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Circuit for measuring motor speed uses low-cost components -
8-Nov-07 Issue of EDN A microcontroller-based circuit provides both an
LCD readout and an analog motor-speed output....[Design Idea by R García-Gil,
J Castelló, and JM Espí, Escola Tècnica Superior d’Enginyeria, University of
Valencia, Spain] |
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Circuit for Soft-Start Module - Simple circuit that reduces surge
current on start of an induction motor. ….(electronic schematic added
06/09) |
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Circuit Monitor 2 - This is a circuit monitoring device. It runs
for over 10 days and can log up to 32k events both digital and analog.
Samples are logged either on a timing basis (.01 to 2.5 seconds), or on a
triggered basis. Four inputs are provided, up to three of which can be
analog....[Luhan Monat - Mesa Arizona] |
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Circuit programs Atmel AVR µCs - 30-Mar-00 Issue of EDN
Atmel AVR mCs feature an enhanced RISC architecture that purportedly offer
the highest MIPS-per-milliwatt capability in the 8-bit mC market. Figure 1
shows an easy-to-build ...[Design Idea by Guo-Yin Xu, XuMicro, Houston, TX] |
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Circuit Programs Atmel AVR microControllers - 03/30/00 EDN-Design Ideas EDN
is migrating links. This link is not verified. Search the "title" + "EDN" for
new link. |
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Circuit provides 4 to 20 mA loop for microcontrollers - 27-May-04
Issue of EDN The 4- to 20-mA current loop is ubiquitous in the world of controls
in manufacturing plants. Discrete logic, microprocessors, and microcontrollers easily
cover the digital portions of control schemes, such as limit switches, pushbuttons,
and signal lights. Interfacing a 4- to 20-mA output to a rudimentary microcontroller
can be problematic....[Design Idea by Robert Most, Dow Corning Corp, Auburn, MI] |
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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Circuit provides watchdog for microcontrollers - 26-Dec-02 Issue of EDN
The watchdog circuit in Figure 1 uses a single NAND Schmitt-trigger IC. The circuit
iscost-effective than dedicated, commercially available watchdog ICs. The circuit
generates an active-high reset signal upon power-up and remains in a low state as long
as the control input receives pulses. Whenever the pulsing at the control input stops,
whether the circuit is in a high or a low state, th....[Design Idea by VM Holla,
Bangalore, India] |
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Circuit translates A law to m law - 05/07/98 EDN-Design Ideas....Two common
methods exist to compand voice for transmission through a PCM channel. In Europe, A
law involves converting a 12-bit input signal to an 8-bit encoded output. In the US, m
law involves encoding 13 bits to 8 bits. You can use a translator to convert from A
law to m law....NOTE Page includes several designs, scroll to find this
one....[Design Idea by Rolando Herrero, Instituto Tecnol�gico de Buenos Aires,
Argentina] |
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CLC to LMH Conversion Table - National Semiconductor Application Note
(app note added 2/06) |
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CLC018EB CLC018 Evaluation Board - National Semiconductor Application Note
(app note added 2/06) |
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CLC034 PCB Layout Techniques - National Semiconductor Application Note
(app note added 2/06) |
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CLC561EB Evaluation Board - National Semiconductor Application Note
(app note added 2/06) |
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CLC5902 Diversity Receiver Chipset - National Semiconductor Application Note
(app note added 2/06) |
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CLC5956 Diversity Receiver Chipset - National Semiconductor Application Note
(app note added 2/06) |
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CLC730061EB Active Filter Evaluation Board - National Semiconductor
Application Note (app note added 2/06) |
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Clearing the Software Write-Protect Feature on the 24LCS52 - Microchip
Application Note Published 23-Feb-04 (app note added 2/06) |
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Clock - Scroll down to find link to circuit drawing and circuit
explanation….(electronic design added 09/06) |
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Clock Controller V1.1 - The Clock V1.1 provides the same function as the
saver does but with additional 4-digit LED display and 4-key input for setting the
clock and turn on/off AC load. The circuit uses single 2051 chip, and relay or opto-triac
output for driving AC load. ….(Circuit design added 06/09) |
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Clock Design using the PIC16c54 for LED Displays & Switch Inputs - Microchip
Application Note Published 26-Aug-97 (app note added 2/06) |
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Closed-Caption Decoder - This is a closed-caption decoder with serial output
based on a Microchip PIC16F628A. The internal comparators of the PIC16F628A are used
to implement a peak detector and data slicer....[The hardware was designed by Richard
Ottosen, and the firmware was written by Eric Smith] |
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