Cirrus-logic AN365 Manual do Utilizador descarregar pdf (Página 9)

AN365

AN365REV1 9

4.2.2 Reactive Energy Load Performance

Power Factor Load Current (A) Current Dynamic Range (x:1) Error

sin = 1

120 1 -0.01%

12 10 -0.03%

1.2 100 -0.04%

0.24 500 -0.05%

0.12 1000 -0.04%

0.06 2000 0.06%

0.036 3333 0.02%

0.03 4000 0.01%

Lagging sin = 0.5

120 1 0.17%

12 10 0.24%

1.2 100 0.14%

0.24 500 0.10%

0.12 1000 0.07%

0.06 2000 0.07%

Leading sin = 0.5

120 1 -0.20%

12 10 0.24%

1.2 100 -0.22%

0.24 500 -0.22%

0.12 1000 -0.22%

0.06 2000 -0.21%

Table 7. Reactive Energy Load Performance

-1

-0.5

0.5

0.01 0.1 1 10 100

Percentage Error (%)

Load Current (A)

sin ࢥ = 1 Lagging sin ࢥ = 0.5 Leading sin ࢥ = 0.5

Figure 8. Reactive Energy Load Performance

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Cirrus-logic AN365 Manual do Utilizador Página 9