Jeulin 281 265 Mode D'emploi page 13

Electricity
Charging a capacitor at
constant voltage
Ref :
281 265
ENGLISH
1
On the previous screen grab, the source voltage E = 9.15 V (curve 1), the
voltage U at the terminals of the 100 µF capacitor and the current i (curve 3)
c
were entered simultaneously.
The curves obtained confirm the observations made in the previous
paragraph.
3.5 Influence of the R and C parameters
Influence of the resistance
On the same Généris 5 screen, the two curves U
corresponding to the two pairs (C = 100 µF, R = 100 Ω): curve u4(t) and
(C =100 µF, R = 1000 Ω): curve u5(t).
In the Modelling workshop of Généris 5, we apply the "Exponentially
increasing" predefined model to the two curves that proposes the following
equation:
U
12
2
t
−
= −
e τ
) t ( a 1 ( )
c
3
(t) are combined,
c