| First, the nominal voltage of power adapter Dell | | | | time connected chain, after going through the |
| inspiron 1300 Adapter Dell PA-6 adapter Dell PA-9 | | | | filter capacitor will become flat after some, but |
| adapter normally refers to the open circuit | | | | the ripple coefficient remains high (ripple |
| output voltage, that is, do not take any load, | | | | coefficient is the same magnitude of voltage |
| there is no current output voltage value. | | | | signal fluctuation the average voltage ratio, the |
| Therefore, that this is the power supply output | | | | smaller the closer description voltage direct |
| voltage limit. For the internal use of the initiative | | | | current), the so-called nominal voltage refers to |
| power supply unit or voltage regulator | | | | the time integral of this voltage divided by the |
| components of the benchmark, in general the use | | | | integration time, simple to understand is the right |
| of high resistance DC voltmeter can be directly | | | | time, on average, if an ordinary DC Voltage Meter |
| measured nominal voltage (electromotive force | | | | , measured value is very close to the maximum |
| should be a more accurate method of bridge | | | | value of the voltage signal, so uncertainty. At the |
| belongs to the University of General Physics | | | | same time, if the electricity fluctuate, the output |
| course experiment, not repeat them here), even | | | | of such power will change as well. |
| if the mains voltage fluctuations in a certain place, | | | | In general, the real average no-load voltage of the |
| is secure in its output a constant value; but for a | | | | power adapter is not necessarily exactly the |
| small market, low-cost transformers, such as the | | | | same nominal voltage, because the characteristics |
| Walkman and the like to the type used is basically | | | | of electronic components can not be exactly the |
| the traditional magnetic core transformer with | | | | same, so it allowed a certain margin of error, civil |
| four rectifier diode bridge rectifier coupled with a | | | | cases according to the need to control the use of |
| large filter capacitor on the bin, and so if you use | | | | 0.1% to about 5%. The smaller errors, the |
| common dc voltage meter measured value will be | | | | consistency of demand for electronic |
| greater than the nominal voltage, because the | | | | components, the higher the cost of industrial |
| output of bridge rectifier pulsating DC, simply said | | | | production, the higher the price of course, the |
| to be a sinusoidal voltage signal is a half weeks of | | | | more expensive. |