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[ad-DAJ-FS-split.htm] |
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Drawing Power From a PC Serial Port - This circuits derives
fairly low power, (mA at5V) from a RS-232 serial connection. (NOTE: ASCIII
drawing) (added 4/02) |
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Dreamcast Interface - A simple circuit to connect the Dreamcast
console to PC. No MAXxxx IC required. Only a few discrete components.
This circuit is a direct replica of the daVinci cradle schematic….(circuit
added 04/05/06) |
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Driving a Relay with a CPU - ASCII format (added 7/02)
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DS1620 Based USB Digital Thermometer - I connected a DS1620
digital thermo-censor by Dallas Semiconductor to the Morphy Planning's
USB-IO to build a PC-accessible digital thermometer. The DS1620 chip
supports 3-wire (SPI) protocol and allows loose timing, so you can
easily.… |
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DS1621 PC Thermometer - This incredibly simple thermometer plugs
on any free serial port. Does not make use of any programmable components
as microcontrollers.…. |
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DS3662 The Bus Optimizer - National Semiconductor Application
Note (app note added 2/06) |
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DSP Chip Connects to ADC over Serial Port - 02/01/96 EDN-Design Ideas /
(added 6/06] EDN is migrating links. This link is not verified.
Google the "title" + EDN for new link. |
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DTMF Dialer Coding Table - A truth table for NS TP5088 DTMF tone dialer.
(circuit added 09/09) |
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Dual Fan Controller - Each fan turns off when the temperature drops 5
degrees below its turn-on temperature. For example, if the dial is set to 80 degrees,
the fan turns on at 80 degrees and turns off at 75 degrees. This prevents the
fan from cycling on and off rapidly, which would occur if the fan turned on at 80,
started to cool the cabinet, and then immediately turned off at 79. ….(design added
11/08) |
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Dual LCD Backlight Inverter Drive IC/ AN-4136 - Fairchild Application Notes
/ (app note added 6/06) |
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Dual Regulators Power Pentium® Processor or Upgrade CPU - DN122 Design
Notes (Linear Technology) (app note added 2/06) |
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Dual-Phase High Efficiency Mobile CPU Power Supply Minimizes Size & Thermal Stress
- DN247 Design Notes (Linear Technology) (app note added 1/06)
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| Dual-voltage regulator meets USB-power
needs - 19-Aug-04 Issue of EDN This Design Idea stems from the limited
availability of IC voltage regulators that can meet key USB-power specs, coupled with
the need for turn-on sequencing and rise-time control at each output. As always, for
PC-related designs, minimum cost is a primary motivation. USB specs require all loads
to limit inrush current to less than 100 mA plus 50 µC of charge when powered on....
[Design Idea by Wayne Rewinkel, National Semiconductor, Phoenix, AZ] |
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Dynamic Memory Allocation for the Mplab® C18 C Compiler - Microchip
Application Note Published 3-Mar-04 (app note added 2/06) |
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Dynamic siphon steals current from USB port - 15-Dec-06 Issue of EDN
Make maximum use of a USB port's current-delivery capability.... [Design Idea by
Donald Schelle, Maxim Integrated Products Inc, Sunnyvale, CA; Edited by Brad Thompson
and Fran Granville] |
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Easy Debugging Terminal - This LCD terminal provide two modes of operation
by selecting jumper J1. When J1 is open the terminal operate as a normal ascii display
terminal, when J1 is closed the terminal displays the input serial data in hexadecimal
format. This mode is useful for viewing raw data from the serial port
output....(added 7/03) |
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Easy-Downloader V1.1 - Serial interface programmer board for writing intel
HEX file to the AT89C2051/4051 flash based microcontroller. New EZ Uploader V3.0 for
Window and PCB file are included. (circuit added 09/09) |
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Easy-Downloader V1.1 with SDCC - Renovated programmer board with SDCC,
complete schematic and layout with MAX232 for rs232 level converter! (circuit
added 09/09) |
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Easy-Downloader V2.0 - The simple programmer for 40-pin AT89C51/52/55.
Modified firmware for free compiler 8051, sdcc. Beta version for 89S51 and 89S52, a
bit hardware modification. (circuit added 09/09) |
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Easy-Downloader V2.1 - Simple modification of Easy programmer V2.0 enables
the 89C55WD to be programmed. The beta version of EZ55.HEX and source code EZ55.C are
available for download. (circuit added 09/09) |
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Easy-Downloader V3.0 - New design the flash programmer board specially for
89C55WD. The lock and erase functions are now implemented and tested.(not recommended)
(circuit added 09/09) |
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EE-139: Interfacing the ADSP-2191 to an AD7476 via the SPI Port - EE-139
Analog Devices Application Notes (app note added 6/06) |
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EE-162 Software Code - EE-162 SoftwareCode-Analog Device Application Notes
(app note added 6/06) |
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EE-236 Software Code - EE-236 Analog Devices Application Notes (app
note added 2/06) |
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EE-246 Software Code - EE-246 Analog Devices Application Notes (app
note added 2/06) |
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EE-247 Software Code - EE-247 Analog Devices Application Notes (app
note added 2/06) |
