Power Electronics / Power Management


Latest Articles

Buck regulator for RF PAs
2 September 2009, NuVision Electronics, ASIC Design Services
austriamicrosystems has launched the AS1339, a tiny, highly efficient step-down regulator designed for multiband WCDMA/NCDMA and similar wireless applications. The device delivers up to 650 mA from an ...

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Motor efficiency depends upon power factor correction, too - Part 2
19 August 2009, ASIC Design Services
The first part of this article appeared in Dataweek 5 August 2009.    Power factor correction for modern motor drives While modern motor drives provide many features and can greatly enhance the efficiency ...

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Synchronous DC-DC converters
19 August 2009, CST Electronics
The new MAX15038 and MAX15039 from Maxim are small, synchronous DC-DC converters that deliver up to 4 A and 6 A of output current, respectively. Operating from a 500 kHz to 2 MHz switching frequency, ...

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10 A buck converter
19 August 2009, Altron Arrow
Texas Instruments has introduced a fully integrated, 10 A synchronous buck converter with integrated FETs that combines wide input, light load efficiency and reduced solution size to enable increased ...

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Inverter UPSs cover 1 to 3 kVA
19 August 2009
PHD Power has acquired the distributorship for the IV range of inverter UPSs. Traditionally, battery backup systems have come in two basic flavours – UPSs and inverters. While UPSs have the advantage ...

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Compact AC-DC power supplies
19 August 2009, MANTECH
Mornsun’s LH series of compact and cost efficient AC-DC power supply modules is available in 5 W, 10 W, 15 W, 20 W and 25 W power ratings, and are suitable for a variety of applications where high performance ...

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Step-down switching regulator
19 August 2009, NuVision Electronics
Monolithic Power Systems’ MP4560 is a high-frequency step-down switching regulator with integrated internal high side high-voltage power MOSFET. It provides 2 A output with current mode control for fast ...

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20 A digital POL converters
19 August 2009
Power-One has announced two new high-efficiency digital point-of-load (POL) converters, the ZY2120 and ZY8120, in its ZY2000 ‘no-bus’ and ZY8000 'bus-programmable' series, respectively. These Z-One digital ...

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H-bridges for motor control circuits
19 August 2009
A new range of four H-bridge MOSFET packages from Diodes Incorporated has been rolled out to simplify DC motor control circuits, by reducing both component count and PCB size in space constrained fan ...

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Tiny lithium-ion battery charger
19 August 2009, Tempe Technologies
The new SC824 from Semtech is a linear, triple mode, single-cell lithium-ion battery charger in a 10-lead 2 x 2 mm MLPD package for handheld devices. The device has 30 V input voltage protection with ...

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12 V power MOSFET
19 August 2009, EBV Electrolink
Vishay has expanded its family of Gen III TrenchFET power MOSFETs down to 12 V with the release of a new N-channel device offering very low on-resistance and on-resistance times gate charge. The SiR494DP ...

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Plug-and-play IGBT technology
19 August 2009
Cost pressure, reduction of development times and decreased time to market have led to an increased number of standardised parts. Interfacing subsystems forming more complex devices are common among the ...

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Range of battery chargers
19 August 2009, MANTECH
Mantech Electronics is stocking the entire range of Mean Well battery chargers, from 120 W desktop enclosed models to 1000 W panel mounting models. The chargers are available with 90–120 V a.c./180–264 ...

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Energy harvesting powers wireless sensors
19 August 2009, Hi-Q Electronics
Jennic is providing a demonstration platform that successfully harvests thermal, solar, radio frequency (RF) and vibrational energy to power wireless sensor networks based on the IEEE802.15.4 standard ...

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Thermally efficient power brick array
19 August 2009
Vicor has announced the introduction of the new VI Brick BCM Array, a high-efficiency (typically 95%), high-power (up to 650 W), vertically mounted BCM array that provides isolation and conversion from ...

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Converter boosts 0,9 V to 42 V
19 August 2009, NuVision Electronics, ASIC Design Services
New from austriamicrosystems is the AS1344 high-voltage DC-DC boost converter optimised for biasing photodiodes, LCD or PMOLED displays powered by single cell batteries. At 15 V output voltage, the ...

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DIN-rail mountable power supplies
19 August 2009, Communica
The LI24 is a new range of slim power supplies from Mornsun. They feature an AC input range of between 85 and 264 V a.c. and DC input range of 120 to 370 V d.c., with output voltages of 5 V d.c. at 4 ...

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Regulator for lead-acid battery charging
19 August 2009, MANTECH
The PB137 from STMicroelectronics is a positive voltage regulator able to provide 1,5 A at 13,7 V and is intended to function as a charger for lead-acid batteries. Considering that it only requires ...

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Highly integrated Li+ battery monitor
19 August 2009, CST Electronics
Maxim has introduced the DS2741 current monitor/accumulator for cost-sensitive, lithium-ion (Li+) applications. Incorporating a high-side current-sense resistor, this 3 x 3 mm device allows users to connect ...

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Saving electricity costs for lighting
19 August 2009
A South African company called Electro Sense is claiming that it can offer its customers up to 85% on the cost of their electricity used for lighting, and the company is confident enough in its abilities ...

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