Technical Bulletin

Technical Bulletin – December 2018

Safety Approvals: The PSE Mark Introduction Japan is widely considered to have the third largest economy in the world. It is no surprise that Japan is an appealing market for the sale of all sorts of goods, including electronics. However, to sell a product into the Japanese market manufacturers must first obtain all of the […]

Technical Bulletin – November 2018

Going the Distance: DC Cable Length Consideration Introduction Here at Power Partners, a significant majority of our business is in developing modified-standard AC/DC converters, tailoring one of our off-the-shelf solutions to meet the more particular needs of a specific application. The modifications we have developed over the years span a wide range of technical challenges, […]

Technical Bulletin – September 2018 (2)

Safety Approvals: Limited Power Sources and Types of Limiting Introduction Most industrial AC/DC power supply labels are littered with a wide assortment of agency approval marks. In examining the approval marks on lower-power adaptors, one may occasionally come across the three letter acronym: LPS. We receive inquiries almost weekly regarding the LPS compliance of our […]

Technical Bulletin – September 2018

Quality Management Systems ISO9001:2015 Introduction Both Power Partners Inc and Protek Power North America are now ISO9001:2015 registered companies! Developing and implementing an ISO9001 recognized quality management system is an increasingly valuable stride toward fostering sustainable business development initiatives. The fourth edition of the ISO9001 standard, which was published in 2008, will no longer be […]

Technical Bulletin – June 2018

Load Sharing Considerations: Why Two is Not Always Better Than One Introduction From time to time, we get asked about the current sharing capabilities of our power supplies, and whether or not they can feed a load in parallel. This usually comes up when discussing modular system applications where the desire is for independent supplies […]

Technical Bulletin - March 2017

Technical Bulletin – March 2017

Means of Protection IEC 60601-1 3rd edition uses Means of Protection (MOP) to classify the electrical safety requirements of medical electrical (referred to as ME) equipment. There are two classifications: Means Of Operator Protection (MOOP) and Means Of Patient Protection (MOPP). Devices that make patient contact require two means of patient protection (2 x MOPP) […]

Technical Bulletin – March 2018

EMC Implications of Using a Class II Power Supply in a Class I Application Introduction The majority of power supplies used in commercial or industrial applications today fall into one of two construction categories, Class I or Class II (not to be confused with Class 1 and Class 2). These classes are associated with safety, […]

Technical Bulletin – February 2018

Hazard Based Standard IEC 62368-1 to Replace IEC 60950-1 in 2020 Why IEC 60950-1 is Going Away Gone are the days when a telephone was just a telephone, and a printer was just a printer. The technology around us has become increasingly smart with every year that passes. While the ubiquity of smart-gear in the modern […]

Technical Bulletin – January 2018

Power Partners is Ready for EU Energy Efficiency CoC Tier 2 Legislation Ever–Evolving Efficiency Standards Since 2004, a number of regulatory agencies dedicated to the common goal of energy conservation have sprung up around the globe. This trend was kicked off when researchers at UC Berkeley determined that approximately 195TWh of electrical energy was being wasted yearly in […]