Power Electronics / Power Management


Latest Articles

High linearity 1 Watt power amplifiers
6 February 2008, RF Design
The CE series of 1 Watt power amplifiers from RFHIC is designed to provide high efficiency, high linearity and high output power with no external matching circuit required. The amplifiers are optimised ...

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30 W power source for LED lighting
6 February 2008, Current Automation
Mean Well has launched a 30 W a.c.-d.c. enclosed type switching power supply designed specifically to power LED lighting systems. Targeting economical lighting applications, the ELN-30 has a non-power-factor-corrected ...

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Highly efficient DC-DC regulator
6 February 2008, ASIC Design Services, NuVision Electronics
austriamicrosystems' DC-DC converter portfolio has been expanded with the introduction of the AS1341, an hysteretic 20 V step-down regulator in a small 3 x 3 mm TDFN 8-pin package. The regulator delivers ...

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Chargers feature auto-power-source selection
6 February 2008
Microchip has introduced the MCP73837 and MCP73838 dual-input, high-current Li-Ion/Li-Polymer charge-management controllers with automatic USB or AC adapter power-source selection. The USB charge currents ...

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Bridging the power rails
23 January 2008, CST Electronics, Electrocomp, Altron Arrow, Tempe Technologies
From the early days, the mantra for the semiconductor industry has been ‘smaller, better, faster and cheaper’. The current Pocket PCs are more powerful than the first computer, which required a separate ...

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Low power, tiny voltage references
23 January 2008
Texas Instruments has introduced a family of low-power (5 μA), series voltage references featuring high accuracy of ±0,15% and low temperature drift of 30 ppm/°C. The combination of the small SC70-3 packaging ...

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Power supply incorporates PFC
23 January 2008
Vicor’s PFC FlatPAC uses field-proven VI-HAM and Maxi DC-DC converters to deliver up to 575 W of clean, reliable power. It is a single-output power supply available with standard output voltages from ...

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New series of 1000 W DC-DC converters
23 January 2008, Current Automation
New from Mean Well is the SD-1000 series of 1000 W enclosed type DC-DC converters, expanding the company's SD product lines to a higher wattage range for the growing demand of high wattage DC-DC applications. ...

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Ultra low-noise LDO
23 January 2008, ASIC Design Services, NuVision Electronics
The new AS1358/59/61/62 family of low dropout regulators (LDOs) from austriamicrosystems is optimised to deliver excellent noise performance of less than 9 μVRMS and up to 92 dB PSRR (@ 1 kHz). Operating ...

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Accurate current measurement at low cost
23 January 2008, Altron Arrow
Zetex Semiconductors has developed a low cost current monitor producing a current output signal with an accuracy as high as 1%. Housed in the 5-pin SOT23 package and with a wide 2,5 V to 20 V common mode ...

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DC-DC regulators boast small footprint
23 January 2008
Targeting the market for high density, high performance data centre and consumer applications, International Rectifier has introduced the SupIRBuck family of single output synchronous buck voltage regulators. ...

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Compact DC-DC converters
23 January 2008, Vepac Electronics
XP Power has released a new family of miniature, board-mounted, low power DC-DC converters. Measuring just 25,4 x 20,3 x 10,0 mm, the JCA series’ shielded metal package, combined with the industry-standard ...

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High accuracy low-dropout regulator
28 November 2007, Altron Arrow, EBV Electrolink
ON Semiconductor has introduced the NCP590 family of high-precision, dual-output CMOS low dropout regulators (LDO). Offered in an ultra-small, low profile package, these devices are suitable for battery ...

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320 W AC-DC power supplies in multiple mechanical formats
28 November 2007, Vepac Electronics
XP Power's SDC320 AC-DC power supply offers a choice of four formats, two using convection cooling or system airflow and two with internal fan cooling. The compact 320 W unit, measuring just 101,6 x 152,4 ...

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First clamping diode available in small SMA package
28 November 2007
The new SMA6J from STMicroelectronics is a 600 W peak-pulse-power clamping diode, capable of operating at up to 175°C junction temperature, and said to be the first 600 W 10/1000-microsecond device in ...

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High-speed PWM ideal for battery charging
28 November 2007, Tempe Technologies, Altron Arrow, CST Electronics, Electrocomp
New from Microchip is the MCP1631 2,0 MHz, high-speed pulse width modulator (PWM). The MCP1631 provides a means to close the feedback loop in switch-mode power supplies (SMPSs) that use microcontrollers ...

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Highly power-efficient integrated FET buck regulator
28 November 2007, Altron Arrow
Intersil's ISL8009 is a high-efficiency, 1,5 A synchronous buck integrated FET regulator suitable for point-of-load regulation for datacom/telecom, battery powered systems, medical instrumentation and ...

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3-phase gate drivers integrate bootstrap functionality
28 November 2007
International Rectifier has introduced the IRS2336xD protected 600 V three-phase gate driver ICs with integrated bootstrap functionality for appliance motor control, servo drives, micro-inverter drives ...

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Fully integrated reference platform for brushless motors
14 November 2007, EBV Electrolink
Electronic motor controls for brushless motors offer developers enormous potential as electronically commutated brushless motors open up new areas of possibilities, which include significant energy savings, ...

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Step-down converters deliver high efficiency and low noise
14 November 2007, Hi-Q Electronics
Advanced Analogic Technologies has announced the first in a family of switching regulators designed for low-noise operation. Based on an innovative new (patent-pending) architecture, the AAT2120 and AAT2158 ...

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