ECE 201 Circuit Theory I1 Capacitance Capacitance occurs whenever electrical conductors are separated by a dielectric, or insulating material. Applying.

Slides:

Advertisements

Similar presentations

Scott Starks, PhD, PE Department of Electrical & Computer Engineering UTEP.

Advertisements

DC CIRCUITS: CHAPTER 4.

Lecture 4 Capacitance and Capacitors Chapter 16.6  Outline Definition of Capacitance Simple Capacitors Combinations of Capacitors Capacitors with.

Capacitors A basic capacitor has two parallel plates separated by an insulating material A basic capacitor has two parallel plates separated by an insulating.

Capacitors A device storing electrical energy. Capacitor A potential across connected plates causes charge migration until equilibrium VV – + –q+q Charge.

Electric Energy and Current Chapter 18 Electrical Potential Energy- the potential energy between charges at a distance, or between a charge and an electric.

17-7 Capacitance A device that stores electric charge Two plates that are separated by an insulator Used in electronic circuits Store charge that can later.

Capacitance. Device that stores electric charge. Construction: A capacitor is two conducting plates separated by a finite distance Typically separated.

Capacitance and Dielectrics

Capacitors insulating dielectric Capacitors store charge. They have two metal plates where charge is stored, separated by an insulating dielectric. To.

1 Capacitance and Dielectrics Chapter 27 Physics chapter 27.

Lecture 8 Friday January 30 Capacitors and Review.

Lesson 14 – Capacitors & Inductors. Learning Objectives Define capacitance and state its symbol and unit of measurement. Predict the capacitance of a.

ECE 201 Circuit Theory I1 Inductance Inductor –A coil of wire wrapped around a supporting core (magnetic or non-magnetic) –The time-varying current in.

Capacitance Physics Department, New York City College of Technology.

ECE201 Lect-171 Capacitors (6.1); Inductors (6.2); LC Combinations (6.3) Dr. Holbert April 5, 2006.

Series-Parallel Combinations of Inductance and Capacitance

Capacitors and Inductors Discussion D14.1 Section 3-2.

Chapter 6 Capacitors and Inductors

Capacitance and Dielectrics

Lecture 101 Capacitors (5.1); Inductors (5.2); LC Combinations (5.3) Prof. Phillips March 7, 2003.

Lecture - 4 Inductance and capacitance equivalent circuits

1 TOPIC 5 Capacitors and Dielectrics. 2 Capacitors are a means of storing electric charge (and electric energy) It takes energy to bring charge together.

Capacitors. What is a capacitor? Electronic component Two conducting surfaces separated by an insulating material Stores charge Uses –Time delays –Filters.

-Combinations of Capacitors -Energy Stored in a Charged Capacitor AP Physics C Mrs. Coyle.

Electric Potential AP Physics Chapter 17. Electric Charge and Electric Field 17.1 Electric Potential Energy and Potential Difference.

EENG 2610: Circuit Analysis Class 10: Capacitors and Inductors

305221, Computer Electrical Circuit Analysis การวิเคราะห์วงจรไฟฟ้าทาง คอมพิวเตอร์ 3(2-3-6) ณรงค์ชัย มุ่งแฝงกลาง คมกริช มาเที่ยง สัปดาห์ที่ 9 Reactive.

Lecture 15 Review: Energy storage and dynamic systems Basic time-varying signals Capacitors Related educational modules: –Section 2.2.

Capacitors, Batteries. Capacitors Create a difference in Potential based upon how much charge is stored V = q/C (V) C : Capacitance C = k ε o A /d k :

Chapter 25 Lecture 20: Capacitor and Capacitance.

1 Capacitance and Capacitors Capacitance:  Any volume (material) that has net charge in it produces electric potential around it (Gauss’ Law).  The ratio.

Electric Potential: Charged Conductor

EKT 101 Electric Circuit Theory

1 ECE 3144 Lecture 26 Dr. Rose Q. Hu Electrical and Computer Engineering Department Mississippi State University.

12/4/2016 Advanced Physics Capacitance  Chapter 25 – Problems 1, 3, 8, (17), 19, (33), 39, 40 & 49.

Capacitors The capacitor is an element that continuously stores charge (energy), for later use over a period of time! In its simplest form, a capacitor.

Chapter 11 Capacitance. 2 Objectives –After completing this chapter, the student should be able to: Explain the principles of capacitance. Identify the.

