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Power Integrations (PI) has introduced an updated version of its PI Expert Suite v7.1.4 power supply design software.

The module, which supports Power Integrations’ HiperPLC controller IC, speeds the design of resonant LLC power supplies with power factor correction (PFC) by eliminating iterative magnetic design.

HiperPLC combines PFC and LLC controllers in a single IC.

Targeting high-efficiency offline convertors from 200-600W, HiperPLC minimises the cost of magnetic components and high-voltage bulk storage capacitors by synchronising the PFC and LLC convertor stages.

Applications for HiperPLC include LCD TVs, PC power supplies up to 80+ Gold (92 per cent efficiency), LED street lights, telecom power systems, and a range of industrial applications.

PI Expert Suite v7.1.4 features the automatic selection of series and parallel resonant element values from user-defined output load requirements and nominal switching frequency.

The software also ensures zero-voltage switching (ZVS) under all LLC load conditions.

PI Expert automatically calculates losses in key power elements of the PFC and LLC power stages and performs PFC boost choke power loss and magnetic field intensity (H) calculations for the PFC choke design.

The software provides a visualisation tool that graphically illustrates a design’s switching frequency versus output power, enabling the designer to specify appropriate verification experiments to confirm reliable operation of the final product under a range of operating conditions.

PI Expert Suite v7.1.4, with fully supported English and simplified Chinese versions, can be downloaded at PI’s website.

Power Integrations

Power Integrations is the leading supplier of high-voltage integrated circuits used in energy-efficient power conversion. The company’s innovative technology enables compact, energy-efficient power supplies in a wide range of electronic products, in AC-DC, DC-DC and LED lighting applications. Since its introduction in 1998, Power Integrations’ EcoSmartä energy-efficiency technology has saved an estimated $4.5 billion of standby energy waste and prevented millions of tons of CO2 emissions. The company’s Green Room web site provides a wealth of information about “energy vampires” and the issue of standby energy waste, along with a comprehensive guide to energy-efficiency standards around the world. Reflecting the environmental benefits of EcoSmart technology, Power Integrations is included in clean-technology stock indices sponsored by the Cleantech Group (Amex: CTIUS) and Clean Edge (Nasdaq: CELS).

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