Don  Lancaster's Guru's Lair Magic  Sinewaves   Library
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IMPORTANT NOTE: This page holds the latest current version of Magic
sinewave info. Only the most recent files appear here. There is a separate
archival historical record that is primarily a repository of early development
work that preserves the time line of Magic Sinewave original innovations.

Click for the newest ultra fast     Magic Sinewave Calculators            ( now includes quantization )

                  Click here for a Calculator Tutorial

Click for demo chip and       software availability info

"Magic sinewaves" are repeating long sequences of ones and zeros.
They can get created from ordinary but extremely carefully chosen
digitally switched pulses.

Digital sinewaves with precisely controlled amplitudes and amazingly
low distortions. Compared to traditional PWM, magic sinewaves can
offer far higher efficiencies and lower distortions. With circuitry that
is elegantly simple and microcontroller friendly.

For use in such applications as induction motor speed controls, electric
autos, solar panels, power factor correction, inverters, home energy
efficiency improvers, 400 Hz avionics, UPS, PFC, and special utilities.

The newest steplocked versions of magic sinewaves let you force any
desired number of low harmonics precisely to zero in theory and to
astonishingly low levels in practice. While allowing you to do so at the
highest possible efficiency. By using the fewest switching events.

Only recently have specialized analysis and synthesis tools become
available. Don Lancaster, Synergetics, and several Synergetics
Partners are now in the forefront of this billion dollar opportunity.

Extensive seminars, consulting, sourcecode, tutorials, licensing, CD
ROM's, and a Development Program are newly being offered.

Most library files require an Adobe Acrobat 4.0 plug in for online
viewing.  Offline, these may be accessed by an Acrobat Reader or
an eBook Reader or any other .PDF accepting program.
 

Magic Sinewave Summary MSINEXEC.PDF #65      An "executive summary" on magic sinewaves that gathers together      the key featuers and development history from several earlier      files. Magic sinewaves offer efficiency and power quality advantages.

Click here for the Magic Sinewave library.
Click here for a Magic Sineave intro tutorial.

Click here for the GuruGram 65 source code.
Click here to Contact the Author directly.

Introduction to Magic Sinewaves MSINTRO1.PDF      "Slideshow" style introductory presentation covers the fundamentals      of the new magic sinewave technology. Unique benefits include      highest possible efficiency combined with fewest low harmonics.

Click for the MSINTRO1.PSL sourcecode.
Click for a Magic Sinewave development proposal.
Click for Magic Sinewave Spectral Analysis hints.

Three Phase Magic Sinewaves DELTAMS1.PDF      "Slideshow" style introductory presentation covers modifications       made to magic sinewaves to make them fully three phase compatible.       Includes unique "wrap map" synthesis procedure.

Click for the DELTAMS1.PSL sourcecode.
Click for a Magic Sinewave development proposal.

Ultra Fast MagSine Calculator FASTMSSOL.PDF #73      The very first in a new series of ultra fast and nearly deterministic      Magic sinewave calculators. These are hundreds to thousands of      times faster and more convenient than before. Tutorial review.

Click here for the Ultra Fast MS Calculator.
Click here for the Angle Position Plots.

Click here for a Magic Sinewave tutorial.
Click here for a Magic Sinewave slide show.
Click here for a Magic Sinewave proposal.

Click here for the GuruGram 73 source code.
Click here to Contact the Author directly.

Improved Magic Sinewave Chip NUMSCHIP.PDF #38      Combined data sheet and application note for a second and improved      Magic Sinewave demo/evaluation chip. This MSD28D-05X combinesl      3-phase zeroing of harmonics 2-22 with improved inputs and sync.

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a 3-phase Magic Sinewave tutorial.
Click for a Magic Sinewave development proposal.

Click here to Order MSD28-05X chips & source code.
Click here for the NUMSCHIP.PSL source code.
Click here for additional Consulting services.
Click here to Contact the Author directly.
 

MagSine PIC Programming Guide MSPICPRO.PDF #40      Tutorial guidelines for writing PIC based sourcecode for Magic      Sinewaves. Why PIC? Getting started. Tools. First Principles. A      precision time delay. Delay expansion. Updating. Sync, more...

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a 3-phase Magic Sinewave tutorial.
Click for a Magic Sinewave development proposal.

Click here to Order MSD28-05X chips & source code.
Click here for the MSPICPRO.PSL source code.
Click here for additional Consulting services.
Click here to Contact the Author directly.
 

