Power Supplies

January 2026

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Figure 1: Schematic of a high-voltage PowiGaN cascode switch

1250 V/1700 V GaN HEMTs for NVIDIA 800 VDC Architecture

Kamal Varadarajan & Chris Lee, Power Integrations

GaN-based power semiconductors are ideal for high-efficiency power converters thanks to their superior material properties. However, very few manufacturers offer GaN HEMTs rated above 650 V. The main challenge is that GaN devices built on silicon substrates require very thick buffer layers, which adds significant pr

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Date:

01/31/2026

Safe and Easy Surge Protection

The new VALVETRAB Safe Protection Plus (VAL-SPP) surge protective devices from Phoenix Contact protect both the installers and the end equipment. The new SPDs feature miswiring and touch protection, plus a reduced tightening torque of just 3 Newton-meters (Nm). The family includes the VAL-US-SPP, designed

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Date:

01/26/2026

Russelectric, a Siemens Business, Highlights RTSCD Commercial Duty Service Entrance Rated Transfer Switches

Russelectric, A Siemens Business, a leading manufacturer of power control systems and automatic transfer switches, announces its new RTSCD-SE Commercial Duty Service Entrance Transfer Switches, a cost-effective option ideal for commercial spaces. Educational campuses, high-rise complexes, industrial plants, an

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Date:

01/15/2026

Happy Holidays and a Wonderful New Year!

PSD Staff

Happy Holidays, and we look forward to working with you and bringing you the greatest in power news, products, and commentary in 2026!

Date:

01/04/2026

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Figures 1a and 1b: Unidirectional and bidirectional charging systems (Source: Bel Fuse)

Bidirectional Charging Systems at Different Power Levels

Harvey Wilson, Senior Manager Industrial Vertical Markets EMEA, Avnet Silica

Power conversion is a key function within energy management and storage systems, and a growing market for energy-efficient solutions is driving innovation in power electronics. Bidirectional charging (BDC) is one such innovation that transforms energy management and enables a wide range of new applications. In

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Date:

01/01/2026

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Figure 1: Flexibility capacity additions to 2050 (Energy Transition Scenario)

Flexible Engine Power Plants

Patrik Farkas, General Manager, Market Development, Middle East and Asia, Wärtsilä

In modern power systems, flexibility is more than just a technical necessity – it’s also a highly effective tool to unlock new profit-boosting revenue streams. As the share of renewables increases, the need for flexibility in power systems is increasing with it. Plants that integrate reciprocating internal co

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Date:

01/01/2026