Design

IMS-based evaluation platform cuts power systems cost

11th December 2017
Mick Elliott

The GSP65RxxHB-EVB insulated metal substrate (IMS)-based evaluation platform from GaN Systems is now being shipped by distributor Mouser Electronics. The IMS evaluation platform demonstrates an inexpensive way to improve heat transfer, increase power density, and reduce system cost of power systems in automotive, consumer, industrial, and server or data centre applications.

The IMS-based evaluation platform consists of the GSP65MB-EVB motherboard and two IMS evaluation modules that each includes a high-power, bottom-side-cooled GaN Systems GS66516B enhancement mode high electron mobility transistor (E-HEMT).

The 650V IMS evaluation modules are configured as a half bridge and are available in 13 milliohm, 2–4 kW and 25 milliohm, 4–7 kW variants.

Together, the motherboard and IMS evaluation modules enable 10 different configurations, with two additional configurations when using a second motherboard.

Designers can also use the IMS evaluation modules independently as a high-power gallium nitride (GaN) intelligent power module (IPM) with their own boards for in-system prototyping. The evaluation modules offer very low inductance and feature an optimised driver board that minimises both the power and gate driver loops.

Typical applications include onboard chargers, DC/DC converters and three-phase inverters for electric and hybrid vehicles, industrial photovoltaic inverters and motor drives, switch mode power supplies for server/data centers and residential energy storage systems.

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