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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 Tricks for Interfacing to the PIC16c508 - (electronic circuit added
7/03) |
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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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100 MHz Clock Solution for Desktop Computers - Pericom Semiconductor
Application Brief # 021 (app note added 2/05) |
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10mbps Multiple Protocol Serial Chip Set: Net1 & Net 2 Compliance By Design -
DN174 Design Notes (Linear Technology) (app note added 1/06) |
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12 DB Amplifier & High Current Line Driver with DC Servo - AS024 Jenson
Transformer Application Note (app note 6/07) |
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17 Bit PC Serial Port Receiver CMOS - (electronic diagram added 6/06)
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18-bit ADC uses PC's serial port - 09/27/01 EDN-Design Ideas A PC
usually requires a plug-in ADC card to process analog signals. However, with the
circuitry in Figure 1, a PC can communicate with an 18-bit ADC through its serial
port. The port provides both positive and negative power supplies as well as
control signals. IC1 is an 18-bit MAX132 ADC with a serial interface. It requires
three input control signals, , DIN, and SCLK, and emits serial data, DOUT....
[Design Idea by Yongping Xia, Teldata, Los Angeles, CA] |
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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. ….(Circuit design
added 11/08) |
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18F4550 USB Proto Board - 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....(design
added 06/06/06) |
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1k, 2k & 4k Microwire EEPROM Migration - Microchip Application Note
Published 6-Apr-04 (app note added 2/06) |
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2 Channel Port Powered RS-232 to RS422 Converter - information on
commercial product, datasheet includes full circuit diagram (added
4/02) |
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2 transistor circuit replaces IC - 7-Feb-02 Issue of 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 the IC must
work bidirectionally, meaning that you can simultaneously and actively drive both
sides. However, as is sometimes the case, you can replace a complicated circuit by
a simple one without much loss of performance.... [Design Idea by Jim Hagerman,
Hagerman Technology, Honolulu, HI] |
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2 Transistor Circuit replaces IC (Hagtech) - I am always impressed with
the way semiconductor manufacturers go out of their way to make the end designer’s
job easier. One example is the LTC4300 recently introduced by Linear Technology….
[Jim Haggerman, Hagerman Technology LLC] |
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2 Transistors Form Bidirectional Level Translator - You often need to
convert a logic signal from one power supply voltage to another. This
conversion is a relatively simple task, unless the signal happens to be
bi-directional. Serial buses such as Access.bus, I2C, and SBI use bi-directional
data lines. Some buses may require translating logic from one voltage to another;
for example....[Jim Hagerman, Nokia Mobile Phones, San Diego, CA] [Jim Haggerman,
Hagerman Technology LLC] |
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2 Wire Communication Using Labview - Maxim Application Notes / 1190 /
Jun-03 (app note added 5/08) |
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2 Wire LCD Interface using PIC16cf84 - (circuit / schematic design added
6/06) |
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2.5 Mb/s Isolated RS485 Communication Interface with up to 500 mW Supplementary
Power - Application Note California Eastern Laboratories Doc #961
(app note added 06/06/06) |
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20 dB Amplifier & High Current Balanced Line Driver - AS023 Jenson
Transformer Application Note (app note 8/08) |
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200 Watt Modified PC Power Supply 13.5 Volt 14 Amp - (electronic circuit
added 4/05) [OZ2CPU; Thomas from Denmark] |
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24 bit ISA card - Installs into your computer. Parts, plans, schematics
and programmng available. Also may be purchased as a kit. (added 6/05)
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24 Bit Parallel Port Interface with 8255 for Commodore Computer - High
Quality simple unit. No need for a Preamplifier… [Peter Jakab, Electrical
Engineer, Engineer of Informatics] |
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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… [Peter Jakab, Electrical
Engineer, Engineer of Informatics] |
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25 Watt MOSFET Amplifier - High Quality simple unit. No need for a
Preamplifier (added 9/04) |
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25-Pin PC Serial Port to MIDI Synthesizer Interface Cable - (application
/ block diagram added 6/07) |
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27C801 EPROM Programmer Project - (circuit / schematic design added
6/06) |
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27mhz Optical Mouse - (application / block diagram added 6/07)
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27mhz USB Dongle - (application / block diagram added 6/07) |
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2-Input Mixer - 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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2m-20m Transverter - This little circuit is a transmitting and receiving
converter (transverter) that converts a FT290 or similar multimode handheld
transciever to the 14MHz amateur band. The project is a single board module that
needs an external local oscillator, for example, the VHF harmonic oscillator (or
QRP VHF FM TX) LO for transverter project. It should be a relatively simple matter
of scaling coils.... [from Harry Lythall's website] |
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2-Wire LCD Interface using PIC16cf84 - 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" and easy to use. I like to use LCD's to help debug applications,
with breakpoints set to display variable and I/O conditions and y are a lot
cheaper than using a microcontroller emulator. To top it off, surplus LCD's can be
found for a dollar or less.... (added 4/05) |
