the output voltages through an auxiliary winding is the key element in achieving the desired performance. A prototype board has been implemented and test results are reported. |
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| Filename: | 0526-epe2009-full-16110525.pdf |
| Filesize: | 213 KB |
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| Type |
Members Only |
| Date |
Last modified 2010-01-27 by System |
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