Cirrus Logic AN365 - Manual (Page 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
0.5
1
0.01 0.1 1 10 100
Pe
rc
e
n
ta
ge
Er
ror (
%
)
Load Current (A)
sin ࢥ = 1 Lagging sin ࢥ = 0.5 Leading sin ࢥ = 0.5
Figure 8. Reactive Energy Load Performance