0 ECE 222 Electric Circuit Analysis II Chapter 4 The Capacitor Herbert G. Mayer, PSU Status 2/24/2016 For use at CCUT Spring 2016.

What charge exists on a 30 μF capacitor (fully charged) with a 120 V potential difference between its plates and what is the energy stored? Ans: 3.6.

1 ECE 3301 General Electrical Engineering Section 22 Capacitance.

0 ECE 222 Electric Circuit Analysis II Chapter 4 The Capacitor Herbert G. Mayer, PSU Status Status 5/3/2016 For use at CCUT Spring 2016.

Capacitance. Device that stores electric charge. Construction: A capacitor is two conducting plates separated by a finite distance Typically separated.

Review: Kirchoff’s Rules Activity 13C Achieved level: Qn. 1; Merit: Qn. 2, 3, 4, 5, 6 Excellence: Qn. 3 d, 6 b) iv. Challenge Problem on paper at the front.

FUNDAMENTALS OF ELECTRICAL ENGINEERING [ ENT 163 ] LECTURE #5a CAPACITORS AND INDUCTORS HASIMAH ALI Programme of Mechatronics, School of Mechatronics Engineering,

Capacitors A capacitor is a device that has the ability “capacity” to store electric charge and energy.

Inductance and Capacitance Lecture 4. Inductance and Capacitance Inductor Relationship between voltage, current, power and energy Capacitor Relationship.

Chapter 25 Capacitance In this chapter we will cover the following topics: -Capacitance C of a system of two isolated conductors.

Chapter 25 Capacitance In this chapter we will cover the following topics: -Capacitance C of a system of two isolated conductors.

Chapter 11 Capacitance.

Capacitance Capacitance occurs whenever electrical conductors are separated by a dielectric, or insulating material. Applying a voltage to the conductors.

Inductance and Capacitance

EKT 101 Electric Circuit Theory

EKT 101 Electric Circuit Theory

Capacitors, Batteries.

Electric Potential AP Physics Chapter 17.

Capacitors A basic capacitor has two parallel plates separated by an insulating material A capacitor stores an electrical charge between the two plates.

Potential Difference and Capacitance

Electric Potential: Charged Conductor

FIGURE 12-1 A Leyden jar can be used to store an electrical charge.

Capacitance Capacitance occurs whenever electrical conductors are separated by a dielectric, or insulating material. Applying a voltage to the conductors.

Capacitor Is a device that stores energy by maintaining a separation between positive and negative charge. Compare stored energy / charge to a bucket.

Capacitors A basic capacitor has two parallel plates separated by an insulating material A capacitor stores an electrical charge between the two plates.

Capacitance Capacitance occurs whenever electrical conductors are separated by a dielectric, or insulating material. Applying a voltage to the conductors.

DC CIRCUITS: CHAPTER 4.

Presentation transcript:

ECE 201 Circuit Theory I1 Capacitance Capacitance occurs whenever electrical conductors are separated by a dielectric, or insulating material. Applying a voltage to the conductors can displace the charge within the dielectric. Current does not actually flow through the dielectric.

ECE 201 Circuit Theory I2 Capacitance Capacitor –Structured as two parallel plates

ECE 201 Circuit Theory I3 Capacitor Circuit Symbol (a) Component designation (C) Units – Farads –Usually μF or pF Reference directions for voltage and current (b)

ECE 201 Circuit Theory I4 Voltage-Current Relationship

ECE 201 Circuit Theory I5 Observations The voltage across a capacitor cannot change instantaneously (the current would be infinite). If the voltage across the terminals is constant, the current will be zero. (looks like an open circuit). Only a time-varying voltage can produce a displacement current.

ECE 201 Circuit Theory I6 Express the voltage across the capacitor as a function of the current

ECE 201 Circuit Theory I7 Power and Energy for the Capacitor

ECE 201 Circuit Theory I8 Example 6.4 A voltage pulse described as follows is applied across the terminals of a 0.5μF capacitor:

ECE 201 Circuit Theory I9 Derive the expressions for the capacitor current, power, and energy.

ECE 201 Circuit Theory I10 Power

ECE 201 Circuit Theory I11 Energy

ECE 201 Circuit Theory I12 Energy is being stored whenever the power is positive. Energy is being delivered by the capacitor whenever the power is negative.