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PC Power Supervisory Circuit with KA3502/ AN-4002 - Fairchild Application
Notes / (app note added 6/06) |
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PC Power Supply Design with KA3511/ AN-4003 - Fairchild Application Notes /
(app note added 6/06) |
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PC printer Port controls frequency divider - 06/09/94 EDN-Design Ideas
[Design Idea added 11/05] EDN is migrating links. This link is not verified.
Google the "title" + EDN for new link. |
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PC Printer Port Controls I V Curve Tracer - Maxim Application Notes / 253 /
Nov-07) (app note added 5/08) |
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PC Programs PROM Simulator - 01/20/94 EDN Design Ideas The circuit in
Fig 1 emulates 8-kbyte PROMs, such as the 2764. The programs in Listings 1 and 2 allow
you to download a PROM program to the emulator via a PC's serial port. …. [Design Idea
by Shwang-Shi Bai, Chang-Shan Institute of Technology, Taiwan, ROC] |
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PC RS422 Interface - Isolated RS422 adapter for PC serial port by M Asim
Khan, Pakistan. (circuit added 09/09) |
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PC RS485 Interface - Simple and easy build RS232C-RS485 converter designed
by M Asim Khan, Pakistan. (circuit added 09/09) |
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PC 's BIOS interrupt drives twin stepper-motors - 09/14/00 EDN-Design
Ideas:A simple and low-cost design achieves a twin stepper drive using a PC's special
BIOS interrupt, INT1Ch, through the PC's parallel port (Figure 1]. Turbo C control
software programs the parallel port for the task of independently running two stepper
motors. Users can write the appropriate control software for the required movement of
two independent....[Design Idea added 11/05] EDN is migrating links. This
link is not verified. Google the "title" + EDN for new link. |
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PC 's IRQ7 & INT1Ch measure currents charges - 10/12/00 EDN-Design Ideas
Figure 1 shows that you can use just two interrupts (IRQ7 and INT1Ch] of a PC and a
few inexpensive components to make simultaneous measurements of two electrical
quantities. Two examples are low currents and their associated charges, parameters
important in ion implanters….PDF contains multiple circuits - scroll to find this
circuit....[Design Idea added 7/03] -- [K Suresh, IGCAR, Tamil Nadu, India] EDN is
migrating links. This link is not verified. Search the "title" + EDN for new
link. |
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PC 's parallel Port & a PLD host multiple stepper-motors & switches -
2/16/06 EDN Design Ideas Well-suited for robotics applications requiring motion
in several direction. (added 10/06] EDN is migrating links.
This link is not verified. Search the "title" + EDN for new link. |
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PC 's RF stage design: tackling the trade offs - 11/21/96 EDN-Design Feature
Building Effective RF design requires that you carefully manage trade-offs. You'll
have to accept less-than-optimum performance in some dimensions to achieve your
primary objectives.… [Design Feature by Bill Schweber, Technical EDFtor] |
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PC 's Serial Port Controls Programmable Sine Wave Generator - 01-Oct-06 EDN
Europe This Design Idea describes a circuit that uses a PC’s serial port to control a
sine-wave generator that covers a frequency range of 2 Hz to 20 kHz in 1-Hz steps
(Figure 1]. The circuit’s output voltage of approximately 2.2V p-p remains.... [Design
Idea by Yongping Xia, Navcom Technology, Torrance, California] |
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PC securely controls relay - 11/23/95 EDN-Design Ideas When a
PC-driven solid-state or electromechanical relay controls external equipment, take
care to design an interface that avoids false triggering. The interface circuit in
Figure 1a switches the relay on and off only after a specific sequence of outputs.
Thus, this design protects the relay against the influence of computer-reset and I/O
operations that some drivers perform during system start-up to locate add-on cards....
[Design Idea by Jerzy R Chrzaszcz, Institute of Computer Science, Warsaw University of
Technology Warsaw, Poland |
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PC Serial & Parallel Port Software & Interfaces - (electronic circuit added
4/05) |
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PC Serial Port Drives 12 Bit A/ D Converter - Maxim Application Notes / 151 /
Dec-07) (app note added 5/08) |
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PC Serial Port Receiver - (design circuit added 8/02) |
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PC Smartcard Reader - (design circuit added 8/02) |
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PC SMPS Secondary Side Control IC/ AN-4115 - Fairchild Application Notes /
(app note added 6/06) |
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PC Thermometer - This incredibly simple thermometer plugs on any free serial
port. Does not make use of any programmable components as microcontrollers. It gives
temperature readings accurate to 0.5°C with no calibration. It's cheap, so I've put
one on any PC I use. And it is so nice to have the temperature shown on the Windows
taskbar, that a million friends asked me to build one….[Site is under construction
right now] |
