Design of Switch Mode Power Supplies

Switch
Mode Power Supplies | Copyrights
| What is
that everything?

The following programs calculate
the relevant currents and voltages for various switch mode power supplies and
display these graphically.

Furthermore the programs give suggestions for
appropriate choking coils and high frequency transformers.

Description

Type of power supply

Help

The input voltage is converted into a lower
output voltage.

Buck
Converter

Help with the Buck/Step-down Converter

The input voltage is converted into a
higher output voltage.

Boost
converter

Help for the
Boost converter

The input voltage is converted into a
negative voltage.

Buck-Boost

converter

Help for the
Buck-Boost

Several isolated output voltages, up to
approx. 250 are possible.

Flyback
converter

Help for the
Flyback converter

One electrically isolated voltage, up to
approx. 100 Watts.

Single
Transistor
Forward converter

Help for the
Single Transistor
Forward
converter

One electrically isolated voltage, up to
approx. 1 KW.

Two-Transistor

Forward converter

Help for the
Two-Transistor Forward Converter

One electrically isolated voltage, up to
few KW.

Half-Bridge

Push-Pull Converter

Help for the
Half-Bridge
Push-Pull Converter

One electrically isolated voltage, up to
many KW.

Full-Bridge

Push-Pull converter

Help for the
Full-Bridge
Push-Pull converter

Switch mode power suppply for sinusoidal mains
current.

Power
Factor Pre-regulator (PFC)

Help for the
Power Factor
Pre-regulator

Calculation of a inductor L for a max. current
I.

Inductor

calculation

Help with the
Inductor
calculation

Start
of page | What is that
everything?

Note!

Circuits and procedures are indicated without consideration for the
patent position.
For commercial use make sure if necessary of all
existing requirements for protection.
The playback of customs
name, trade name, trade marks etc.. on these pages entitled also
without special indication not to the acceptance to the fact that
such names in the sense of the registered trade mark and trademark
acts would be to be regarded as free and therefore by everyone may
use. These pages are protected in copyright matters . All rights,
also those the translation or the duplication of the pages, or
sections from it, are reserved.
No part of these pages may be
reproduced without written permission from the authors. Offences are
subject to penal provisions of the copyright law.
The contents
of these pages were carefully compiled. The authors for the
correctness of specification, notes or pieces of advice nevertheless
do not take over adhesion.

What is that everything?

Primarily this Website was written for people who know the basics of
switchmode power supplies. We did not consider the control of
the transistors, as well as certain preventive measures (discharge sets,
current limitings).
The suggestions for the ferrite cores are
approximations based on the manufacturer tables as well as the books
Hirschmann/Hauenstein: Schaltnetzteile [1] and Keith Billings: Switch Mode
Power Supply Handbook [2]. Check in any case the specification given by us with
the appropriate data sheets.

This Website is optimized for:

Version 5.5

Version 6

Start
of page | Switched mode
power supplies | Copyrights
|

Updated on 12/17/2001

By Dr. Heinz
Schmidt-Walter , Holger Wenzel,
Thomas Zänker, Richard Morgan and Johnalan Kegan.