LS4000 datasheet(5/27 Pages) POWER-ONE

5 / 27 page

Cassette Style

100 Watt AC-DC Converters

S Series PFC

Edition 01/01.2001

5/27

100

150

200

250

300

0.5

1.5

2.5

li [Arms]

Ui [V AC]

04005

0.2

0.4

0.6

0.8

0.7

0.75

0.8

0.85

0.9

0.95

Power Factor

Io/Io nom

Ui = 230 V AC

Ui = 85 V AC

04004

Harm.

3.0

2.5

2.0

1.5

1.0

0.5

I i [mA/W]

3.5

04042

Limit class D according

to IEC/EN 61000-3-2

Fig. 6

Input current versus input voltage at Io nom

Fig. 5

Harmonic currents at the input, IEC/EN 61000-3-2,

class D. Ui = Ui nom, Io = Io nom.

Fig. 7

Power factor versus output current at Ui 230 V AC and

85 V AC.

Static Input current Characteristic

Harmonic Currents

The harmonic distortion is well below the limits specified in

IEC/EN 61000-3-2, class D.

23 t [ms]

100

Iinr [A]

130

Ui = 255 Vrms

Ui = 115 Vrms

04006

Input Inrush Current Characteristic

Fig. 4

Theoretical input inrush current versus time at Ui 255 Vrms

and 115 Vrms, Rext = 0.

Power Factor, Harmonics

Power factor correction is achieved by controlling the input

current waveform synchronously with the input voltage

waveform. The power factor control is active under all oper-

ating conditions.

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