Power Supplies

May 2023

TRACO POWER’s new TRI 1 and TRI 1SM

1 watt DC/DC converters with 480 VAC isolation voltage

The core characteristic of the TRI 1(SM) series is a sophisticated reinforced isolation system which is able to withstand high test voltages (8000 VDC for 1s and 3000 VAC for 60s) and working voltages (480 VACrms). Efficiencies up to 84% allow safe operation from –40°C to +85°C without derating.

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Date:

05/10/2023

Inline Fuse Holder Series Offers Easier Installation, Saves PC Board Space

Littelfuse, Inc. announced the latest release of the 150520 Series Inline Fuse Holders product line. The latest 150520 Series Inline Fuse Holders are rated 600 VAC/VDC voltage at 20 amps in a 5x20 mm size. These convenient inline fuses are ideal for applications requiring supplemental circuit pr

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Date:

05/10/2023

ROHM Begins Mass Production of 650V GaN HEMTs that Deliver Class-Leading Performance

ROHM Semiconductor announced mass production of 650V GaN (Gallium Nitride) HEMTs GNP1070TC-Z and GNP1150TCA-Z optimized for a wide range of power supply systems applications. These new products are jointly developed with Ancora Semiconductors, Inc., an affiliate of Delta Electronics, In

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Date:

05/08/2023

Jason Lomberg, North American Editor, PSD

Back in the APEC Saddle

Jason Lomberg, North American Editor, PSD

Another APEC’s in the books, and while by all accounts, this year’s gala in Orlando was business-as-usual, it held special significance for me. I’m no greenhorn — to the industry, PSD, or APEC —but this was the first Applied Power and Electronics Conference I’ve attended since COVID-19 upended t

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Date:

05/01/2023

Click image to enlarge

Figure 1. Class 1, 2, 3, and 4 maximum voltage and power levels (NEC 2023 Edition)

Tech Trailblazer: Class 4 Fault-Managed Power Systems for 5G and More

Raj Radjassamy, Director, 5G and wireless segment for ABB Power Conversion

Power systems designers have, for decades, been limited by the strict guideposts on Classes 1, 2, and 3 circuitries, but the NEC’s newly defined Class 4 power (as laid out in Article 726) will offer a compelling alternative. Fault-Managed Power Systems and How They Work To understand the opportunities Clas

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Date:

05/01/2023