Monday, April 22, 2019

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

Wednesday, April 03, 2019

ASQ - Resources for the Quality Professional

ASQ was born in the days when "quality control" usually meant ensuring that manufactured products were free of defects....ASQ organizational membership provides the invaluable resources you need to concentrate on product, service and experiential quality and continuous improvement for powerful top-line and bottom-line results.

ASQ - Resources for the Quality Professional

ASQ’s Emerging Quality Leaders Program is specifically designed to develop the leadership skills of quality professionals. The International Team Excellence Award program is designed to award achievements in improved performance in businesses of all sizes.

ASQ - Resources for the Quality Professional

The last decade has brought many changes to Iredell-Statesville Schools (I-SS) in North Carolina. In 2002, the district embarked on its journey to continuous improvement by using the Baldrige Criteria for Performance Excellence.

Tuesday, April 02, 2019

DC to AC Pure Sine Wave Inverter

Here are project reports on how to manage the various design needs of a inverter for a power ups. Even Solar Energy systems need inverters to create AC Sine Wave Power Supply from a DC Battery Array.

DC to AC Pure Sine Wave Inverter

Creating a Efficient and Inexpensive Inverter - By Jim Doucet, Dan Eggleston, Jeremy Shaw

This report focuses on DC to AC power inverters, which aim to efficiently transform a DC power source to a high voltage AC source, similar to power that would be available at an electrical wall outlet. Inverters are used for many applications, as in situations where low voltage DC sources such as batteries, solar panels or fuel cells must be converted so that devices can run off of AC power.

PWM Techniques: A Pure Sine Wave Inverter - Authors :Ian F. Crowley and Ho Fong Leung

This report documents the development of one component of an uninterruptible power supply, the DC-to-AC inverter. Through the use of analog signal processing techniques, a prototype which efficiently and accurately emulates the pure-sine wave power present on the power grid was created. The three-level PWM system within this report is created with the possibility of a feedback-regulated system to be implemented in the future.

MQP Terms A­B­C 2006 ­2007, Advisor: Professor Stephen J. Bitar

delabs Schematics