Mar. 24. 2025

What are the benefits of using a DC UPS? DC UPS | DIN Rail | UPS

Mar. 04. 2025

Guide to EMC Standards for Power Supplies EMC & EMI | Safety Certification

Jan. 02. 2025

What external components are required for a DC-DC converter? Application Information | DC-DC converters | External Diodes

Dec. 03. 2024

What are the advantages and disadvantages of using wide range input DC-DC converters? Buck Boost | DC-DC converters | Energy Efficiency | non-isolated

Oct. 01. 2024

Applications and use of EMI Filters for Industrial and Medical Applications EMC & EMI | Technical Article

Sep. 03. 2024

Using nanocrystalline cores for EMI filtering EMC & EMI

Jul. 23. 2024

Why use a modular power supply with wide range output voltage adjustment? Regulation | Application Information | Output Adjustment

Jun. 27. 2024

Selecting a line filter to reduce input transients EMC & EMI

May. 20. 2024

Short Circuit Current Rating (SCCR) and how does it apply to AC-DC Power Supplies and EMC/EMI filters? EMC & EMI | Legislation | Three phase

Feb. 14. 2024

Power Supply Product Lifecycles and Designs for Industrial Equipment Reliability | Regulation | Redundant Operation | Technology

Jan. 29. 2024

Using DIN rail power supplies with push-in connectors DIN Rail | General Information

Jan. 04. 2024

Tips for using the PFH500F AC-DC power module Application Information | Power Factor Correction

Oct. 25. 2023

How does a power supply output overvoltage protection work? PMBus® | Overvoltage | Protection | Remote Sense

Sep. 28. 2023

Why choose a power supply with a variable speed cooling fan? Audible noise | Fan | Cooling Techniques

Aug. 31. 2023

How to select an EMI filter and how is EMI testing performed? EMC & EMI

Jul. 17. 2023

Why are EMI/EMC filters needed? EMC & EMI

May. 25. 2023

Using high voltage distributed power for large systems DC-DC converters | Application Information | Three phase | High voltage distributed power

Apr. 03. 2023

What benefit does a power supply with 1 x MOPP output to ground isolation provide? Applied Part | Medical | Legislation | BF Rating | 60601-1

Feb. 27. 2023

How to protect equipment operating from a 28Vdc vehicle source EMC & EMI | DC-DC converters | Application Information

Jan. 31. 2023

How to use power factor correction power modules (Part 2) Power Factor Correction | Application Information

Dec. 19. 2022

Power Factor Correction (Part 1) Power Factor Correction | Legislation | Application Information

Nov. 22. 2022

Why use a modular power supply? Minimum Load | General Information | Audible noise | Cooling Techniques

Oct. 17. 2022

A power supply update on the transition of IEC 62368-1 Edition 2 to Editions 3 and 4 Legislation | Safety Certification | 62368-1

Sep. 27. 2022

What is PMBus® and what can I use it for? PMBus®

Aug. 31. 2022

How does IEC 60335-1 relate to industrial power supplies? Safety Certification | 60335-1

Jul. 25. 2022

Choosing a power supply for reliable operation in dirty environments Pollution Degree | Reliability | Application Information

Jun. 16. 2022

USB Type-C™ and USB PD for new portable electronic devices USB

Jun. 08. 2022

Technical Article – How to Extend the run Time on Battery Powered Equipment Technical Article

May. 27. 2022

How do I determine a power supply’s derating percentage? De-rating

Apr. 25. 2022

DC-DC converter switching frequencies – fixed or variable? DC-DC converters | Application Information

Apr. 14. 2022

Technical Article – Efficiency Trends in Power Conversion Technical Article | Energy Efficiency

Dec. 31. 2021

What are Bi-polar power supplies? Application Information | Bi-Polar | Programmable Power Supply

Jun. 29. 2021

Charging capacitors using constant current power supplies Constant Current | Constant voltage | Peak Current

Apr. 30. 2021

What do buffer modules do and how do I use them? Buffer | Hold-up

Feb. 26. 2021

What is UKCA? Updated Sept 2nd 2021 UKCA | Safety Certification | Legislation

Dec. 28. 2020

Peak power ratings with convection and conduction cooled power supplies Peak Current

