Monday, December 25, 2006

Wenzel Associates Technical Library

Wenzel Associates Technical Library


Saturday, December 09, 2006

SB-Projects - San Bergmans

A collection of information on a variety of topics. Finished projects, Some ideas, Repair tips.by San Bergmans, Oisterwijk, The Netherlands.

The Dice Game on 6802 Nano computer

SB-Projects - San Bergmans

A pair of dice is the first small example application I present here. The interface is nothing more than 2 sets of 7 LED's, arranged in the form of two dice. One push button per die completes the interface circuit

The Dice Game on 6802 Nano computer.

Tuesday, December 05, 2006

Wide-Bandwidth Dual JFET Opamp LF353

These devices are low cost, high speed, dual JFET input operational amplifiers with an internally trimmed input offset voltage.

They require low supply current yet maintain a large gain bandwidth product and fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents.

Wide-Bandwidth Dual JFET Opamp LF353

LF353 - Wide Bandwidth Dual JFET Input Operational Amplifier

Some Highlights
  • Gain Bandwidth 4 MHz
  • Slew Rate 13 Volts/usec
  • Offset Voltage 10 mV
  • Low Input Bias Current: 50pA
  • High Input Impedance: 1 Tera Ohms

Monday, November 27, 2006

Elektronik und Mikrocontroller

Elektronik und Mikrocontroller Elektronik und Mikrocontroller

Programme, Informationen und Literatur zum Bereich Elektronik und Mikrocontroller.

Author of books and CDs, Microcontroller, interface programming or new ideas for hobby projects. High frequency, Transistor technology, Electron tubes, Control engineering, Electronic construction units, Measuring technique.

Franzis-Lernpaket

Tuesday, November 14, 2006

CD4093BC Quad NAND Schmitt Trigger

The CD4093B consists of four Schmitt-trigger circuits. Each circuit functions as a 2-input NAND gate with Schmitt-trigger action on both inputs. The gate switches at different points for positive and negative-going signals.

CD4093 - Quad 2-Input NAND Schmitt Trigger

The difference be-tween the positive (VTa) and the negative voltage (VTb)isdefined as hysteresis voltage (VH). All outputs have equal source and sink currents and con-form to standard B-series output drive.

CD4093BC Quad NAND Schmitt Trigger

CD4093 is a very useful chip, as it has a Schmitt-trigger and it is a nand, cmos, low power. It can be even made to function like an amp in some configurations. It was used in debouncing circuits, oscillator circuits and input signal conditioning of digital circuits.

DMM range and AC-DC mode Logic

If you had a train of square pulses from a magnetic sensor or proximity sensor. You could use this as a monostable or singleshot to reject noise and get a clean square wave from a messy input.

Tuesday, October 10, 2006

Feedback and Temperature Control

Excellent Online Educational Pages at Exeter. Students and Teachers can get ideas on how to enhance and enrich the Science Education Process.

e-Learning Resources - Physics at Exeter

A Sound understanding of Physics and Chemistry is needed for stepping into “Electricity and Magnetism”. We have to move young minds into Electronics even before High School, as a part of Science itself.

e-Learning Resources – Physics at Exeter
  • Practical Electronics II and Electronics for Measurement Systems
  • Feedback and Temperature Control
  • Computer Interfaces for Instrumentation Systems
  • Troubleshooting Op-Amp Circuits
Troubleshooting Op-Amp Circuits

The ability to diagnose and cure problems in a systematic manner is an exceptionally valuable skill. In PHY2028 students are given a heap of components, a breadboard, and measuring equipment.

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..