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Hobby Circuits designed by Dave Johnson

Last Updated on: Tuesday, October 24, 2017 03:04 PM

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!



Rectifier Circuits
 
Circuits Designed by David Johnson, P.E. :

Energy Harvesting using a Current Transformer

Full Wave Rectifier

Ideal Blocking Diode Circuit for Photovoltaic Solar Panels

Ideal Diode Function

Isolated Miniature AC/DC Power Supply

Laser Light Detyector-10Mhz to 20Mhz

LED Array powered by 24 VAC

LM317 adjustable voltage regulator used in Battery Eliminator Circuit

Low Power 12,000 Volt Power Supply

Low Power AC to DC Power Supply

Minature 24VAC Isolated +5V Supply

Miniature Isolated AC/DC Power Supply

Monitors AC Current

Nine-Volt Battery Eliminator

Non-Isolated Off-Line AC to DC Power Supply

On/Off Flip/Flop Circuit with Automatic Timeout

Photovoltaic Solar Panels-Ideal Blocking Diode Circuit

Plus & Minus DC Power Supply

Power Supply-24 Volts AC to 24 Volts DC

Precision Fullwave Rectifier

Protects from Battery Polarity Reversal

PV Solar Panels-Ideal Blocking Diode Circuit

Rectifier-Fullwave

Reduce voltage to Photovoltaic Solar Panel with Ideal Diode

Touch Switch 240VAC Capacitance-Based Touch Switch

RF Signal Detector at 2.45GHz

Tester 4-20ma Current Loop

Very Loud Pulsating Beeper

Voltage Boost to Series Regulator provided by Capacitor

White LEDs powered by 24V

10mhz to 20mhz Laser Light Detector

12kv Power Supply

12v Cooling Fan Thermostat

18v AC to DC Power Supply

24 Volts AC to 24 Volts DC Power Supply

240VAC to 5VDC Power Supply

24V DC Powered Beeper with 4 Separate Inputs

24-Volt AC Powered Isolated +5V Supply

4-20ma Current Loop Tester

9v Battery Eliminator

A Current Transformer used to Harvest Energy

AC Current Monitor

AC to DC (240v to 5v)Power Supply

AC to DC 18V Power Supply

AC to DC Power Supply requires Low Power

AC/DC relay from Charge Coupled MOSFET

Battery Eliminator

Caps Provide Voltage Boost to Series Regulator

Charge Coupled MOSFET Relay #2

Circuit Eliminates 9v Battery

Circuit Protects from Battery Polarity Reversal

Classic Plus & Minus DC Power Supply

CMOS Schmitt Trigger IC Makes VCO

Convert AC to DC signal with is Full Wave Rectifier

Display RF Signal Strength


 

Hobby Circuits by Category

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Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches



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