RC Circuit - Parallel Circuit

Parallel Circuit

The parallel RC circuit is generally of less interest than the series circuit. This is largely because the output voltage is equal to the input voltage — as a result, this circuit does not act as a filter on the input signal unless fed by a current source.

With complex impedances:

I_R = \frac{V_{in}}{R}\,

and

I_C = j\omega C V_{in}\, .

This shows that the capacitor current is 90° out of phase with the resistor (and source) current. Alternatively, the governing differential equations may be used:

I_R = \frac{V_{in}}{R}

and

I_C = C\frac{dV_{in}}{dt} .

When fed by a current source, the transfer function of a parallel RC circuit is:

\frac{V_{out}}{I_{in}} = \frac{R}{1+sRC} .

Read more about this topic:  RC Circuit

Famous quotes containing the words parallel and/or circuit:

    “There is a parallel between the twos and the tens. Tens are trying to test their abilities again, sizing up and experimenting to discover how to fit in. They don’t mean everything they do and say. They are just testing. . . . Take a good deal of your daughter’s behavior with a grain of salt. Try to handle the really outrageous as matter-of-factly as you would a mistake in grammar or spelling.”
    —Stella Chess (20th century)

    “We are all hostages, and we are all terrorists. This circuit has replaced that other one of masters and slaves, the dominating and the dominated, the exploiters and the exploited.... It is worse than the one it replaces, but at least it liberates us from liberal nostalgia and the ruses of history.”
    —Jean Baudrillard (b. 1929)