Power Electronics / Power Management


Latest Articles

Power system transient load management by design
28 May 2008
As operating frequencies of equipment continue to increase, dynamic loads become increasingly important. Transient response – the ability of the power converter to respond to a change in the load requirement ...

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The future of energy harvesting technologies
28 May 2008
The need to minimise maintenance and replacement costs of battery-powered applications is driving developments in energy harvesting technologies that bind renewable and ambient sources of energy. New ...

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Meissner's UPS upgrade at Megawatt Park
28 May 2008
Meissner recently completed a project in which it was appointed by Eskom to supply uninterruptible power supplies (UPSs) to the power utility’s Megawatt Park facility. The project involved the replacement ...

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Low-loss, high-saturation SMT power inductor
28 May 2008
Pulse has introduced the new PG0702NL series of flat-coil surface mount (SMT) power inductors. These inductors have a low DCR of 0,89 to 5,9 mΩ and a tight tolerance of ±6% for high efficiency. Inductance ...

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Multi-output programmable power supply system
28 May 2008, Sivan Electronic Supplies
The Testron 2400 modular power supply system allows a combination of high and low power modules in the same ATE environment, providing a true single-box solution, saving space and money. Each 19" by ...

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Considerations for series connection of IGBT and MOSFET switches
28 May 2008
Figure 1 shows the typical RC snubber networks for voltage sharing for switches (S) connected in series in a capacitive discharge circuit. A static voltage sharing resistor RS is required so that the ...

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Triple-output step-down switching regulator
28 May 2008, Altron Arrow
Allegro Microsystems has developed a new triple-output step-down switching regulator. The A4490 provides three high-current, adjustable, high-performance switching regulator outputs with an input voltage ...

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Single-chip energy metering devices
28 May 2008
Analog Devices is expanding its portfolio of energy metering solutions with the ADE51xx and ADE55xx single-chip metering devices, which are designed for the increasingly sophisticated communications networks ...

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Toyota plant turns to solar power
28 May 2008
Companies with large industrial plants will benefit from finding alternative energy resources in the face of Eskom's major power shortage. The electricity service provider has requested a reduction in ...

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32 V buck regulator with integrated dual power monitor
28 May 2008, NuVision Electronics
austriamicrosystems has expanded its DC-DC converter portfolio with the AS7620, an hysteretic, high efficiency 32 V step-down regulator in a small 4 x 4 mm MLPQ 12-pin package. Ideally suited to maximise ...

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Absa resorts to UPS for its ATMs
28 May 2008
Absa and Bytes Specialised Solutions (Bytes SS) have jointly developed an uninterrupted power supply unit which guarantees power supply to ATMs during power outages. An initial roll-out of approximately ...

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Grinpal launches energy metering project in India
28 May 2008
Saab Grintek's integrated energy supply subsidiary, Grinpal Energy Management, has started with the installation of the first Smart Meters AMR (Automotive Meter Reading) in New Delhi, India. The first ...

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USB battery charger detectors
28 May 2008, Altron Arrow
NXP Semiconductors recently announced the availability of USB battery charger detection solutions for mobile phones. The ISP1704 and ISP1601 are capable of detecting and differentiating between a dedicated ...

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Miniature module-type DC-DC converters
28 May 2008, Current Automation
Mean Well has announced the introduction of 12 W regulated single- and dual-output DC-DC converters for the growing demands of low cost and miniature size applications. With DIP packaging, the SCW12 and ...

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40 V n-channel MOSFETs
28 May 2008
Infineon has expanded its extensive OptiMOS 3 n-channel MOSFET portfolio with new 40 V devices which offer features such as low on-state resistance for reduced conduction losses and a high Figure-of-Merit ...

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Half-bridge 600 V and 1200 V IGBT modules
28 May 2008, EBV Electrolink
Vishay launched a new series of half-bridge insulated-gate bipolar transistors (IGBT) in the industry-standard Int-A-Pak package. The series consists of eight 600 V and 1200 V devices that offer a variety ...

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Precison AC voltage stabilisers
28 May 2008, Denver Technical Products
Denver Technical Products has established a relationship with Claude Lyons of the UK, manufacturers of precision AC voltage stabilisers and mains power correction products. Initially Denver will be promoting ...

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Power supplies employ selective fuse breaking
14 May 2008, Phoenix Contact
Quint Power compact power supplies from Phoenix Contact are now equipped with selective fuse breaking (SFB) technology. In order to trigger standard circuit breakers magnetically and thus within a few ...

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1000 W intelligent battery charger
14 May 2008, Current Automation
Mean Well has introduced the new PB-1000 series of 1000 W intelligent AC-DC battery chargers for lead-acid batteries. Featuring user-selectable 2-stage/8-stage charging characteristics, this charger, ...

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Triacs allow high junction temperatures
14 May 2008
STMicroelectronics has announced a new series of high-temperature triacs, which maintain full specified performance up to a junction temperature of 150°C, and which deliver outstanding turn-off capability ...

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