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STMicro unveils power supply solutions

Posted: 21 Jul 2011 ?? ?Print Version ?Bookmark and Share

Keywords:power supply? battery charger? lithium-ion battery? home smart meters?

STMicroelectronics Inc. has unveiled its SPV1020!a DC/DC converter IC embedded with an algorithm of maximum power point tracking (MPPT)!that targets solar power applications. It has both power optimization and power conversion functions that can individually set the MPPT and make the most of the power output from each cell. STMicro has also demonstrated the SPV1001 cool bypass switch that integrates low loss MOSFETs and precision controllers. The device allows each solar battery cell to deliver more electricity that effectively equips the SPV1001 with the same capabilities as bypass diodes, STMicro said.

The company has also shown the SPV1040!a battery charger IC for mobile equipment that is equipped with a solar battery panel. Unlike conventional products that control power generated by multiple solar battery cells, the SPV1040 can boost power from one solar battery cell. Moreover, the device is equipped with MPPT functionality to optimize the output of solar battery panels that secures the maximum level of power generation.

For portable battery-charger applications, STMicro has revealed the STBC21 that gives total control of lithium-ion battery charging, if installed in portable electrical-equipment battery chargers or in the equipment itself. The device achieves higher efficiency in battery chargers, and has excellent battery protection and precise control of charging time, indication, current and voltage, the company noted.

STMicro's STC3100 is an IC for determining the remaining lithium-ion battery level. The STC3100!installed in portable devices such as smart phones, tablet terminals and digital cameras!detects and calculates the current level of the battery to display the remaining battery level of the electronic equipment.

In power-line communications, STMicro has highlighted solutions for home smart meters that are indispensable for building the smart grid. The company's smart meters support an automated meter reading and charging system via power line communication. The demonstration used an evaluation board with an ST7580 PLC SoC, STPM series power measurement IC and STM32 ARM Cortex-M3 core-based 32bit microcomputer. STMicro has also introduced a highly integrated solution for a data collection system (concentrator) that collects information from each power meter.

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