Switching Power Supply Fundamentals

Electronics Engineering/Switching Power Supply Fundamentals

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Welcome to the course EE 230.

|  | EE230 Edit/View

* Electronic Engineering
* EE Switching Power Supply Fundamentals
* The Linear Regulation Problem
* The Basic unregulated switching supply
* The Basic regulated switching supply

## Assumed Understanding or Prerequisites

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* A basic course in computer hardware covering building and repair (A+ cert course).
* OS 1 or more
* Windows file system and general program use
* Linux file system and general use, with working WINE install
* EE 111 Digital Electronics
* EE 112 Electronics fundamentals
* EE 113 Analog Electronics Devices
* EE 90 Introduction to Electronics or the folowing
* oscope DMM and power supply use
* Breadboarding
* Schematics
* SPICE
* required algebra 1 geometry 1
* recommended algebra 2 calculus 1
* Linear Technology's LTspice IV / Switcher CAD IV installed

## Syllabus

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This is a introduction in to power supplies and Switch mode power supply theory. This course will cover,

* Zenner and lm78xx based linear regulation, and why it doesn't work well.
* Basic unregulated switching power supplies
* Voltage feedback regulation
* Current loop limit regulation
* Inductor based buck, boost, buck boost, invert, non isolated flyback
* Capacitor based charge pump, buck, boost, invert

The continuation of this course is EE 330 Switching Power Supplies 2

Before contributing please see the talk page for this class for more information.EE 230 Switching Power Supply Fundamentals

## Lecture plan

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* EE 230 Digital Electronics
* Lecture 1, The Linear Regulation Problem.
* Lecture 2, The Basic unregulated switching supply
* Lecture 3, The Basic regulated switching supply
* Lecture 4, Current sense
* Lecture 5, Soft start
* Mid-term Exam
* Lecture ?, Boost, Invert, Flyback
* Lecture ?, Linear technology's integrated switch, National Semiconductor simple switcher, TI integrated switch
* Final Exam

## Textbooks and required reading/reference

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* recommended reading
* Demystifying Switching Power Supplies, Raymond A. Mack, Jr. ISBN 0-7506-7445-8

## Lab Materials

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* A computer with
* windows 98,2000,ME,XP or Linux distribution with WINE

## Datasheets Relevant

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### Logic

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|  | Schmitt Trigger

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Quad NAND 3-18V  | CD4011 | CD4093
Dual D flipflop 3-18V  | CD4013 |

### Timer/Driver

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| 200mA sink/source  | 100mA sink 10mA source

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| NE555 | TLC555

### opamps

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main product table opamps below 50mhz TI

speed  | 1Mhz  | 2Mhz  | 4Mhz  | 10Mhz

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general purpose  |  |  |  |
Rail to Rail input  |  |  |  |

#### Comparators

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speed  | 1Mhz  | 2Mhz  | 4Mhz  | 10Mhz

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general purpouse  |  |  |  |
Rail to Rail input  |  | NS LM339 |  |

### Mosfets & BJTs

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P channel

amps\volts  |  |  | -30  |  |

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5A  |  |  | FDC610PZ 4.9A 42mΩon +-25Vgs |  |

N channel

amps\volts  |  |  | 30  |  |

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5A  |  |  | FDC653N 35mΩon +-20Vgs |  |

### Diodes

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#### Schottky

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Volts\Amps  | 1A  | 2A  | 3  | 4  | 5

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40V  |  | MBRS2040L |  |  |
60V  | MBRA160T3 |  |  |  |

#### General Purpose Rectifier

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Volts\Amps  | 100mA-300mA  | 1A

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100V TH  | 1N914 916 4148 4448 | 1N4002 1N400x
75V SMT  | 1N914 916 4148 4448 |

### Inductors

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Rseries\Ipeak  | 2  | 3.2DC 3.4(10% Ldrop) 5.2(20% Ldrop)  |  |  |

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65mΩ  |  | [Gowanda 121AT1003V]100uH  |  |  |
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### Capacitors

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IO pins  | 6  | 8  | 18  | 24  | 32

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## Reference books

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## Online resources

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## Learning projects

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## Research projects

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## News

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## Wikiversity activities

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### Active participants

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### To do

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## See also

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EE230 Edit/View

* Electronic Engineering * EE Switching Power Supply Fundamentals * The Linear Regulation Problem * The Basic unregulated switching supply * The Basic regulated switching supply

| Educational level: this is a tertiary (university) resource.

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| Type classification: this resource is a course.

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| Subject classification: this is an engineering resource.

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