Inductor Current Response

Remember that a first order rl parallel circuit has one resistor or network of resistors and a single inductor. Natural and forced response.

A Input Voltage Response And B Inductor Current Response

Lessons In Electric Circuits Volume I Dc Chapter 16

Ece 201 Circuit Theory 11 Step Response Of An Rl Circuit

Capacitor i v equation in action.

Inductor current response. The resistance r is the dc resistive value of the wire turns or loops that goes into making up the inductors coil. Acting in accordance with faradays law and lenzs law the amount of impedance to the buildup of current is proportional to the rate of change of the current. Here is a sample rl circuit shown with zero input response and zero state response.

After finding the zero input response and the zero state response of an rl parallel circuit you can easily find the total response of the circuit. When a battery is connected to a series resistor and inductor the inductor resists the change in current and the current therefore builds up slowly. We look at the inductor i v equations and notice how important it is to give inductor current a place to flow.

A lr series circuit consists basically of an inductor of inductance l connected in series with a resistor of resistance r. Inductor kickback 1 of 2. A capacitor integrates current.

You know that the voltage across an inductor leads the current because the lenz law behavior resists the buildup of the current and it takes a finite time for an imposed voltage to force the buildup of current to its maximum. After charging fully to the final level of current it acts as a short circuit current with no voltage drop. A fully discharged inductor no current through it initially acts as an open circuit voltage drop with no current when faced with the sudden application of voltage.