Power Electronics / Power Management


Latest Articles

High-power density, low-profile power supply range expanded
26 September 2001
Westcor, a division of Vicor, has introduced two new members of its LoPAC series of low-profile AC-DC switchers. In addition to the PFC Mini, now there are the PFC MicroS and the PFC Micro. The PFC MicroS, ...

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PWM-optimised power MOSFETs
26 September 2001
Two Littlefoot power MOSFETs for DC-DC converter circuits, including the industry's first PWM-optimised n-channel device with a 12 V maximum breakdown voltage rating, have been released by Siliconix, ...

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Super-rugged RF power MOSFETs operate up to 65 V
12 September 2001, EBV Electrolink
Advanced Power Technology has added the ARF462 and ARF464 to its family of super-rugged high voltage RF power MOSFETs. Both devices operate to DC voltages up to 65 V. The ARF462 delivers 150 W of CW output ...

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Ultralow-voltage µP supervisory circuits
29 August 2001, Altron Arrow
The Maxim MAX6821-MAX6825 microprocessor (µP) supervisory circuits offer reset thresholds capable of monitoring system voltages from +1,8 to +5,0 V. Whenever a supply voltage falls below the reset threshold, ...

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10 A uninterruptible 12/24 V power supply
15 August 2001, Retron
The Accupack LDR8012 and LDR8024 from Feas Elektronik are DC power units that are connected between line voltage and equipment. In the event of a mains power failure, on-board sealed lead-acid batteries ...

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High-speed, high-input voltage telecom DC-DC controllers
15 August 2001, MB Silicon Systems
Micrel's MIC9130 and MIC9131 DC-DC controllers convert telecom line voltages to logic levels. The MIC9130/1 feature built-in high-voltage start-up circuitry that allows the devices to be connected directly ...

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SOT23 power-supply sequencers
29 August 2001, Altron Arrow
The Maxim MAX6819/MAX6820 power-supply sequencers are designed for dual-voltage processors and multivoltage systems. These devices monitor a primary supply voltage to enable or disable an external N-channel ...

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Power supplies
29 August 2001, Retron
The Murrelektronik MEN nonregulated, single-phase power supply units are designed to EN 61558. They are touch-protected to VBG4 and equipped with a secured low voltage (SELV). Suitable for use almost ...

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Ideas for design - digital/analog hybrid circuit calculates battery life expectancy
18 July 2001
The convenience and reliability of portable electronic devices depend on efficient management of batteries and their limitations. One universal, not to mention irritating, limitation of all (chemical) ...

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New generation of power supplies will be needed for mobile market
18 July 2001
While the whole world awaits more advanced mobile Internet devices to come into the marketplace, it is a new generation of power supplies that will allow these devices to be as useful as imagined. According ...

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Clip-on heatsinks
18 July 2001, Actum
In keeping with its policy of designing timesaver heatsinks, Aavid Engineering has introduced its 5768 Series clip-on heatsink for TO220 package devices. This unique plug-in heatsink has four spring-action ...

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Integrated solution reduces design time for ballasts
18 July 2001
International Rectifier has released its new IRPLDIM2 digital addressable dimming ballast reference design that allows manufacturers to deliver digital addressable ballasts to market quickly by providing ...

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1,2 V regulator controls power-up sequencing in microprocessors
18 July 2001, MB Silicon Systems
Micrel Semiconductor is offering a tiny, low-voltage regulator for power-up sequencing in microprocessors. Capable of providing up to 150 mA, the new MIC5248 is equipped with a power-good output that ...

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Power management and control devices
18 July 2001
Philips Semiconductors' power management portfolio covers a broad range of types of products. Some key families in its extensive high efficiency power conversion range are described below. Key families ...

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Smoothing harmonics - roads to compliance with EN 61000-3-2
18 July 2001, Electrocomp
In recent years, the number of electronic loads using power supplies with rectifiers has risen in leaps and bounds. The resulting extreme distortion of the AC line current by harmonics ultimately led ...

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New power semiconductor package
18 July 2001
Ixys offers a new package for power semiconductors. The very flat ECO-PAC package (at 9 mm high) enables compact design and economical system solutions to be developed. It offers a wide choice of circuit ...

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Energy saving device for lamps launched
18 July 2001
Philips Lighting has launched the latest in energy saving technology onto the SA market. The Philips TRIOS Luxsense is a light sensing device, which is meant to be integrated into 'down-lighting' luminaires, ...

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Low dropout regulators deliver more power to the portable world
4 July 2001
Today's increasingly portable world is calling for new ways to regulate voltage while meeting space and high-volume cost demands. The answer, says Analog Devices, lies in its line of anyCAP low dropout ...

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DC-DC converter programmable via SMBus/I2C
20 June 2001
Linear Technology's LTC1699 is a variable resistor divider with +0,35% accuracy, and software programmed through a 2-wire SMBus or I2C interface. It provides the flexibility to digitally set the output ...

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High speed P-channel MOSFET driver
20 June 2001
Linear Technology's LTC1693-5 MOSFET driver/buffer is designed to drive P-channel power MOSFETs at very high speeds. The 1,5 A peak output current and low switching delay reduces switching losses of high ...

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