1 / 8

RLC Circuits

RLC Circuits. An AC circuit is made up with components. Power source Resistors Capacitor Inductors Kirchhoff’s laws apply just like DC. Special case for phase. Ohm for AC. R. C. L. A series RLC circuit can be made from each component. One loop Same current everywhere

torin
Download Presentation

RLC Circuits

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RLC Circuits

  2. An AC circuit is made up with components. Power source Resistors Capacitor Inductors Kirchhoff’s laws apply just like DC. Special case for phase Ohm for AC R C L

  3. A series RLC circuit can be made from each component. One loop Same current everywhere Reactances are used for the capacitors and inductors. The combination of resistances and reactances in a circuit is called impedance. Series RLC i R L v C

  4. Phase shifts are present in AC circuits. +90° for inductors -90° for capacitors These can be treated as if on the y-axis. 2 D vector Phasor diagram Vector Map VL=IXL VR=IR VC=IXC

  5. Vector Sum • The current is the same in the loop. • Phasor diagram for impedance • A vector sum gives the total impedance. XL XL XC Z R R XC

  6. The total impedance is the magnitude of Z. The phase between the current and voltage is the angle f between Z and the x-axis. Vector Sum XL XC Z f R

  7. Phase Changes • The phase shift is different in each component.

  8. Power loss in an AC circuit depends on the instantaneous voltage and current. Applies to impedance The cosine of the phase angle is the power factor. Power Factor P 0 t next

More Related