上海惠桑電源技術有限公司

Shanghai Winsun Power Supply Technology Co., Ltd.

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Product

1. WS250-1FAC


High power density SMPS used in telecommunication equipment.
2. Parameters

Input Parameters

Item

MIN

TYP

MAX

Units

Notes

Input Voltage Range

90

110/240

264

Vac

Derating: Output power is 100W@110Vac without fan;At full range of 90--264Vac & rated output power, the 25CFM is  necessary.

Frequency

47

50/60

63

Hz

 

Max Input Current

 

 

4

A

 

Power Factor

0.9

 

AC Input System

1P3W

 

220Vac

Oputput Parameters

Output Channels

Single

Notes

Output Voltage(V)

56V

 

Output Range(V)

55.5V~56.5V

 

Output Current(A)

4.46A

 

Rated Output Power(W)

250W

 

Line Regualation(%)

 ±1%

 

Load Regulation(%)

 ±1%

 

Ripple & Noise (mV)

<350mV

@nominal input & rated output, with 0.1uFceramic and 10uF electrolytic capacitor, test widthband is 20MHz

Efficiency(%)

91%

@220Vac & rated output power

Start-up Time(s)

≤1s

@220Vac

Dynamic Response Overhoot

 ±5%

25%~50%~75%

Dynamic Response Recovery Time

(us)

±3% (500us)

Others

Item

MAX

TYP

MAX

Units

Notes

Output start-up Characteristics

                -----

monotone rise.

Output Turn-off Characteristics

                -----

monotone decreasing.