Oct. 26. 2020

Using a Class I power supply in a Class II construction Grounding | 60601-1 | Class I & II | Medical

Aug. 28. 2020

Buck & Buck-Boost Converter Operating Ranges Buck Boost | Application Information | DC-DC converters

Jul. 31. 2020

What are buck, boost and buck-boost DC-DC converters? Buck Boost | DC-DC converters | Technology

May. 28. 2020

Avoiding noise issues when operating power supplies in parallel Parallel Operation | Remote Sense | Application Information

Apr. 15. 2020

How can I increase a power supply’s hold-up time? Aviation | Application Information | Hold-up

Feb. 20. 2020

How do I evaluate a convection cooled power supply’s performance? Reliability | Application Information | Cooling Techniques

Dec. 06. 2019

Can I operate my three phase power supply from WYE and Delta AC inputs? Three phase | General Information

Sep. 30. 2019

Fan cooling power supplies, which airflow direction is better? Fan | Reliability

Aug. 30. 2019

When are fuses needed in Line and Neutral for industrial applications? Fusing | Safety Certification

Jul. 31. 2019

When are dual fused power supplies not permitted? 60950-1 | Fusing | Safety Certification

May. 30. 2019

Does it matter how an EMC/EMI filter is wired to a power supply? EMC & EMI | Application Information

Apr. 29. 2019

How do I balance the current between two DIN rail power supplies used in parallel? Parallel Operation | DIN Rail | Application Information

Jan. 25. 2019

What is the difference between efficiency and average efficiency? Energy Efficiency | Regulation

Nov. 28. 2018

Can a dual output DC-DC converter provide a single output? Application Information | Series Operation | DC-DC converters

Oct. 26. 2018

Z+ - Generating Arbitrary Waveforms Application Information | Programmable Power Supply

Aug. 22. 2018

External Power Supply Efficiency Standards Energy Efficiency | Regulation

Jun. 27. 2018

An update to the transition from IEC 60950-1 to IEC 62368-1 60950-1 | 60065-1 | Safety Certification | Legislation | 62368-1

Apr. 27. 2018

Where and why is a 277Vac input used in the USA? 277Vac

Feb. 27. 2018

Synchronizing the i6A DC-DC Converter Switching Frequencies EMC & EMI | Synchronization | DC-DC converters

Jan. 08. 2018

Factors to consider when using 1U high power supplies in industrial environments Fan | Audible noise | Reliability | General Information

Nov. 07. 2017

Power Supply Overvoltage Category (OVC) OVC | Overvoltage

Sep. 01. 2017

Power supply fan noise reduction Fan | Audible noise

May. 24. 2017

Medical power supplies meeting IEC 60601-1-2 4th edition voltage dips and interruptions EMC & EMI | 60601-1 | Safety Certification | Medical

Jan. 17. 2017

How will the Power Supply Industry be affected by EN 55032 replacing EN 55022? EMC & EMI | Legislation

Nov. 22. 2016

How does IEC 60601-1-2 EMC 4th Edition relate to power supplies? EMC & EMI | 60601-1 | Safety Certification | Medical

Sep. 01. 2016

Comparing Power Supply MTBF Numbers MTBF | General Information

May. 26. 2016

Constant Voltage, Constant Current Battery Charging Constant Current | Battery Charger | Constant voltage | Application Information

Apr. 18. 2016

What is a Power Supply Standby Voltage? Standby Voltage | Application Information

Feb. 29. 2016

An alternative to isolated DC-DC converters POL | non-isolated | DC-DC converters

Jan. 21. 2016

Department of Energy Level VI energy efficiency standards for external power supplies Legislation | General Information

Nov. 30. 2015

Portable Generators and Electronic Power Supplies Application Information | ISO 8528 | Legislation

Oct. 29. 2015

Power Supply Safety Reports and Certifications 60950-1 | CB Report | Safety Certification

Jul. 29. 2015

Using Droop Mode Current Share Power Supplies Parallel Operation | DIN Rail | Application Information

