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New  power modules support all major solar converter topologies

New  power modules support all major solar converter topologies

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By eeNews Europe



Microsemi has released nine modules for transformer-based converters, including solutions for the transformer’s primary side that combine power factor correction (PFC), bypass diode and phase leg functionality, and solutions for the transformer’s secondary side that combine a secondary fast rectifier with a full bridge.

The company also has introduced four modules for transformerless solar converters that combine a boost stage with bypass diode and fast full bridge, as well as three modules for three-phase, three-level NPC solar converters that include boost and buck stages to provide an interface between solar panels and the converter’s output stage.      

Microsemi offers customers a variety of mix-and-match feature options for modules that are tailored for use in the following applications:      

Transformer-based Solar Converters: For applications on the transformer’s primary side, customers have a choice of diodes for the modules’ MOSFET boost stage, and can select either standard MOSFETs or  those with an improved body diode in the phase leg, which is targeted for use in a phase-shifted or zero voltage switching (ZVS) topology. All devices are housed in a low-profile, low-inductance SP1 package. For the secondary side, Microsemi offers modules in an SP3F package that include a thermal sensor for over-temperature protection plus an IGBT/MOSFET combination for the output bridge. Alternatively, customers can choose an all-IGBT option (trench and field stop) to minimize conduction losses at line frequency, or an all-MOSFET option to maximize bridge efficiency.     

Transformerless Solar Converters:  Microsemi’s new modules combine PFC, bypass diode and full bridge functionality along with a thermal sensor in an SP3F package. For the output bridge, customers can choose an  IGBT/MOSFET combination, or specify an all-MOSFET configuration or one that combines trench and Non-Punch-Through (NPT) IGBT switch technology.  A choice of CoolMOS or SiC diodes is available for implementing the  modules’ bypass functionality.     

Three-Phase, Three-Level NPC Solar Converters:  Modules are available with 650 V/19 mOhms and 600 V/24 mOhms MOSFETs and 100 A/600 V trench and  field stop IGBTs, plus a choice of FRED boost diodes or, alternatively, SiC devices that boost the converter’s input-stage efficiency while increasing switching frequency. Microsemi’s offering spans the complete power chain for three-phase solar converters, from input to output, at power levels up to 20 kW.            

Availability and Pricing     

All of Microsemi’s new solar-converter power modules can be sampled now and are priced as follows in OEM quantities of 1,000:      

Modules for Transformer-Based Solar Converters   

Primary Side: APTC60AM45BC1G, APTC60AM45B1G, APTC60AM83BC1G and APTC60AM83B1G  

Secondary Side: APTCV60HM45RCT3G, APTCV60HM45RT3G, APTCV60HM70RT3G, APTC60HM70RT3G, and APTGT50H60RT3G  

Pricing: $27.95 to $50.58 depending on device specifications            

Modules for Transformerless Solar Converters   

APTCV60HM45BC20T3G, APTCV60HM45BT3G, APTCV60HM70BT3G, and APTGV50H60BT3G  

Pricing: $29.73 to $50.61 depending on device specifications            

Modules for Three-Phase, Three-Level NPC Solar Converters 

APT5M65BBM19T3G, APTC60BBM24T3G, and APTGT100BB60T3G  

Pricing $27.06 to $59.00 depending on device specifications   
        
Visit Microsemi at www.microsemi.com

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