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µC Based Circuit Performs Frequency Multiplication - 05/27/99 EDN-Design Ideas /
(added 11/05) |
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µP Socket Automatic Ally Senses Upgrade - 03/03/03/94 EDN Design Ideas / (added
11/05) |
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0 To 10 Volt Analog Control Protocol - (circuit / schematic design added 6/06) |
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1 Second Time Base From Crystal Oscillator - The schematic above illustrates
dividing a crystal oscillator signal by the crystal frequency to obtain an accurate
(0.01%) 1 second time base. Two cascaded 12 stage counters (CD4040) form a 24 stage
binary counter and the appropriate bits are gated together to produce the desired
division. Using a crystal of some even multiple of 2 is desirable so that one stage of
the counter automatically toggles every second which eliminates the need for the NAND
gate and reset circuitry, however the circuit below illustrates using a crystal which
is not an even multiple of 2 and so requires additional...(electronic circuit added
6/07) |
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10 Base T Solutions Network Interface Adapter - National Semiconductor Application
Notes,28 Jun1996 / (app note added 5/02) |
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10 Hints For Making Better Network Analyzer Measurements - Aligent Application
Note (app note added 6/07) |
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10 Watt Multiple Output Isolated Power Supply - This design kit is an isolated
converter (EP-18) for a High Speed Digital Modem application. (added 3/05) |
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101 Mhz Clock Solution For Desktop Computers - Pericom Semiconductor Application
Brief # 021 (app note added 2/05) |
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10base-T Solutions: Network Interface Adapter - National Semiconductor Application
Note (app note added 2/06) |
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10mbps Multiple Protocol Serial Chip Set: Net1 And Net 2 Compliance By Design -
DN174 Design Notes (Linear Technology) (app note added 1/06) |
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17 Bit PC Serial Port Receiver Cmos - 09/27/01 EDN Design Ideas / (added 6/06)
A PC usually requires a plug-in ADC card to process analog signals. However, with
circuitry in Figure 1, a PC can communicate with an 18-bit ADC through its serial
port. port provides both positive and negative power.... |
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18 Bit Adc Uses Pc's Serial Port - This article contains information about getting
a USB interface working between an 18F4550 PIC and a PC using C# .NET 2.0, using the
Microchip-supplied driver mpUSB api.dll. In this article, the PIC is configured using
some (slightly modified) demo code originally for the PICDEM FS USB demo board, in
which it is configured as a generic class device, with one IN + OUT interrupt
endpoint. The device is set up with a bootloader, allowing the PIC to be programmed
through software after the initial programming. ….(design added 11/08) |
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18f4550 USB Interface - This board is a Microchip PIC prototyping board for the
18F4550 microcontroller using USB . It is designed to have the PIC loaded with a USB
bootloader and then a separate programmer is no longer needed. The board has all the
circuitry needed for a successful USB interface. Free I/O pins have 1-3 solder pads
for easy connection for prototyping. This board is based on the one I use for all my
own USB experimentation, and is compatible with the firmware and software in my
18F4550 USB Interface article, my PIC USB Bootloader article, and others. It should
also work fine for other PIC USB interfacing projects, such as HID or CDC (virtual COM
port) applications. ….(circuit design added 11/08) |
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18f4550 USB Proto Board - Fairchild Application Notes / (app note added 6/06) |
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1a, 3.3v Converter With High Efficiency And Small Footprint / Ab-23 - Microchip
Application Note Published 6-Apr-04 (app note added 2/06) |
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1k, 2k And 4k Microwire Eeprom Migration - information on commercial product,
datasheet includes full circuit diagram (added 4/02) |
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2-transistor circuit replaces IC - 05/(07/02 EDN-Design Ideas / (added
4/02) -Jim Hagerman's article Linear Technologies recently introduced LTC4300
chip buffers I2C clock and data lines to and from a hot-swappable card. This task is
difficult because IC must work bidirectionally. |
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2 Transistor Circuit Replaces Ic (Edn) - Linear Technology's recently introduced
LTC4300 chip buffers I2C clock and data lines to and from a hot-swappable card. This
task is difficult because IC must work bidirectionally (added 08/05) |
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2 Transistor Circuit Replaces Ic (Hagtech) - Maxim Application Notes / 1190 /
Jun-03 (app note added 5/08) |
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2 Wire Communication Using Labview - (circuit / schematic design added 6/06) |
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2 Wire Lcd Interface Using Pic16cf84 - Application Note California Eastern
Laboratories Doc #961 (app note added 6/06) |
