![Page 1: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/1.jpg)
Inductors in Series and Parallel
Information found in Lesson 1420-1.
Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a Trainer
![Page 2: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/2.jpg)
Things to Remember
• Inductors come in many forms. They can look similar to other components, such as a resistor, capacitor, transformer. (Inductors have two leads unless center tapped)
• Inductors do not have stated polarities.
![Page 3: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/3.jpg)
• Placement of the inductors closely together on the breadboard is not as important as maintaining a clean easy to follow circuit.
• Make sure the inductors are connected correctly. This may mean using jumper wires to make clean, easy to follow connections and test points / posts.
![Page 4: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/4.jpg)
Inductors currently in use
![Page 5: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/5.jpg)
100mh Inductor, looks similar to a Capacitor
![Page 6: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/6.jpg)
470mh Inductor, looks similar to a Resistor
![Page 7: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/7.jpg)
470mh Inductor, looks similar to a tantalum Cap, except for the color dots
![Page 8: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/8.jpg)
Experiment 1, Inductors connected in Series
![Page 9: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/9.jpg)
Formula to Calculate Total Series Inductance
LT = L1 + L2 + L3 + … + Ln
![Page 10: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/10.jpg)
Example using the schematic values C
100mH + 55mH + 100mH = 255mH
![Page 11: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/11.jpg)
Fig 2 in 1420-1 to measure XL
![Page 12: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/12.jpg)
Inductance also can be calculated with the following formula if you have the
value of XL.
2T CTfL X
![Page 13: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/13.jpg)
Wiring Diagram, Two Inductors in Series to measure XL
![Page 14: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/14.jpg)
Three Inductors in Parallel, Schematic
![Page 15: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/15.jpg)
Reciprocal Formula
1 2 3
1
1 1 1 1...
T
n
L
L L L L
![Page 16: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/16.jpg)
Example using the schematic values
1 126
1 1 1 38.18
100 100 55
m
m m m
![Page 17: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/17.jpg)
• You can also take the common values and divide by the amount of common inductors to get the total of the common parallel inductors. You would then have two values to work with, in this circuit, to calculate the total inductance.
![Page 18: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/18.jpg)
Example:
• 100 x 10-3 /2 = 50 x 10-3
L1*L2 55 * 50 2.75m
L1 + L2 55 + 50 105m
26.190mh
![Page 19: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/19.jpg)
Inductance also can be calculated with the following formula if you have the
value of XL.
2T CTfL X
![Page 20: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/20.jpg)
• In 1420-1, the author discusses mathematically how to prove ZT with XL and then L. Circuit in Fig 8 works to measure XL to determine LT.
• He wanted to prove mathematically the circuit to measure XL to determine LT works.
![Page 21: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/21.jpg)
• This circuit would not be used by technicians in real life. Technicians would not calculate LT using the method described in the Introduction for Experiment 2.
• The circuits are there to get you used to working with the components and to learn their characteristics.
![Page 22: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/22.jpg)
Fig 8 in 1420-1 Two Inductors in Parallel, to measure XL and verifying LT
![Page 23: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/23.jpg)
Circuit to measure LT, Fig 10 in 1420
![Page 24: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/24.jpg)
Questions?
![Page 25: Information found in Lesson 1420-1. Basic Schematics ... in Series and Parallel Information found in Lesson 1420-1. Basic Schematics, Pictorials, Formulas and Wiring Diagrams on a](https://reader031.vdocuments.us/reader031/viewer/2022030523/5acc36e77f8b9a63398ca524/html5/thumbnails/25.jpg)
The End
Developed and Produced by the Instructors in the CIE Instruction
Department.
© Copyright 11/2011
All Rights Reserved / Nov. 2011