Technical FAQs 4

Are digital circuits sensitive to power supply ripple?

While digital circuits tend to be relatively insensitive to power supply voltage, large amounts of ripple may cause errors. Analog circuits are particularly sensitive to power supply ripple. Since output voltages are produced relative to the power supply, variations in the power supply result in variations in those outputs.

What is output voltage ripple?

Output voltage ripple is a very important specification for digital and particularly for analog circuits. Ripple does not have to be periodic; in this case, it refers to any variation in the output voltage. While digital circuits tend to be relatively insensitive to power supply voltage, large amounts of ripple may cause errors.

What causes input voltage ripple?

Input ripple, typically a non-issue with higher input voltages, may fall a significant percentage below nominal—close to UVLO—at lower input voltages. In this case, input voltage ripple should be addressed since input filter oscillations can occur due to poor damping under heavy load current.

How is input ripple current calculated in hghp converters?

Therefore, input ripple current is taken as 10% of input current to achieve optimal inductor size and losses in all the HGHP converter topologies [87–91]. The critical value of inductance is calculated using Eq. (7)

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Ripple voltage of solar panels

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