ripple voltage การใช้
- The output ripple voltage will decrease in line with the usually reduced load current.
- This behaviour leads to another advantage over the Dickson multiplier : reduced ripple voltage at double the frequency.
- The allowable peak value of a superimposed alternating voltage, called the " rated ripple voltage ", is frequency-dependent.
- For the rms value of the ripple voltage, the calculation is more involved as the shape of the ripple waveform has a bearing on the result.
- A more usual alternative to a filter, and essential if the DC load requires very low ripple voltage, is to follow the reservoir capacitor with an active voltage regulator circuit.
- Disadvantages include greater complexity, the generation of high-amplitude, high-frequency energy that the low-pass filter must block to avoid electromagnetic interference ( EMI ), a ripple voltage at the switching frequency and the harmonic frequencies thereof.