DAK-34 Power Integrations, DAK-34 Datasheet - Page 20

• Manufacturer Part Number: DAK-34
• Description: KIT DESIGN ACCELERATOR AC/DC PS
• Manufacturer: Power Integrations
• Series: TOPSwitch®-GXr

Specifications of DAK-34

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 30W
• Voltage - Output: 12V
• Current - Output: 2.5A
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 132kHz
• Board Type: Bare (Unpopulated) and Fully Populated
• Utilized Ic / Part: TOP245
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 596-1004

11.4
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 18 – EP-34 Transient Response, 115 VAC,
Load Transient Response (75% to 100% Load Step)
75%-100%-75% Load Step.
Top: Load Current, 1 A/div.
Bottom: Output Voltage.
50 mV, 500 µ s/div.
Power Integrations
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Figure 19 – EP-34 Transient Response, 230 VAC,
75%-100%-75% Load Step
Upper: Load Current, 1 A/div.
Bottom: Output Voltage.
50 mV, 2 ms/div.
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