Design Tips

Current
When Pulses Are Omitted in Switch-Mode Power Supplies

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Figure 1. The concept of Burst Mode in a switch-mode power supply.

­Even switch-mode power supplies with a fixed switching frequency do notalways show a continuing pattern of pulses. In some conditions, pulses areomitted for various reasons. This is important to consider for output ripplevoltageand EMI effects. A switching regulator for voltage conversion normally operates
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Date:
08/01/2025
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