Engineering, Technologies, Instrumentation and Automation.
Wenzel Associates Technical Library
Time and Frequency Circuits and Articles including frequency synthesis and conversion.
Crystal Oscillator Tutorial Articles cover oscillator types, terminology, and selection.
Spreadsheets/ Programs to calculate pll response, phase noise under vibration, and others.
Techlib.com Hobby circuits and other information.
World’s Smallest Geiger Counter
Karen’s Electrometer
Selected Reprints (courtesy of RF Design magazine.)
1. Has Transformer been soldered properly with reinforced pads. Scrape with blade area around pad and make lead bridges to support transformer. Front Card and Rear Card must have very thick solder bridges after fixing sq. post.
2. Is the Front and back stickers and SL. No Sticker properly stuck. In Front Sticker the holes [...]
This is an Application note i used to give with my ssr - app011.pdf - Ananth
SSR or Solid State Relay or Electronic Relay This is a Thyristor Based Normally Open 230V Switch that can be turned on / off at a fast rate. This switches at Zero Crossover .Built In Snubber reduces EMI and [...]
AirBorn Electronics Circuit Design
“AirBorn Electronics provides custom designed electronic circuitry. These pages are a How-to guide for electronic design … useful to inventors, designers, electronic engineers… anyone doing electronic research and development or gathering ideas for a new electronic product.”
Circuit Design Library
Design Services
AirBorn Electronics Circuit Design Library
Hseti PCB - AT89C2051 serial COMs to LED driver
A [...]
This is an Application note i used to give with my controllers - app009.pdf - Ananth
Temperature Control in Plastic Injection Molding.
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Terms in Process Control and Explanation.
There are three Controls to be Adjusted to make a Proportional temperature Controller Perform Properly. This method has to be practiced and experience gained from it can [...]
Feedback and Temperature Control System Model, Types of Feedback Control, On-Off Control, Proportional+Derivative Control, Proportional+Integral+Derivative Control, Proportional+Integral Control, Third-Order Systems..
Computer Interfaces for Instrumentation Systems
Introduction to Sensors
Troubleshooting Op-Amp Circuits
Professor Mark Cseles Projects and Hobbies All Projects employ microcontroller-based controls using the PIC series from Microchip.
Nixie Thermostat
A heating and cooling thermostat employing technologies spanning fourty years from the unique Nixie tube display, circa 1960’s, to a PIC 18F microcontroller, circa 2006.
dsPIC-Based IR Controller
An example project using a dsPIC30F2010 Digital Signal Controller chip. The [...]