EPR-85 datasheet(21/32 Pages) POWERINT

Part #	EPR-85

Description	Engineering Prototype Report for EP 85 - 2 W Charger using LinkSwitch-LP

PDF	32 Pages

Scroll/Zoom	100%

Manufacturer	POWERINT [Power Integrations, Inc.]

Direct Link	http://www.powerint.com

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21 / 32 page

04-Oct-2005

EP-85 6 V, 330 mA Low Cost Charger

10.2 Output Voltage Start-Up Profile, Battery Load

A simulated battery load was used to verify the power supply start-up profile.

Figure 14

– Battery Output Load, RLOAD = 15 Ω.

Figure 15

– Battery Start-Up Profile, 90 VAC.

Upper: IDRAIN, 0.10 A / div.

Lower: VOUT, 2 V, 50 ms / div.

Figure 16

– Battery Start-Up Profile, 265 VAC.

Upper: IDRAIN, 0.10 A / div.

Lower: VOUT, 2 V, 50 ms / div.

With a simulated battery load, the output voltage reaches regulation within 200 ms. No

output overshoot is observed. Note that the peak of the IDRAIN waveform in Figure 15 is

the leading edge current spike, not IDRAIN at the end of the switching cycle.

Page 21 of 32

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EPR-85 Datasheet(PDF) 21 Page - Power Integrations, Inc.