CompuPhase articles and Application notes
CompuPhase Services include contract programming of applications and embedded systems, and also the design and production of custom electronics. CompuPhase Projects and Programmable MP3-player Domains of Expertise Signal processing (audioRead More
BD139 and BD140 Complementary transistor
This pair is my favorite when driving small solenoids or motors. SOT-32 and 12 Watts on Heatsink. This means any small solenoid, relay or DC motor can be controlled withRead More
National Semiconductor – Texas Instrurments
National Semiconductor was an American semiconductor manufacturer, that specialized in analog devices and subsystems, formerly headquartered in Santa Clara, California, USA. The products of National Semiconductor included power management circuits,Read More
Instrumentation and Automation – 01
Here are some Test and measurement notes. These ideas come from practical experience. But the jots are not in any order but are quite important. Scope Notes If the waveformRead More
Test Measurement and Test jigs
Test Tools are needed for Troubleshooting and Repairing Electronic Gadgets, Equipment, Electrical Panels and Machines. Precision Instruments are required for calibration of field and machine control electronics. These are alsoRead More
Oscilloscopes in Test Measurement
The usefulness of an oscilloscope is not limited to the world of electronics. With the proper transducer, an oscilloscope can measure all kinds of phenomena. Type 465 Tektronix oscilloscope. ThisRead More
Product Development Fundamentals
A. Product Design Sections : Electronic Engineering – Circuit Design, PCB Design, EDA. Mechanical Engineering – CAD, Tool and Die Design, Enclosure Software Engineering Firmware – PC ware, CASE, emulatorsRead More
Product Design Precautions
When you design a new Product or Engineer an existing one; communications and documentation is important. Creating a satisfying solution is the main thing. If requirements and specs or notRead More