Jun. 30. 2015

Comparing DC-DC Converter’s Usable Power De-rating | Application Information | DC-DC converters

May. 27. 2015

Understanding convection cooled power supplies Application Information | Cooling Techniques

Apr. 16. 2015

Reducing noise on open frame power supplies EMC & EMI | Application Information | Ripple & Noise

Jan. 05. 2015

Pollution Degree Ratings for Power Supplies Pollution Degree | Safety Certification | Application Information

Nov. 28. 2014

What pin material should I use for my power supply connector pins? Connectors | Application Information | General Information

Aug. 26. 2014

Ground Continuity & Ground Bonding Tests on Power Supplies Grounding | Safety Certification

Jul. 31. 2014

UL 60601-1 and ANSI/AAMI ES 60601-1 60601-1 | Safety Certification | Legislation | ANSI/AAMI

May. 20. 2014

Cathodic Protection Using Active Corrosion Control Application Information | Cathodic Protection | Z+

Mar. 03. 2014

When should external diodes be used with a power supply? External Diodes | Redundant Operation | Application Information

Jan. 21. 2014

Power Supply Operation on a 400Hz Source Aviation | Application Information | 400Hz

Dec. 20. 2013

The advantages of using a power supply incorporating digital control to power non-linear loads digital control | Technology

Oct. 30. 2013

Reducing Switching Power Supply Radiated & Conducted EMI EMC & EMI | Grounding | Application Information

Sep. 23. 2013

“Brute Force” Parallel of Power Supplies Parallel Operation | Application Information

Aug. 30. 2013

What Makes Switching Power Supplies Hiss? Energy Efficiency | General Information

Jul. 12. 2013

Power Supply Filter Capacitor Values Can Change with the Applied Voltage POL | non-isolated | DC-DC converters

May. 10. 2013

What Size Heatsink Do I Need? Energy Efficiency | Application Information | Cooling Techniques

Apr. 02. 2013

Power Supply Remote Sense Mistakes and Remedies Remote Sense | Regulation | Application Information

Mar. 05. 2013

What does SELV mean for Power Supplies? 60950-1 | Safety Certification | SELV

Feb. 07. 2013

Power Supply Rise and Fall Output Characteristics Application Information | Signals | Rise and Fall Times

Dec. 05. 2012

How can I use my power supply’s alarm signals? Application Information | Signals

Oct. 09. 2012

How Does Altitude Affect AC-DC Power Supplies? 60950-1 | Safety Certification | Altitude

Sep. 05. 2012

Efficiency Calculations for Power Converters Energy Efficiency | Application Information | Cooling Techniques

Jun. 13. 2012

What is a Limited Power Source? 60950-1 | Safety Certification | Limited Power Source (LPS) | DSP

Apr. 09. 2012

Minimum loads and cross-regulation on multiple output power supplies Regulation | Minimum Load | Application Information

Mar. 14. 2012

Wide range adjustable power supplies Output Adjustment | Application Information

Feb. 02. 2012

Advantages of Conduction-Cooled Power Supplies Reliability | Application Information | Cooling Techniques

Dec. 05. 2011

What is a Power Supply’s IP Rating? Ingress Protection (IP) | Safety Certification | Application Information

Nov. 03. 2011

Mounting Precautions for Power Supplies Mounting | Application Information | Cooling Techniques

Sep. 09. 2011

Using Power Supplies with Brushed and Brushless DC Motors DC Motor | External Diodes | Application Information

Aug. 02. 2011

What type of LED driver or power supply do I need? Constant Current | LEDs | Constant voltage

Jul. 06. 2011

What does a BF rating on a power supply mean? 60601-1 | Safety Certification | Applied Part | BF Rating

Jun. 07. 2011

Power Supply Losses and the Impact of Rising Efficiencies Energy Efficiency | Application Information

May. 23. 2011

Class 2 or Class II power supplies? 60950-1 | Class I & II | Class 1 & 2 | Safety Certification

Apr. 01. 2011

Where’s the CSA logo on my power supply? Product Marking | Safety Certification

Mar. 02. 2011

How does the AC Fail signal work in a power supply? Application Information | Signals

