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Circuits designed by David Johnson, P.E.
Last Updated on: Friday, December 29, 2017 02:53 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!




Silicon Controlled Rectifier (SCR) Circuits
Circuits Designed by Dave Johnson, P.E. :

10mhz to 20mhz Laser Light Detector

12kv Power Supply

12v Cooling Fan Thermostat

18v AC to DC Power Supply

Ideal Blocking Diode Circuit for Photovoltaic Solar Panels

Low Power AC to DC Power Supply

Minature 24VAC Isolated +5V Supply

Miniature AC to DC Power Supply

Miniature Isolated AC/DC Power Supply

Nine-Volt Battery Eliminator

Non-Isolated Off-Line AC to DC Power Supply

On/Off Flip/Flop Circuit with Automatic Timeout

Power Supply-24 Volts AC to 24 Volts DC

Precision Fullwave Rectifier

Reduce voltage to Photovoltaic Solar Panel with Ideal Diode

Very Loud Pulsating Beeper

White LEDs powered by 24V

240VAC to 5VDC Power Supply

4-20ma Current Loop Tester

9v Battery Eliminator

Battery Eliminator

Caps Provide Voltage Boost to Series Regulator

Charge Coupled MOSFET Relay #2

Circuit Protects from Battery Polarity Reversal

Classic Plus & Minus DC Power Supply

Energy Harvesting using a Current Transformer

Full Wave Rectifier


 

Dave's Circuits

Hobby Circuits

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