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Circuits designed by David Johnson, P.E.
Last Updated on: Monday, January 01, 2018 04:03 AM

List of Dave's Circuit Designs

Text & Graphics Copyright © David A. Johnson, PE  --  ALL Rights Reserved.
LINKING to Dave's circuits is permitted but DO NOT COPY CONTENT to your WEB SITE server!

Voltage Regulator Circuits
Circuits Designed by Dave Johnson, P.E. :

240VAC to 5VDC Power Supply

9v Battery Eliminator

Battery Eliminator

Caps Provide Voltage Boost to Series Regulator

Classic Linear 5v Supply using 6.3vAC Transformer

Nine-Volt Battery Eliminator

Ultra Low Power Human Finger Detector

Variable Isolated AC Voltage Spans 0VAC to 280Vac

Voltage Converters-0.5 to 6 Volts

12v to 19v Laptop Power Supply (Concept) 

 

Dave's Circuits

Hobby Circuits

eMail:  David A. Johnson, P.E. about these circuits

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

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Copyright  January, 1998 - January, 2018     David A. Johnson & Associates.  All Rights reserved. 

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