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Switched-Mode battery topology delivers charging efficiency 31/8/2010

Intersil has added to its family of compact battery chargers by introducing the new ISL9220. The device is based on a true switched-mode topology that ensures high operating efficiency and low power dissipation for 1-cell and 2-cell Li-ion and Li-polymer based portable applications such as smartphones ...

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  • DC/DC converter steps up as well as down 30/8/2010

    Powerstax has introduced flexible, high-power DC/DC converters backed by enhanced application support. These 500W output, industry standard “full brick”, ultra-high efficiency and flexible converters have been ....

    840W dual power supply adds flexible interfaces 26/8/2010

    The CPX400DP is the latest in the CPX series of PowerFlex regulated power-supply units from TTi. Based around the power electronics of CPX400A unit, the supply incorporates manual control features in addition to ....

    RMS RF power detector for 3G/4G handsets 26/8/2010

    The linear RMS (root-mean-square) RF (radio frequency) power detector from National Semiconductor offers high precision with up to 40dB dynamic range. The PowerWise LMH2120 increases wireless coverage and extends ....

    PWM controller uses active-clamp architecture 25/8/2010

    Maxim Integrated Products has introduced the MAX5974, a high-frequency, current-mode PWM controller with an active-clamp architecture and spread-spectrum operation. The device's active-clamp topology delivers better ....

    Power MOSFETs feature mid voltage silicon technology 11/8/2010

    International Rectifier has introduced a family of HEXFET power MOSFETs, which feature low RDS(on) (on-state resistance) in an industry-standard SOT23 package for applications including battery charge and discharge ....

    Low-power miniature photorelays 11/8/2010

    You can replace electromechanical relays with a new series of isolated photo-relays in applications with up to 400 mA switched current. Toshiba Electronics’ TLP170 devices occupy an SOP4 ....

    Power manager features over voltage protection circuit 7/8/2010

    Linear Technology has introduced the LTC4098-3.6, an autonomous high efficiency power manager, ideal diode controller and battery charger for 1-cell Lithium Iron Phosphate (LiFePO4) batteries used in portable devices ....

    High-current LED features reduced thermal resistance 7/8/2010

    The OSRAM Opto Semiconductors has introduced the OSTAR Compact, characterised by enhanced current capability and low thermal resistance. It can handle up to 6A in pulsed mode which is suitable for ....

    Ultra-low-power 12bit ADC enables high-quality ultrasound imaging 4/8/2010

    Maxim Integrated Products has introduced the MAX19527, an ultra-low-power, 12bit, 50Msamples/s ADC optimised for portable ultrasound systems. Integrating eight channels on a single chip, this ADC operates from a ....

    Power MOSFETs feature mid voltage silicon technology 30/7/2010

    International Rectifier has introduced a family of HEXFET power MOSFETs, which feature low RDS(on) (on-state resistance) in an industry-standard SOT23 package for applications including battery charge and discharge switches, ....

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