8

Preliminary

Rev 1.1a

© 2021 Sendyne Corp

Sendyne SIM100MLP

Uncertainties in capacitance estimates

When there is no activity on the IT power system it is expected that individual capacitance estimates will have a high

level of uncertainty. Nevertheless, the total value of isolation capacitance (the parallel combination of all capacitanc-

es) and the estimates for maximum energy that can be stored on them would be accurate. The uncertainty in capaci-

tance estimation will become small (less than ±5%) as soon as there is activity on the IT power bus.

+3%

+5%

-3%

-5%

Reported Uncertainty (%)

SW

CH1

CH2

250 kΩ

500 V

VX1

VX2

0

20

40

60

80

100

120

140

160

180

206

211

216

221

226

231

236

241

246

251

Estimate of R

F,P (kΩ)

Histogram of R

F,P estimates over 10 experiments (25

o

C)

-10%

+10%

1.8%

R

F,P

Figure 10: Distribution of reports over 10 experiments (1200 data points) and illustration of uncertainty reported

by SIM100