Power Electronics / Power Management


Latest Articles

Application-specific diodes give more efficient PFC
30 July 2003, Asset Management
International Rectifier's ETX- and ETL-Series devices are high efficiency diodes for active power factor correction (PFC) in switch mode power supply applications. Power factor correction circuits smooth ...

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Power factor control IC improved
16 July 2003, Electrocomp
Infineon's power factor correction (PFC) control IC, the TDA 4863 is an improved version of the company's active power factor controller TDA 4862. Fully compatible with the world standard, this device ...

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Space-level rated 10 W DC-DC converters
16 July 2003
International Rectifier has introduced a line of 10 W, radiation-hardened, 'off-the-shelf' DC-DC converters. The devices are available either unscreened or screened to Class K per MIL-PRF-38534, simplifying ...

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Power over Ethernet interface controller
16 July 2003
Linear Technology's LTC4257 Power over Ethernet Interface Controller incorporates virtually all the circuitry necessary to connect a powered device to an IEEE 802.3af powered Ethernet network. According ...

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New power ICs and semiconductors enable more efficient and cost-effective power supplies
2 July 2003, Electrocomp
At the PCIM 2003 show in Nuremberg, Infineon Technologies showcased its new family of switched mode power supply power ICs, high-voltage power MOSFETs and IGBTs (insulated gate bipolar transistors), which ...

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Hot-swap 400 W power supply for power-over LAN applications
2 July 2003
Power-One has introduced a powerful AC/DC power supply specifically designed for power-over-LAN applications. The 400 W PALS400 is a fully-enclosed power supply compliant to IEEE 802.3AF and provides ...

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Li-Ion charge controller with full protection
2 July 2003, Hi-Q Electronics
AnalogicTech's AAT3680 device, a linear battery charge controller capable of supporting either a 1-cell or 2-cell (4,2 or 8,4 V) Lithium-Ion or -Polymer pack, supports all charging modes and also provides ...

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DC-DC converter has simple external output control
2 July 2003
Torex Semiconductor introduced the XC9106/07 series of step-up DC-DC converters to help designers reduce PCB real estate requirements and increase power efficiency for the latest generation of battery-powered ...

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USB on-the-go power support ICs
2 July 2003, CST Electronics
Maxim's USB On-The-Go (OTG) power plus support ICs, the MAX3353E/MAX3355E, are suited for portable equipment such as cellular phones, PDAs, and digital cameras. These devices are used in conjunction with ...

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XP is authorised configuration centre for Cosel power supplies
18 June 2003, Vepac Electronics
Power supply specialists, XP, have become Europe's only authorised configuration centre for the Cosel RC series of configurable power supplies. This enables the company to provide 'next day delivery' ...

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Current transducers
18 June 2003, Denver Technical Products
The HX Series current transducer from LEM is the latest product developed to date in the compact and low cost product range for small current measurements. The standard ratings are from 3-20 A. It exists ...

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Flexible power supplies mean smaller medical and broadcast equipment
18 June 2003, Vepac Electronics
XP is offering the RLM, a compact 70-185 W a.c./d.c. power supply with up to four standard and customisable output voltages. Available through local distributor, Vepac Electronics, it is particularly ...

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IGBTs for enhanced variable-speed motor drive performance
18 June 2003
International Rectifier has introduced a new series of 600 V non-punch-through (NPT) IGBTs housed in the TO-220 fully isolated (Full-Pak) package with a guaranteed minimum isolation of 2 kV. The devices ...

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Tiny boost converter reduces circuit footprint
18 June 2003
Linear Technology's LT3460, a high efficiency, 1,3 MHz, constant frequency step-up switching regulator in an SC-70 or ThinSOT package, has an internal 300 mA switch that can deliver output voltages as ...

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Dual, nanopower comparators include 1% reference
18 June 2003, CST Electronics
Maxim's MAX9017-MAX9020 dual, nanopower comparators are packaged in a tiny 8-pin SOT23. These comparators include an on-chip 1,240 V bandgap reference with 1% initial accuracy. Typical quiescent current ...

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Addition to 'energy-saving' power conversion IC range
4 June 2003
Power Integrations has added a lower cost part to its LinkSwitch family, continuing its campaign to replace 'energy vampire' linear transformer chargers and adapters with smaller, more efficient switching ...

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DC-immune current transformers
4 June 2003
The Tae Hwa transformer company of Korea has introduced a range of DC-immune current transformers. This initial range covers values of 20, 40, 60 and 200 A with a linearity of 0,5%. These current transformers ...

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Vicor introduces new power conversion component and power system architecture
4 June 2003
Vicor has introduced a new power system architecture based on an array of proprietary power conversion technologies. According to the manufacturer, the new architecture, called Factorized Power Architecture ...

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High input voltage regulator delivers 3 A peak in very small footprint
4 June 2003
Linear Technology's LT3431, a high voltage constant frequency step-down switching regulator that uses a 3 A internal switch, can operate within a VIN range of 5,5 to 60 V and can deliver up to 2,75 A ...

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A safer UPS with smaller footprint
4 June 2003, Integrated Solutions
With the launch of the Delta III, Meissner has introduced an uninterrupted power supply (UPS), which it claims is safer and has a smaller footprint than most other UPSs on the market. Available in 8, ...

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