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2.5 Mb/S Isolated Rs485 Communication Interface With Up To 500 Mw Supplementary Power
- (electronic circuit added 4/05) |
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200 Watt Modified PC Power Supply 13.5 Volt 14 Amp - (circuit added 9/04) |
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24 Bit Parallel Port Interface With 8255 For Commodore Computer - (electronic
circuit added 7/03) |
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24 Line Parallel Interface For The PC - it is what it says it is. (circuit
added 05/09) |
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24-Bit Parallel Port Interface With 8255 For Commodore Computer - High Quality
simple unit. No need for a Preamplifier (added 9/04) |
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25 Watt Mosfet Audio Amplifier - (electronic circuit added 4/05) |
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25-Pin PC Serial Port To Midi Synthesizer Interface Cable - (application / block
diagram added 6/07) |
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27mhz Optical Mouse - (application / block diagram added 6/07) |
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27mhz USB Dongle - As simple as it gets. mixer consists of two
transistor-based preAmplifiers. first one (designated "Mike in") offers higher
gain. it works well with a regular dynamic microphone. second one can be used to
control audio input from a tape recorder/CD player. (added 6/06) |
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2-Input Mixer - (circuit / schematic design added 6/06) |
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2m 20m Transverter - Alphanumeric LCD displays have become very
popular for microcontroller applications because y can add a lot to a project in a
variety of different ways. A text message giving user instructions as well as
feedback can make application seem much more "professional" .... (added 4/05) |
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2-Wire Lcd Interface Using Pic16cf84 - (electronic circuit added 11/05) |
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32 Bit Serial Receiver 57.6 K Baud Ttl And Cmos - This is the schematic for an FM
transmitter with 3 to 3.5 W output power that can be used between 90 and 110 MHz.
Although the stability isn't so bad, a PLL can be used on this circuit. (electronic
design added 6/07) |
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3-3.5 Watt Fm Transmitter - This is one of the simplest circuit for a PC parallel
port based DLA. The Circuit is mainly used to protect the port which is fabricated on
the motherboard itself. The IC 74LS04 is an inverter and acts as a buffer. The
Zener is used for undervoltage and overvoltage protection. If a voltage > 5V appears
on the input,....(electronic design added 09/08) |
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4 Ch Digital Logic Analyzer And 5 Ch Digital Oscilloscope In Parallel Port -
(circuit added 7/02) |
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4 Channel 8 Bit Analog-To-Digital Converter For PC - Pericom Semiconductor App
Note # 064 (app note added 02/05) |
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4 Port Fibre Channel Host Bus Adapter HBA Design - Pericom App Note #83 (added
1/05) |
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5v Power Supply Teams Low Dropout Regulator Charge Pump - It is very interesting
and convenient to be able to control everything while sitting at your PC terminal.
Here, a simple hardware circuit and software is used to interface a 7-segment based
rolling display. The printer port of a PC provides a set . (added 10/05) |
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7 Segment Rolling Display Using PC - Channel Relay Board is a simple and
convenient way to interface 8 relays for switching application in your
project…..(electronic design idea added 09/08) |
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8 Channel Lpt Relay Board - (schematic / circuit added 6/07) |
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8 Channel Pwm Code Avr Controllers - This article is about a software controlled,
parallel port-interfacing 8-channel Pulse-Width-Modulated fan controller.….(circuit
design added 09/08) |
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8 Channel Software Controlled Fanbus with PWM - 08/03/98 EDN-Design Ideas /
(added 11/05) Intel's (www.intel.com) 80186 is a highly integrated mP common in
embedded applications. It combines 15 to 20 common iAPX86 system components, such as a
DMA controller, an interrupt controller, timers, a clock generator, a bus interface,
and chip-select logic on one chip. Unfortunately, unlike many mCs, it provides.... |
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80186 Timer Pins Provide General I/O - (electronic circuit added 4/05) |
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8051 Sbc Single Board Computer - Microchip Application Note Published 11-Feb-04
(app note added 2/06) |
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8k And 16k Microwire Eeprom Enhancements - (schematic / circuit added 10/02) |
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9 To 9 Pin Female Null Modem Cable - Agilent Application Note (app
note added 6/06) |
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9435 Pci Performance Measurements - Concepts And Practical Application - (circuit
/ schematic design added 6/06) |
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9-Pin PC Serial Port To Midi Synthesizer Interface Cable - Fairchild Application
Notes / (app note added 6/06) |
