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4 Watt FM Transmitter - This is a small but quite powerful FM
transmitter having three RF stages incorporating an audio preamplifier for better
modulation. t has an output power of 4 Watts and works off 12-18 VDC which makes
it easily portable. It is the ideal project for the beginner who wishes to get
started in the fascinating world of FM broadcasting and wants a good basic circuit
to experiment with..... |
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50 Ohm Long Line Driver - AS029 Jenson Transformer Application Note
(app note 6/07) |
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50 Ohm Long Line Receiver & Driver - AS028 Jenson Transformer
Application Note (app note 6/07) |
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5V power supply teams low dropout regulator, charge pump - 8-Jan-04
Issue of EDN Auxiliary power of 3.3V is replacing the 5V auxiliary power
that "silver boxes" supply in most computer systems, but some circuits still
require a 5V supply. Such systems impose the messy task of creating a central 5V
auxiliary supply from the 3.3V auxiliary supply and then routing 5V power
throughout the motherboard.... [Design Idea by Jim Christensen, Maxim Integrated
Products, Sunnyvale, CA] |
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8 Channel LPT relay board - Channel Relay Board is a simple and
convenient way to interface 8 relays for switching application in your
project…..(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 - This article is about a
software controlled, parallel port-interfacing 8-channel Pulse-Width-Modulated fan
controller….(schematice added 09/09/09) |
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8 x 8 Audio Video Switch - 8 channel switch…. [Peter Jakab, Electrical
Engineer, Engineer of Informatics] |
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80186 Timer Pins Provide General I/O - 08/03/98 EDN-Design Ideas
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,....Mulitple
circuits in this file.... [Design Idea by Sk Shenoy, NPol, Kochi, India] |
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8051SBC V1.0 New generic tool for learning microprocessor - The 8051SBC,
Microprocessor Learning Board. More commands and peripherals. Complete schematic,
PCB layout and firmware are available now.(recommended for applications)
(circuit added 09/09) |
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89C2051 Proto Board - Layout PCB for experimenting with 89C2051 & AVR
uController by M Asim Khan, Pakistan. (circuit added 09/09) |
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89S52 Project Board - Simple 89S52 board for student projects
(circuit added 09/09) |
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8A Regulated Power Supply for 13.8V - BR1 can be a bridge rectifier or
four diodes (10A) with a 100 PIV rating. A 10,000uF/50V electrolytic
capacitor completes the filtering of the 28.8V. Yep, C1 is a real clunker. You can
use larger if you like, just watch it when you power up. Without a 'power-up'
delay circuit of sorts it will probably blow-up the 723 if the capacitor (C1) is
too-large.…. [Tony van Roon's circuit] |
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8k & 16k Microwire EEPROM Enhancements - Microchip Application Note
Published 11-Feb-04 (app note added 06/06/06) |
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9 to 9 Pin Female Null Modem Cable - (schematic / circuit added 10/02)
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9435 PC i Performance Measurements-Concepts & Practical Application -
Agilent Application Note (app note added 6/06) |
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9-Pin PC Serial Port to MIDI Synthesizer Interface Cable - Schematic
only…no description (added 06/06/06) |
