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DiscoverCircuits.com, has
26,000+ electronic circuits or schematics
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Control Alarms Circuits
Designed by David A. Johnson, P.E.
Last Updated on:
Monday, April 21, 2008 04:19 AM
Master Category List - Dave's Circuits
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- Automatic DC Motor Brake
In many DC motor powered systems you would like the motor to quickly come to a full stop. This circuit provides an automatic electronic braking action to any DC motor ranging from 6v
to 24v up to 1 amp of current. Some of the component values could be changed for larger motors....
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- Low Voltage H-bridge
TTL type Q and inverted Q inputs control a classic H-bridge circuit, rated at 50 volts and about 10 amps. The circuit can
control power and direction of a DC motor. (added 7/06)
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- PWM Circuit for Motor Speed Control
Sometimes you want to slow down a brush type DC motor. The most efficient way to do this is with a pulse width modulation (PWM) technique. The hobby circuit below can operate from about 3
volts to 15 volts. The frequency is fixed at about 2KHz but the pulse width can be varied from nearly 100% to 0%. ...
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- Two Pushbutton Motor Controller
Two small pushbutton switches, a few diodes and two relays form a method to control on/off power to a brush motor as well as the motor direction. The circuit was originally designed
for a motorized lifting platform.
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More Control Circuits
Master Category List - Dave's Circuits
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