EPR-84 datasheet(17/28 Pages) POWERINT

Part #	EPR-84

Description	Engineering Prototype Report for EP-84 - <30 mW No-Load Consumption AC-DC Power Supply Using TNY264P

PDF	28 Pages

Scroll/Zoom	100%

Manufacturer	POWERINT [Power Integrations, Inc.]

Direct Link	http://www.powerint.com

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17 / 28 page

23-May-05

EPR-84 – Single Output, Universal Input, Cell Phone Charger

Page 17 of 28

Power Integrations

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

www.powerint.com

Performance Data

All measurements were performed at room temperature, at 60 Hz input frequency, unless

otherwise specified.

An electronic load was used to measure efficiency.

All output

voltages were measured at the end of the power supply output cable. The resistance of

the output cable was approximately 0.2

Ω.

9.1

Efficiency

40.00%

50.00%

60.00%

70.00%

80.00%

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

0.55

0.6

Output Current (Amps)

85 VAC

115 VAC

230 VAC

265 VAC

CEC

Figure 7

− Efficiency vs. Output Current at Four Line Voltages, Room Temperature, 60 Hz.

The CEC requirement for a 3 W charger is an average of 58.9% at both 115 VAC and

230 VAC*.

POWER LEVEL

25%

50%

75%

100%

Ave

115 VAC

67.8%

63.5%

60.6%

56.7%

62.2%

230 VAC

66.5%

62.6%

60.1%

56.9%

61.5%

The average efficiency exceeds the CEC requirement by a considerable margin at both

input voltages.

*Refer to the California Energy Commission Appliance Efficiency Regulations (CEC 400-

2005-012).

EPR-84 Datasheet(PDF) 17 Page - Power Integrations, Inc.

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