Presentation is loading. Please wait.

Presentation is loading. Please wait.

Thevenin, Norton and Maximum Power Transfer Theorems.

Similar presentations


Presentation on theme: "Thevenin, Norton and Maximum Power Transfer Theorems."— Presentation transcript:

1 Thevenin, Norton and Maximum Power Transfer Theorems

2  Why Thevenin’s Theorem is useful

3  Everything in the original circuit, except the load, maybe replaced by an equivalent circuit. The equivalent circuit consists of a series combination of a voltage source and a resistance.

4 Write these on white board

5 R TH = 5k Ω

6 V TH = 10V

7 Now you can place any load in the circuit you want and the calculations are EASY! =10k Ω.66mA

8 Solving for V TH 10V 5V V TH = V A – V B = 5V Determine V TH

9 Determine R TH

10 What is the resistance from point a to b?

11

12

13

14

15  C7mGs&NR=1&feature=fvwp C7mGs&NR=1&feature=fvwp  https://www.facebook.com/photo.php?v= https://www.facebook.com/photo.php?v=

16  Everything in the original circuit, except the load may be replaced by an equivalent circuit. The equivalent circuit consists of a parallel combination of a current source and a resistance.

17 2mA Norton Current I N Norton Resistance

18  There are a bunch of rules for how to calculate the Norton Current and Norton Resistance. However, a shortcut is to find the Thevenin Equivalent circuit and then convert it to a Norton

19 2mA

20

21  Besides using traditional circuit analysis using Ohm’s Law, or Superposition, Mesh Analysis, Thevenin’s Theorem, and Norton’s Theorem, there are other circuit analysis techniques. A couple include:  Nodal Analysis and Millman’s Theorem Do more hw problems from back of chap 12 (9, 10, 11, or 12) if time

22  In the following circuit solve for V TH, R TH, I N, R N, I L and V L

23 Solve for V L using traditional Ohm’s Law technique, Mesh Analysis, and Thevenin Analysis

24  See notes

25 R L (Ω)0V T (V)I (A)P L (W)P i (W)P T (W)Eff (%)

26

27 ? What circuit analysis technique can we use to solve for this? Thevenin’s Theorem.R TH = 5k Ω 6kOhm I’ve checked this technique using Ohm’s law and it works. See following numbers:

28

29

30

31

32

33 SPST SPDTDPST DPDT


Download ppt "Thevenin, Norton and Maximum Power Transfer Theorems."

Similar presentations


Ads by Google