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What is the value of ripple factor?
The value of ripple factor of single phase half wave rectifier is equal to 1.21. Since, ripple factor is the ratio of rms value of fluctuating ac component to the average value or dc value.
What is a good ripple?
Acceptable ripple voltage is about 100mV peak to peak. Majority of good power supplies have ripple and noise figures of better than 10mV rms, while SMPS figures of 50mV or less are possible, however, higher current supplies are likely to have slightly higher values.
Which one has lowest value of ripple factor?
In a LC filter, the ripple factor,
- Increases with the load current.
- increases with the load resistance.
- remains constant with the load current.
- has the lowest value.
What is acceptable AC ripple voltage?
A multimeter can read AC voltage and can be used to test for ripple. The alternator should be replaced if AC voltage of more than 50mV is detected (in some cars as much as 100mV is acceptable). If there is more than 0.1 volt (50-100mV, depending on the vehicle) of AC ripple, then the alternator is most likely bad.
How is ripple factor measured?
The ripple factor is, = V RMS V DC 2 − 1 = 229.8 207 2 − 1 = 0.482 = 48.2 % .
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What is ripple voltage formula?
Ripple current peak-to-peak into the −5V output capacitor is approximately equal to twice the negative load current. The wave shape is roughly rectangular, and so is the resultant output ripple voltage. A 100mA negative load and 0.1Ω ESR output capacitor will have (2)(0.1A)(0.1Ω) = 20mVP–P ripple.
What is excessive ripple?
There are electronic components inside the alternator called diodes that are responsible for keeping the ripple as small as possible. If one or more diode fails the ripple becomes excessive. This can cause charging issues or stress other electronic components in the vehicle.
Why is ripple voltage bad?
Ripple is wasted power, and has many undesirable effects in a DC circuit: it heats components, causes noise and distortion, and may cause digital circuits to operate improperly. Ripple may be reduced by an electronic filter, and eliminated by a voltage regulator.