Answers to common Capacitor Charging Questions The most common method of pumping solid-state pulsed lasers is still through the use of flashlamps which receive energy from the discharge of a high energy storage capacitor. In such systems the job of…
Answers to common Capacitor Charging Questions The most common method of pumping solid-state pulsed lasers is still through the use of flashlamps which receive energy from the discharge of a high energy storage capacitor. In such systems the job of…
When considering options for laser diode driver design the determining factors include size, weight, cost, efficiency, and reliability over specified environmental operating conditions. Unfortunately, these factors are often in conflict with one another. The least expensive approach often will not be…
Switch Mode Laser Diode Driver Approximately 20 years ago, as industry was starting to replace linear designs with switch mode power supplies to achieve smaller size and higher efficiency, Hughes Aircraft Company in 1994 disclosed a resonant buck converter to provide…
Linear Laser Diode Driver Solution The AMI Model 778 Laser Diode Driver was an early example of the simple linear design approach. This driver and the current version, AMI Model 779A, has been available for 25 years. In such a design,…
Design and Optimization of High Current Laser Diode Drivers INTRODUCTION These posts will explain the development and technical challenges encountered in the design of laser diode drivers, especially high current devices used in military applications. The pros and cons of simple…
OSCILLATION IN AMPLIFIERS Most amplifiers work without problems, but in some cases oscillations may occur with high frequencies/high gains and/or poor layout. The first step is to measure the frequency and amplitude of the oscillation. Use the internal triggering of…
Specifically How to Measure Noise when using AMI’s transimpedance and voltage amplifiers VERIFICATION When determining how to measure noise one question that is frequently asked is how to verify the noise performance of voltage and current amplifiers. This note suggests…
Introduction Design of Capacitor Charging Power Supplies: In order to power laser flashlamps, pulse forming networks, and other energy storage capacitor applications, the capacitor is charged up in voltage, then regulated. This creates an unusual and different situation from conventional…
Transimpedance Amplifier Selection Guide AMI designs and manufactures a range of Transimpedance Amplifiers for OEM, medical and research applications primarily for use with photodetectors. AMI’s amplifiers combine low noise, high gain, large dynamic range, and small package size. The key…
Today is the final day of SPIE Defense & Commercial Sensing Conference. Tim Ayres and Gary Sweezey will be in AMI’s booth on the show floor from 10AM to 2PM EDT for the final day of the SPIE Defense & Commercial…