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Use printer port as programmable frequency generator - 11-Oct-01
Issue of EDN A simple and inexpensive circuit (Figure 1] and a
simple C program (Listing 1] are all you need to turn your PC's printer
port into a programmable frequency generator. Using a few low-cost and
readily available components, the circuit occupies little space and is
easily attachable to the printer port.... [Design Idea by K Kanniappan,
IGCAR, Tamil Nadu, India] |
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Use time domain analysis of Zobel network - 27-Jun-02 Issue of
EDN A Zobel network is useful in making a reactive load appear as a
pure resistance to a driving source prone to stability problems (Reference
1]. A typical situation is an audio power amplifier driving a loudspeaker,
modeled at first approximation as an inductance and a series resistor
(Figure 1a]. The addition of a series R2C network in parallel with the
series R1L network forms a Zobel network.... [Design Idea by Noël Boutin,
Université de Sherbrooke, PQ, Canada] |
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Use two picogate devices for bidirectional level shifting -
11-Nov-04 Issue of EDN In new mixed-voltage systems, it is often
necessary to level-shift a control signal from a high level to a low
level. An open-drain device, such as the 74LVC1G07, easily performs this
shift. However, when a bidirectional signal requires level-shifting, it
takes a bitcircuitry, because simply tying two open-drain devices pins
together generates just a latch function.... [Design Idea by Bob Marshall,
Philips Semiconductors] |
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[ad-DAJ-FS-split.htm]
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Useless Masked µCS Make Useful PC Peripherals - 06/18/98 EDN-Design Ideas
A software bug or a new code revision can often render hundreds of masked µCs all but
useless for production purposes. However, by tapping into the 68HC11's bootstrap mode,
you can attach these µCs to a PC's RS-232C serial port and put them to work. In the
MC68HC11E9, 512 bytes of RAM are available....File contains several Design Ideas,
scroll to this one....[Alec Bath, Motorola Inc, Northbrook, IL]
[Design Idea by Alec Bath, Motorola Inc, Northbrook, IL] |
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User Guide for Pi7c21p100 Reference Board - Pericom Semiconductor
Application Note # 07)4 (app note added 02/05) |
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User Guide for PI7C8148 Reference Board - Pericom Semiconductor Application
Note # 07)4 (app note added 02/05) |
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User Guide for the Pericom PI7C8150 Reference Board - Pericom Semiconductor
Application Note # 053 (app note added 02/05) |
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User Guide for the Pericom PI7C8154 Reference Board - Pericom Semiconductor
Application Note # 064 (app note added 02/05) |
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Using a PC with a DS3900 to Communicate with DS1267s, DS1867s, & DS1868s -
Maxim Application Notes / 1172 / Feb-10 (app note added 5/08) |
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Using Easy-Downloader V1.1&V2.0 with Unsorted HEX Files - Kurnia Wijaya from
Jakarta Indonesia helps me writing the program that sorts the intel hex file generated
by some compilers. |
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Using KEELOQ to Validate Subsystem Compatibility - Microchip Application
Note Published 13-Feb-02 (app note added 6/06) |
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Using Other Voltages with the FAN5063/ AB-26 - Fairchild Application Notes /
(app note added 6/06) |
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Using PI7AT04 Active Terminator over Classical MethoDS of Termination -
Pericom Semiconductor Application Note # 046 (app note added 02/05) |
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Using PIC16C5x as a Smart IIC Peripheral - Microchip Application Note
Published 26-Aug-97 (app note added 2/06) |
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Using the 24lc21 Dual Mode Serial EEPROM - Microchip Application Note
Published 22-Nov-99 (app note added 2/06) |
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Using the 8-Bit Parallel Slave Port - Microchip Application Note Published
22-Nov-99 (app note added 06/06/06) |
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Using the ADT7461 as a Multichannel Temperature Sensor - AN-702 Analog
Devices Application Note (app note added 7/06) |
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Using the C18 Compiler & the MSSP to Interface I2Cs EEPROMs with PIC18 Devices -
Microchip Application Note Published 24-May-05 (app note added 06/06/06)
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Using the C18 Compiler & the MSSP to Interface Microwire EEPROMs with PIC18 Devices.
- Microchip Application Note Published 16-Jan-06 (app note added 06/06/06)
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