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Control
Circuits Page 1-h
Control Circuits: #-B
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Last Updated on:
Thursday, November 30, 2017 01:57 PM |
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Links to electronic
circuits, electronic schematics, designs for engineers, hobbyists, students &
inventors:
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[ad-DAJ-FS-split.htm] |
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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.... [Hobby Corner
Circuit by Dave Johnson] |
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Automatic Gain Control AGC - (electronic circuit added 7/03)
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Automatic Incline Railway Circuit - The drawings and photos
below are for an operating incline railway that was built by the
London Model Railroad Group for its 'O' scale model railway club
located at London, Ontario, Canada. This is a single car model
loosely based on a double car incline that operated at Port Stanley,
Ontario. [from Rob Paisley's Model Train web site] |
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Automatic latch-off circuit saves batteries - 4-Jan-07 Issue
of EDN Persistent latch prevents batteries from overdischarge....
[Design Idea by Kieran O'Malley, On Semiconductor, West Kingston, RI;
Edited by Brad Thompson and Fran Granville] |
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Automatic Power Switch - This circuit turns a “slave” device on when
a “master” device is turned off or on depending on state of S1. The
circuit is designed to be reliably and solidly on or off. Some simpler slave
switches can mistrigger or trigger partially,….[Designed by Andrew R. Morris
(added 09/05)] |
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Automatic power-off circuit saves battery - 12/05/96 EDN-Design
Ideas You can use many techniques, such as using low-power ICs and
low-power wait, stop, or sleep modes, to minimize power. The small, simple
power-off circuit in Figure 1demonstrates yet another power-saving approach.
The circuit and a simple program (Listing 1) can sense a �C system's lack of
activity.... [Design Idea by Jose Carlos Cossio, Santander, Spain] |
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Automatic Pump Shut Off Circuit - Put together an automatic system
to switch off a pump when there is no more fluid left to pump…. [REUK -
Renewable Energy UK website] |
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Automatic Speed Controller for Fans & Coolers - During summer
nights, temperature is initially quite high. As time passes,
temperature starts dropping. Also, after a person falls asleep,
metabolic rate of one’s body decreases. Thus, initially fan/cooler needs
to be run at full speed. As time passes, one has to .… (added 10/05)
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Automatically turn secondary lamp on or off - 28-May-09 Issue of EDN
A transformer and a relay are all you need to automatically turn a spare lamp
on or off.... [Design Idea by Vladimir Oleynik, Moscow, Russia] |
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Autonomous Fan Control for Processor Systems using the LM85 -
National Semiconductor Application Note (app note added 6/06)
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Auxiliary Power Supply & Wall-Plug Adaptor - (application / block
diagram added 6/07) |
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Avoiding Passive-Component Pitfalls - AN-348 Analog Devices
Application Note (app note added 2/06) |
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AVR microcontroller makes improved motor-controller - 17-Oct-02
Issue of EDN The circuit in Figure 1 provides a novel method of reading
the pulse train using an Atmel (www.atmel.com] AVR processor, from a typical
radio-controlled receiver, and to determine the velocity of a motor. To
capture the pulse train from a typical receiver, you need an external
interrupt that triggers based on a rising and a falling edge.... [Design Idea
by Anthony Di Tommaso, Cranberry Township, PA, and George Simonoff,
Petersburg, OH] |
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Back EMF PM Motor Speed Control - Back-EMF refers to using the
voltage generated by a spinning motor (EMF) to conclude the speed of the
motor's rotation. This can be used in motion control algorithms to modulate
the velocity or to compute the angular distance the motor has traveled
over.... |
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Bang Bang Thermostat is Simple & Efficient - 11/06/97 EDN-Design
Ideas Perhaps simplest and oldest feedback loop is
nonproportional, all-or-nothing, "bang-bang" rmostat. Fully turning on a
heater when temperature is below setpoint and off when it's above
setpoint is a straightforward example of a servomechanism. Yet, elementary and
crude as servomechanisms are, examples surround.... [Design Idea by W Stephen
Woodward, University of North Carolina--Chapel Hill] |
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Base Station Closed-Loop RF Power Control with LMV232 Crest-Factor Invariant
Detector - National Semiconductor Application Note (app note
added 6/06) |
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Basic Stamp I & PC Relay Controller - This project shows you how to
build a relay controller using the Basic Stamp I interfaced to the PC serial
port. The Visual Basic 5 software developed for the interface lets you
interact with the Basic Stamp to turn ON/OFF up to (2) relays attached to the
Basic Stamp I/O pins. As shown below in the screen capture of PC-Relay,
it's easy to select the desired com port using the drop-down
menu....(electronic circuit added 4/05) |
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BASIC Stamp Thermoelectric Cooler 2 - 12/07/00 EDN-Design Ideas
PDF contains multiple circuits, scroll to find the one of interest....EDN is
migrating links. This link is not verified. Search the "title" + "EDN"
for new link. |
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