Steplocked Magic Sinewave Synthesis STEPSYNT.PDF       A tutorial on the properties and synthesis of Steplocked Magic      Sinewaves Fundamentals. A first look. Cheby to the Leby. Steplock      synthesis. Becoming Delta Friendly. For More Help.

Click for a Magic Sinewave development proposal.

Magic Sinewave Visualizations VISMAGSN.PDF #24      Delay and width versus amplitude plots of the two most useful      magic sinewaves reveal that 8-bit data storage can be adequate when      used with care and that only five bytes need stored per amplitude.

Click here for the Magic Sinewave library.
Click here for a Magic Sinweave intro.
Click for a Magic Sinewave development proposal.
Click here for the VISMAGSN.PSL source code.

Magic Sinewave Quantization MSQUANT.PDF #27      Do accurate predictions of the exact changes in Magic Sinewave      distortion and jitter caused by 8-bit quantization for a selected      clock frequency. Includes tutorial and links to useful utilities.

Click for the Magic Sinewave Quantization utility.
Click for the Quantization utility output log data.
Click for the Quantization utility PDF plots.

Click here for the GuruGram library.
Click herefor a Magic Sinweave intro.
Click for a Magic Sinewave development proposal.
Click here for the MSQUANT.PSL source code.

The Saga of the Dripping Stalactites STALAC.PDF #35       Celebrating the beauty of applied mathematics, first through a catalog       of our more obscure "fun with long strings of numbers" topics and       then by way of the Magic Sinewave timeline history.

Click here to reach the Math Stuff library.
Click here for a Magic Sinewave intro.
Click for a Magic Sinewave development proposal.
Click here to Order MSD-28X chips & source code.
 

Magic Sinewave Demo Hardware! MSCHIPS.PDF #33      Combined data sheet and application note for the very first available      Magic Sinewave demo/evaluation chips. This MSD28D-04X offers full      3-phase compatibility + best efficiency zeroing of harmonics 2-22.

Click here for the Magic Sinewave library.
Click here for a Magic Sinewave intro.
Click for a 3-phase Magic Sinewave tutorial.
Click for a Magic Sinewave development proposal.

Click here to Order MSD-28X chips & source code.
Click here for the MSCHIPS.PSL source code.
Click here for additional Consulting services.
Click here to Contact the Author directly.
 

Two Phase Magic Sinewaves MAGS2PH1.PDF #63      A brief note that explores two phase magic sinewaves as might be      useful for motor controls and I-Q modulation schemes. Two chip      solutions appear much cleaner and simpler than single chip ones.

Click here for the Magic Sinewave library.
Click here for a Magic Sineave intro tutorial.

Click here for the GuruGram 63 source code.
Click here to Contact the Author directly.
 

Summary & Development Proposal  MSINPROP.PDF       Basic properties, intro, and features of Steplocked Magic Sinewaves      Guidelines on where to start. Seminars. Development opportunities.      Consulting services. Reference designs. Useful links.

Click here for the Magic Sinewave library.
Click here for a Magic Sineave intro tutorial.

The following information is speculative and not yet proven.
It could lead to a further family of GGMS Magic Sinewaves
with significantly reduced unwnted harmonics.

The premise is this: The first unwanted strong harmonics of a
regular magic sinewave are opposite in sign from similar harmonics
of a bridged magic sinewave. At least for lower amplitudes.

Whether some sort of quadrant by quadrant or cycle by cycle
cancellation can be done without introducing other harmonic
problems or excessive storage remains to be shown.

Filterless Magic Sinewaves? MSNOFILT.PDF #99       Continuing unproven speculation on methods to dramatically       reduce magic sinewave uncontrolled harmonics. Much more work      remains to be done on these cancellation possibilities.                   07/08

Click for a Magic Sinewave tutorial.
Click here for the GuruGram 99 source code.
Click here to Contact the Author directly

GGMS "Split" Magsic Sinesves GGMS.PDF #97      Continuing unproven speculation on methods to dramatically      reduce magic sinewave uncontrolled harmonics. Much more work      remains to be done on this exciting possibility.                              06/08

Click for a Magic Sinewave tutorial.
Click here for the GuruGram 97 source code.
Click here to Contact the Author directly..

Spread Spectrum Magsines MSSSCS.PDF #95      Some not yet proven or fully developed approaches to reducing      additional magic sinewave harmonics through cancellation schemes.      Much more work remains to be done on this exciting possibility..   07/08

Click for a Magic Sinewave tutorial.
Click here for the GuruGram 93 source code.
Click here to Contact the Author directly.

Ask Don a Magic Sinewave question.  View Magic Sinewave Development Proposal.  Place a Magic Sinewave Consulting Order.

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