When discussing the AC circuit in two ways:
1) V and I change with respect to time; (time domain analysis)
2) changes in amplitude with the signal frequency. (Frequency domain analysis)
A simple RC circuit analysis
The capacitive formula available
Solution of differential equations above:
Derived as follows:
C fully charged after the discharge of the resistor R in parallel, the discharge curve:
5RC rule of thumb is: when the time t >> 5RC, V charge / discharge to about 1% of the final value.
The time constant of the RC product is called the circuit;
Second, a simple RC circuit battery +
The circuit equation: ;
Solution: ;
A is a constant determined by the initial conditions, when t = 0 V = 0, so that ;
So ;
The derivation process
Charging curve:
Rising from 10% to 90% of the time is 2.2RC.
Derivation:
