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Reliability is one of the key features that is sought after in converter design. Electrolytic capacitors are the most common capacitor type in switching mode power supplies to be used as a DC bus energy storage. However, electrolytic capacitors are known to degrade due to aging. This paper introduces a capacitance degradation detection method for a step-down DC-DC converter that is based on introducing...
One of the most significant reliability issues in switching-mode power supplies is electrolytic capacitor degradation caused by aging. This paper proposes an output voltage transient analysis method to detect capacitor wear-out at the output stage of a step-down dc–dc converter. Changes in the converter output voltage dynamics are evaluated by analyzing the output voltage step response with respect...
One of the largest reliability issues in switching mode power supplies is capacitor aging based degradation. This paper proposes a step excitation based online capacitor wear-out detection method for output stage capacitor of a step down DC-DC converter. Changes in the converter output voltage dynamics are detected during operation by analyzing output voltage step response. Sensitivity of the presented...
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