Feb. 07. 2011

Inrush Currents & External Fusing on Power Supplies Inrush Current | Fusing | Application Information

Dec. 15. 2010

Power Supply Efficiency – How Important is it? Energy Efficiency | Legislation

Nov. 24. 2010

Using the Inhibit or Enable function on Power Supplies Remote On/Off | Application Information | Signals

Oct. 28. 2010

Damaging Power Supplies with Repetitive Peak Current Draws Application Information | Peak Current

Sep. 30. 2010

How does the new UL Mark affect me? 60950-1 | 60601-1 | Product Marking | Safety Certification

Aug. 02. 2010

Power Supply Leakage Current Testing to IEC60990 Leakage and Touch Current | Safety Certification

Jul. 06. 2010

Did my power supply fail or just wear out? Reliability | General Information

May. 13. 2010

Common safety standards used with power supplies 60950-1 | 60601-1 | Safety Certification | 61010-1

Apr. 26. 2010

Cold Temperature Start Up of Low Cost Power Supplies with Inrush Thermistors Application Information | Cold Temp Start Up

Mar. 03. 2010

Hipot or Dielectric Strength Testing Safety Certification | Application Information | Hipot Test | Dielectric Strength Test

Nov. 03. 2009

Why Use DIN Rail Mount Power Supplies? DIN Rail | Mounting

Jul. 22. 2009

Operating Power Supplies in Series External Diodes | Application Information | Series Operation

Apr. 22. 2009

Maximizing the Life of Power Supply Fans Reliability | General Information | Cooling Techniques

Mar. 28. 2009

Why pay more for a power supply with a longer warranty? Reliability | General Information

Feb. 20. 2009

Power Supply Considerations for Industrial Applications EMC & EMI | Mounting | Reliability | Application Information | Peak Current

Jan. 29. 2009

What Size Fan Do I Need? Application Information | Cooling Techniques

Dec. 23. 2008

What is the SEMI F47 line sag spec all about? SEMI F47 | Legislation

Nov. 21. 2008

Ripple & Noise Specs and Measurements Application Information | Ripple & Noise

Sep. 19. 2008

Over Current Protection in Power Supplies & Converters General Information | Protection

Aug. 05. 2008

Power Supplies with Wide Range Adjustable Outputs Output Adjustment | General Information

Jul. 03. 2008

What is Remote Sensing? Remote Sense | Application Information

May. 19. 2008

Choosing an Input EMI / EMC Filter for a Power Supply EMC & EMI | Application Information

Mar. 05. 2008

Droop Mode Current Share Parallel Operation | DIN Rail | Application Information

Feb. 08. 2008

What is PFC and why do I need it? Energy Efficiency | Power Factor Correction | Legislation

Jan. 03. 2008

What does 1U, 2U or 3U mean? Mounting | General Information

Dec. 05. 2007

What do they mean by Output Power Derating? De-rating | Operating Temperature | Application Information

Nov. 26. 2007

What are the differences between Conduction, Convection and Radiant Cooling of Power Devices? General Information | Cooling Techniques

Oct. 26. 2007

Isolated & Non-Isolated DC-DC Converters non-isolated | DC-DC converters

Oct. 08. 2007

Why is my power supply input only rated from 100-240VAC? Product Marking | Safety Certification

Sep. 18. 2007

A “Beginner’s Guide” to Fault Tolerant Power Supplies Reliability | Redundant Operation | Application Information

Sep. 07. 2007

Advances in Power Supplies for Automated Electrochemical Mini-Plants Constant Current | Application Information | Water Purification

Sep. 06. 2007

What’s all this stuff about Digital Power? digital control | Technology

Sep. 04. 2007

Can I Operate my AC-DC Power Supply with a DC Input? Application Information | DC-DC converters

Aug. 17. 2007

What size and type of output wires should I use? Wire Gauge | Application Information

Aug. 09. 2007

Types of Distributed Power Architectures POL | Application Information | DC-DC converters

Aug. 08. 2007

Linear vs. Switch-mode Power Supplies General Information

Aug. 07. 2007

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