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EP11 Datasheet(PDF) 31 Page - Power Integrations, Inc.

Part # EP11
Description  Engineering Prototype Report - 70 W (19 V 3.66A) Universal Input Adapter (EP11)
PDF  46 Pages
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Manufacturer  POWERINT [Power Integrations, Inc.]
Direct Link  http://www.powerint.com
Logo POWERINT - Power Integrations, Inc.

EP11 Datasheet(HTML) 31 Page - Power Integrations, Inc.

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22-Jan-01
EPR-00011 - 70 W Adapter
Page 31 of 46
Power Integrations Inc
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www: http://www.powerint.com
10.8.2 Ripple Measurement Results
The results below show very good ripple results (<0.25%) even with a small input
capacitor (2.1 uF/W). This is due to the line feed forward function implemented via the L
pin, R14 and R15.
The waveforms were captured using a Yokogawa oscilloscope. Trace is VOUT_AC, the
output voltage AC coupled into the ‘scope input at 20 mV per division. Timebase is
5 ms/div.
Figure 32 - Output ripple 85 VAC 50Hz, IOUT=3.6 A
VRIPPLE (20 mV / div, 5 ms / div)



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