Industry Information

Update October 10, 2022

IEC/EN/UL 62368-1 and IEC/EN/UL 60950-1 Limited Power Source (LPS) Rated Power Supplies A Limited Power Source (LPS) as defined in IEC 62368-1 and IEC 60950, is a secondary circuit with an open...

Update September 29, 2022

What is an power adapter plug?

AC power plugs connect electric equipment to the alternating current (AC) mains electricity power supply in buildings and at other sites. Electrical AC plugs differ from one another in voltage and...

Update September 15, 2022

What is NEMA and What Are NEMA Ratings?

The acronym “NEMA” stands for the National Electrical Manufacturers Association. Founded in 1926, the NEMA formed out of the merger of the Associated Manufacturers of Electrical Supplies and the...

Update August 31, 2022

What is a Power Supply Unit (PSU) and SMPS?

A PSU is an internal Power Supply Unit component. Despite the name, Power Supply Units (PSU) do not supply systems with power, instead they convert it. Specifically, a power supply converts the high...

Update August 25, 2022

What is PSU Power Supply?

What is a PSU and what does it do? PSU stands for power supply unit, an internal IT hardware component. Instead of supplying the systems with power, it converts the electricity source into the...

Update August 05, 2022

Getting approved for UL or ETL labels

Approval is EXPENSIVE. This is why you might see a company only certify a few product offerings. Priority usually goes to products that will be sold to companies who value the high standards for...

Update August 05, 2022

UL vs ETL safety standard certifications

The main difference between UL and ETL listed products is that ETL doesn’t create its own standards for certification. UL develops standards that are used by other organizations, including ETL. Both...

Update July 29, 2022

PFC (power factor correction or power factor controller)

PFC (power factor correction; also known as power factor controller) is a feature included in some computer and other power supply boxes that reduces the amount of reactive power generated by a...

Update July 27, 2022

What is a Universal Power Adapter?

Universal power adapters are devices that make it possible to connect a power supply to various devices in just about any setting. There are adapters for handheld devices, LCD monitors and even for...

Update July 22, 2022

Power Supply Over Current Protection

In order to avoid overcurrent damage to the switching tube due to short-circuit or overloading of the load, the switching power supplies must have an overcurrent protection function. The simplest...