Fig 2. : Spark frequency versus Rs and C

Fig. 3 : Voltage across the capacitance with Rs = 15 kOhms and C = 1

µF

611

16

21

2

3

5

10

20

Rs (kOh ms )

F (Hz)

C=0.47µF

C=1µF

C=2.2µ

F

C=1.5µ

F

C=2.7µ

F

C=3.3µ

F

The couple Rs/C can be chosen with the previous

curve. Keep in mind the Rs maximum limit for

which the system would not work when the AC

mains is minimum.

The

next

curve

shows

the

beha vior with

Rs=15kOhms and C=1

µF.

®

FLC02-200D

5/7