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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!

Motor Control Circuits
Circuits Designed by David Johnson, P.E. :

Brush Motor Speed 12V Controller

Classic Linear 5v Supply using 6.3VAC Transformer

Computer Controlled PWM Circuit

Cooling Fan Thermostat (12v)

CW & CCW Alternating Motor Driver

H Bridge Motor Controller uses Low Power

Logic Controlled 12v DC Motor with Automatic Brake

Low Power H Bridge Motor Controller

Low Voltage Latch Circuit

PWM Circuit for Motor Speed Control

PWM Motor Controller uses a 555 Timer

Rapidly Stops DC Motor Drive 

Solar-Powered Pump Motor Controller

Thermostat for 12v Cooling Fan

Two Pushbutton Motor Controller

Water Pump controlled by Solar Power

12v Brush Motor Speed Controller

12v Cooling Fan Thermostat

12v DC Motor with Logic Controlled Automatic Brake

2 Pushbutton Motor Controller

555 Timer Forms Simple Circuit PWM Motor Controller

Alternating CW & CCW Motor Driver

Automatic DC Motor Brake


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



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

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