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link 18.12.2007 18:45 |
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Subject: works out to between works out to between - ?Hold-up times of 15 to 50 milliseconds are typical. In off-line power supplies with a 400Vdc output the hold-up requirement generally works out to between 1 and 2μF per watt of output. In our 250W example the output capacitor is 450 μF |
| требование к величине задержки дает емкость 1-2 мкФ на ватт выходной мощности |
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