ESP Application Notes

Elliott Sound Products

Application Notes

Page Last Updated - 03 July 2005

These application notes are presented as a means of making useful circuits and sub-circuits available, along with some information about how they work, test results (where applicable), etc. Some of these are adapted from the projects page, as their application has the potential to be broader than indicated in the project itself. More will be added as time permits.

Few of these (already published or yet to be published) are original, although some have been adapted and changed to the extent that the original may barely be recognisable. As always, if you have a good circuit idea feel free to submit it (along with any reference material).

ESP Main Index Page

ESP Application Notes

No.	Description	Date	Flags
AN-001	Precision rectifiers. Half and full wave types for signal processing, instrumentation, etc.	02 Jun 05
AN-002	Analogue metering amplifiers	15 Jun 05
AN-003	Simple switchmode Supply for Luxeon Star LEDs	18 Jun 05
AN-004	Car dome light extender - make the dome light stay on for a while after the car door is closed	18 Jun 05
AN-005	Zero crossing detectors and comparators, Unsung heros of modern electronics design	20 Jun 05
AN-006	Ultra Simple 5V Switchmode Regulator - voltage regulator version of AN-003	30 Jun 05
AN-007	High Power Zener Diode, boosting normal zeners to allow high power usage	30 Jun 05
AN-008	How to Use Zener Diodes, the things the data sheets do not always tell you	30 Jun 05
AN-009	Versatile DC motor speed controller (and where to get high power geared motors)	03 Jul 05
AN-009/2	DC motor speed controller (Part 2)	04 Jul 05

Manufacturer Application Notes *

No.	Description	Date	Flags
AN-166	Basic Feedback Theory (Philips Semiconductors)	Dec 1988
AN-1000	Mounting Guidelines for the SUPER-220 - Transistor Mounting Techniques (IR)	Unknown
AN-72	A Seven-Nanosecond Comparator for Single Supply Operation (Linear Technology)	May 1998

Each application note may have one or more "flags". These indicate the status of the app. note, and are as follows ...

	The design (or update) is less than 2 months (or thereabouts) old.
	Mains wiring is involved, and is potentially dangerous - heed all warnings ! Note that other app. notes may also need a power supply which also requires mains wiring.
Date	The page was added or updated on the date shown

* Manufacturer Application Notes will most commonly be links to external sites, although a small number may be included on the ESP site. These remain the intellectual property of the original author/manufacturer in all cases.

Updates

ESP reserves the right to change or update application notes, projects and articles without notice, so it is important to be aware that a change may have been made. You should always watch for updates of previously published items. Do not build any of the circuits presented here without checking for updates first. A "new" symbol indicates an addition or update within the last two months or so.

Note Carefully

Please see the ESP disclaimer for important information about this site and the contents thereof.

WARNING Where applicable, mains wiring should be carried out by suitably qualified persons only. Under no circumstances should any reader construct any mains operated equipment unless absolutely sure of his/her abilities in this area. The author takes no responsibility for any injury or death resulting from, whether directly or indirectly, the reader's inability to appreciate the hazards of household mains voltages, lack of knowledge of correct wiring practices, etc. Please read the disclaimer now if you have not done so already.

Please note that these application notes are not supported, so do not ask for assistance or explanations. All circuits are checked for accuracy, but it is not guaranteed that they will work for your application. In the same way that you might find application notes published by semiconductor (or other) manufacturers, you don't e-mail them for help and the same applies here.

Submissions are welcome, but unlike magazines where they may offer prizes or cash for submissions, all I can offer is wide distribution of your idea. Please ensure that any submission is accompanied by full disclosure of references - do not try to claim the work of others as your own.

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Copyright Notice. Application Notes referred to herein, including but not limited to all text and diagrams, are the intellectual property of Rod Elliott and the person or company whose work was referenced in the description, and are Copyright © 2005. Reproduction or re-publication by any means whatsoever, whether electronic, mechanical or electro-mechanical, is strictly prohibited under International Copyright laws. The author / editor (Rod Elliott) grants the reader the right to use this information for personal use only, and further allows that one (1) copy may be made for reference. Commercial use in whole or in part is prohibited without express written authorisation from Rod Elliott and the owner of the copyright in the case of submitted articles.