AN2640 datasheet(31/36 Pages) STMICROELECTRONICS

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AN2640

Board description

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6.3.2

PF, THD and ballast efficiency

The power factor, total harmonic distortion of current and ballast efficiency are measured

and the results are shown in Table 4, 5, 6, and 7.

6.3.3

Electromagnetic compatibility

The EMC tests have been performed according to the EN55015 standard (Limits and

methods of measurement of radio disturbance characteristics of electrical lighting and

similar equipment).

The Agilent E7401A EMC Analyzer has been used as test equipment.

Table 4.

24 W lamp power

Mains

THD

η%

185 V at 50 Hz

0.968

17.6

88.2

230 V at 50 Hz

0.949

20.0

89.3

265 V at 50 Hz

0.923

22.0

89.9

Table 5.

39 W lamp power

Mains

THD

η%

185 V at 50 Hz

0.983

13.5

90.4

230 V at 50 Hz

0.970

15.7

90.6

265 V at 50 Hz

0.956

17.4

90.6

Table 6.

54 W lamp power

Mains

THD

η%

185 V at 50 Hz

0.989

11.3

94.1

230 V at 50 Hz

0.982

13.0

94.4

265 V at 50 Hz

0.972

14.4

94.6

Table 7.

80 W lamp power

Mains

THD

η%

185 V at 50 Hz

0.992

10.9

97.6

230 V at 50 Hz

0.988

11.1

98.0

265 V at 50 Hz

0.980

14.6

98.2

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