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Power Integrations, Inc.

Tel: +1 408 414 9200 Fax: +1 408 414 9201

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10.4.

Load Transient Response at 120VAC (50% to 100% Load Step)

In the figures shown below, signal averaging was used to better enable viewing the load

transient response. The oscilloscope was triggered using the load current step as a trigger

source. Since the output switching and line frequency occur essentially at random with

respect to the load transient, contributions to the output ripple from these sources will average

out, leaving the contribution only from the load step response.

Figure 12 – Transient Response +5V, 50%-100%-50% Load Step.

Load Current, 100mA/div.

Output Voltage

1V, 2ms / div. (+12V Offset)