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James Morrison has more than 30 years of expertise in high-voltage power supply design and manufacturing for applications from scientific analysis and x-ray to intense pulsed lasers, mass spectrometry, nanotechnology, and aerospace.
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©Copyright 2017 Advanced Energy Industries, Inc. All rights reserved.
April 10, 2017
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At recent photonics conferences, researchers and designers from laboratories and corporations worldwide have been introducing exciting technologies and solutions in the field of optoelectronics. These devices will enable the latest products for reliable and repeatable results in science, research, analytical instruments, industrial process, and medical applications. Optoelectronics utilize lasers, electro-optics, and detectors to bring light and electronics together. In part one of this three-part blog series, we’ll focus on lasers. Later, we’ll cover electro-optics and detectors.
A laser is a device that generates an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules. Most lasers are semiconductor diode-based or gas tube-based. While single-diode lasers often use a low-voltage power source at high current, most higher-powered lasers use a pulsed high voltage through an array of laser diodes or a gas laser tube.
Pulsed lasers require precision, high-voltage (HV), pulsed power to achieve accurate pulse-to-pulse repeatability, essential to long-term electronics reliability and repeatable results in science, research, analytical instrument, industrial, and medical applications. One key element—over-shoot, varying from pulse to pulse—will dramatically affect the energy of each pulse (voltage squared) and can damage high-voltage switches. An error of 10% in charge voltage results in a change of 20% in joules stored, and the same 10% error can cause over-voltage to HV switches directly or during any resonant ringing. In pulsed-power applications directly driving the laser, it’s critical that the high-voltage, capacitor-charging power supplies feature very low over-shoot and high-accuracy, pulse-to-pulse repeatability (< 0.1%) to achieve consistent energy levels, and to protect high-voltage switching devices. Advanced Energy offers the C series
and CC series
DC-to-HVDC capacitor-charging supplies to deliver these specific performance results from 30 W to 1 kW with industry-leading performance and package size for power and voltage density.
Continuous wave (CW) lasers require a precision, current-regulated, high-voltage power supply that delivers accurate and repeatable current while protecting the laser and electronics with programmable limits for output voltage and current. This run
power supply typically requires specifications of 1.0% and often < 0.1% or better for accuracy and stability over time, temperature, and load.
If the CW laser is gas-based, an additional low-power strike
power supply is needed at 3X to 10X higher voltage to ionize the gas to a conduction state that a high-voltage, diode-isolated run
supply can sustain. Advanced Energy offers the C series
and CC series
DC-to-HVDC supplies and MV series
and OL series
AC-to-HVDC supplies to deliver specific run
power supply results from 30 W to 10 kW+. Advanced Energy also offers the A series
and AA series
DC-to-HVDC supplies and optional second outputs on the AC-to-HVDC supplies to deliver the strike
power supply results needed.
CONTACT US TO FIND OUT MORE ABOUT SOLUTIONS FOR YOUR SPECIFIC APPLICATION.
December 27, 2016
Delivering Solutions for High-Voltage Challenges
In 2016, Advanced Energy continued to solve high-voltage challenges by advancing the products and the processes that make our HiTek Power®
product lines the choice of designers around the world. We offer a comprehensive high-voltage selection
within our 57 product lines. We are also happy to work with you directly on a derivative of one or more of our existing products, and even create a fully customized product that meets your unique requirements. Our precision high-voltage modules, racks, and custom solutions power mission-critical end-user and OEM applications such as:
X-ray – Advanced controls and protection with great stability and reliability
E-beam – Very low ripple and noise, and PPM-level stability
NEW! Our EG353 power supply offers precision electron beam HVPS SEM and FIB-based tools, with high accuracy, high stability, and low ripple and noise.
I-beam – Rugged for harsh applications and provides excellent stability
NEW! Our MV3000 power supply is perfect for ion beam magnets and other 0 to 300 VDC high power applications, with high accuracy, high stability, and low ripple and noise.
Laser – Power in a small size for laser and electro-optics, including HV amplifiers
Ultrasonics – Sophisticated micro-sized HV power, from 100 mW to 30 W, for portable and hand-held devices
Detectors – Micro-sized, floating, and PPM-level performance solutions
Standard modules and accessories – Pre-engineered products and accessories with fast lead times
NEW! Our 40-60C pulsed power and DC bias power supplies include DC to HVDC modules for 40 to 60 kV at a volume of 10 CC per HV watt.
We think it’s important that we not only provide the best product selection, but easy access to the high-performance specifications and information you need, when you need it, so you can make the best decisions. Our comprehensive website provides the detail to do just that. Now, you can simplify your search by entering your unique specifications into our high-voltage product search page
. Simply enter your minimum/maximum output voltage and power needs, along with other advanced criteria, and review a list of the products that will work for your environment.
We hope you’ve had the opportunity to check out some of our latest on-demand webinars, including:
High-Voltage Power for Mass Spectrometry
High-Voltage Power for Industrial X-Ray Sources and Detectors
Throughout the year, we continued to work hard to provide best-in-class support with 15 Advanced Energy sales offices
globally, plus a worldwide network of high-voltage distributors, all supported by two Advanced Energy high-voltage design centers. More than 200 direct service professionals are located near customer sites around the world, and our footprint includes best-in-class manufacturing facilities located in the U.S., U.K., China, and India. Our industry-leading quality management systems are independently verified as best-in-class in the industries we serve.
Updating you on the latest trends, industry news, and information related to high voltage is important to us, and we hope you’ve had the opportunity to check out our High Voltage Highlights
blog posts throughout the year.
We hit the trade show
circuit throughout 2016, rounding out the year in Tokyo at SEMICON Japan.
It is our pleasure to find ways to help make your manufacturing environments work seamlessly by providing accurate, reliable high-voltage power. We look forward to continuing to find new ways to solve your most challenging problems.
Have a happy New Year!
December 12, 2016
I’ve just returned from the 5th
International Conference and Exhibition on Lasers, Optics, and Photonics held in Atlanta. There was much to see and learn with 55 global presenters focused on science, research, and commercial viability in this fascinating field. Scientists, researchers, and scholars exchanged information on research findings related to all aspects of optics, lasers, and photonics. Recent innovations, trends, and challenges in these fields were also shared. The conference organizers plan to share videos of the presentations online in January. We will link to those from this page as soon as they become available.
Advanced Energy was proud to be a corporate sponsor of the conference. I had the privilege of speaking to an academic audience on Advanced Energy’s high-voltage products and share some insights on current applications.
In addition to high voltage, there were many exciting topics presented during the conference, including:
Material science research
New processes and solutions in semiconductors
Biophotonics using precision low voltage
RF-based CW and pulsed lasers
We were pleased to be a part of this event and look forward to building on the relationships we made during our time in Atlanta.