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Battery-operated
remote-temperature sensor drives 4- to 20-mA current loop 12/17/04 EDN-Design
Ideas You can remotely measure temperature using a 4- to 20-mA current
loop as long as 4000 feet and a battery-powered, white-light LED driver. You
usually configure this equipment to provide a programmable, constant current
to an LED from a battery source. The TPS62300 series of ICs, for example,
converts a battery voltage of 2.... [Design Idea by Scot Lester, Texas
Instruments, Dallas, TX] |
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Baxandall Tone Control Circuit - by Ramon Vargas 8-11-04
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Bi-Directional Motor Speed Regulator - 02/05/2004 EDN-Design
Ideas In low-noise analog circuits, a high-gain amplifier serves at
input to increase SNR. The input signal level determines
input-stage gain; low-level signals require highest gain. It is also
standard practice in low-noise analog-signal.... [Designed by Andrew R. Morris
(added 10/05)] |
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Bidirectional VF Control of Single & 3-Phase Induction Motors using the
PIC16F72 - Microchip Application Note Published 27-Jan-05 (app
note added 2/06) |
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Bipolar stepper motor drive - No description available at this
time... |
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Boost Converter - Boost converters are mainly used in regulated DC
power supplies. The block diagram facilitates your selection among a wide
choice of recommended applicable products…. |
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Boost Converter Controls 12 Volt Fan from 5 Volt Supply - 12/12/97
EDN-Design Ideas Temperature-controlled PWM boost converter allows
operation of a12V brushless dc fan from a5V supply.… [Design Idea by John
McNeill, Worcester Polytechnic Institute, Worcester, MA] |
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Bridge head - (circuit diagram added 2/07) |
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Brush DC Motor Drive - The LS7260 series of Brushless DC Motor
Commutator ICs can easily be used to drive Brush DC motors. All the features
for driving Brushless DC motors still apply, including Enable, Speed Control,
Overcurrent Protection and Braking. Figure 1 illustrates a Brush DC motor
driven by a Power FET H-Bridge.... |
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Brush Type DC Motor Drive Apex-AN24 - Apex App Note (added 08/08/08)
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Brushed DC Motor Fundamentals - Microchip Application Note Published
4-Mar-04 (app note added 2/06) |
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Brushless DC BLDC Motor Fundamentals - Microchip Application Note
Published 11-Nov-03 (app note added 2/06) |
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Brushless DC Motor Control Made Easy - Microchip Application Note
Published 12-Sep-02 (app note added 2/06) |
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Brushless DC Motor Control using PIC18FXX31 Mcus - Microchip
Application Note Published 26-Jan-04 (app note added 2/06) |
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Brushless Motor control apparatus having overheat protecting function DRAWING
- Drawing only (United States Patent number 7102314added 10/06)
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Brushless PM Motor Drive - Monolithic full-bridge and half-bridge
gate drivers are available and include protection, dead time and supply
circuits. Bi-directional brush DC motor drive... |
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Buck Converter - (application / block diagram added 6/07)
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Buck-Boost Converter - (application / block diagram added 6/07)
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Build a precision deadband circuit - 20-Feb-03 Issue of EDN
Deadband circuits find applications in servo-control systems. A precision
current source and a half-wave inverting rectifier form a positive deadband
circuit (Figure 1]. The REF01, IC1, is a precision 10V voltage reference. It
forms a precision current source with the addition of a unity-gain buffer
(IC2A] and resistor R1.... [Design Idea by V Manoharan, Kochi, India] |
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Build a UPS for USB devices - 11-Apr-02 Issue of EDN Portable
systems often include circuitry that derives power from an external source,
such as USB. When the system disconnects from the USB supply, a battery takes
over and supplies current via a dc/dc converter. A diode-OR connection (Figure
1] offers the easiest way to ensure that the supply voltage doesn't sag during
this switchover to the battery.... [Design Idea by Mark Cherry and Jean-Claude
Ailloud, Maxim Integrated Products, Sunnyvale, CA, and France] |
