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What is the purpose of the soft-start circuit in a power converter?

April 26, 2017circuit converter power purpose

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What is the purpose of the soft-start circuit in a power converter?

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The soft-start feature allows the power converter to gradually reach the initial steady state operating point, thus reducing start-up stresses and surges. In most PWM ICs an internal current source charging an external capacitor establishes the soft-start time.