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TDK-Lambda Americas Blog

Knowledge is Power. Power is TDK-Lambda.

2020

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

2019

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

2018

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

2017

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

2016

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

2015

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
Aug. 31. 2015
IEC/UL/EN 60950-1 Amendment 2 60950-1 | Amendment 2 | 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
Mar. 09. 2015
Should power supply manufacturers adopt IEC 62368-1:2014 early to replace IEC 60950-1 and IEC 60065? 60950-1 | 60065-1 | Safety Certification | Legislation | 62368-1
Jan. 05. 2015
Pollution Degree Ratings for Power Supplies Pollution Degree | Safety Certification | Application Information

2014

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
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

2013

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
Jun. 12. 2013
Applications of DC-DC converters For Base Station RF Power Amplifiers Application Information | 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
Jan. 09. 2013
How to Avoid Being Ripped Off When Buying Power Supplies Counterfeit | Safety Certification | General Information

2012

Dec. 05. 2012
How can I use my power supply’s alarm signals? Application Information | Signals
Nov. 06. 2012
New Requirements for CE Marking on Power Supplies CE Mark | Safety Certification | Legislation
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
Aug. 09. 2012
Encoders vs. Potentiometers: Which one is best for programmable power supplies? Encoders | digital control | Programmable Power Supply
Jul. 03. 2012
Low Cost Power Supplies Can Be Expensive Cost of Ownership | Safety Certification | General Information
Jun. 13. 2012
What is a Limited Power Source? 60950-1 | Safety Certification | Limited Power Source (LPS)
May. 08. 2012
What is the difference between Bit Rate and Baud Rate in Power Supply Remote Communications? digital control | Programmable Power Supply
Apr. 09. 2012
Minimum loads and cross-regulation on multiple output power supplies Regulation | Minimum Load | Application Information
Mar. 15. 2012
Application Solutions: Displays and Kiosks Reliability | 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

2011

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
Oct. 04. 2011
How to safely power LEDs Constant Current | LEDs | Application Information
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

2010

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
Feb. 03. 2010
Choosing Power Supplies for Medical Applications Safety Certification | Medical

2009

Nov. 03. 2009
Why Use DIN Rail Mount Power Supplies? DIN Rail | Mounting
Oct. 09. 2009
Is there a wave of power supply obsolescence coming? Obsolescence | Safety Certification
Jul. 22. 2009
Operating Power Supplies in Series External Diodes | Application Information | Series Operation
May. 03. 2009
CE Mark and DC-DC converters RoHS | CE Mark | Legislation | DC-DC converters
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

2008

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
Jun. 13. 2008
Harvesting More Energy without Building More Power Plants Power Factor Correction | Legislation
May. 19. 2008
Choosing an Input EMI / EMC Filter for a Power Supply EMC & EMI | Application Information
Apr. 01. 2008
Benefits of Environmentally Friendly Power Supplies EMC & EMI | RoHS | Energy Efficiency | Legislation | General 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

2007

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
Nov. 05. 2007
Guide to EMC Standards for Power Supplies EMC & EMI | Safety Certification
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. 16. 2007
FAQ Modular power supplies Modular | General 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. 08. 2007
About Power Topics General Information

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