Power Electronics / Power Management


Latest Articles

Transformers offer quality and reliability
6 November 2002
ERA's speciality is the automated manufacturing of high quality transformers to meet the specific requirements of its customers. The company offers a wide range of standard transformers with commonly ...

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Snubber capacitors with reliable contacts
6 November 2002
Decades of experience with polypropylene pulse capacitors for any conceivable application are involved in the development of the Wima Snubber MKP and Wima Snubber FKP capacitor series for high power conversion. Wima ...

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Open frame power supplies
6 November 2002
The Traco Power TOL series is a range of high quality open frame AC/DC power supplies with 25 models from 10 to 300 W and output voltages of 5, 12, 24 and 48 V d.c. They feature ultra-compact dimensions ...

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Power measurement transformer
6 November 2002
A new transformer TZ 105V has been developed by Tae Hwa. Designed to meet class 1 requirements, it is ideally suitable for use in high accuracy power measurement, power calibration, energy watt meters ...

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Space saving TO3 heatsinks
6 November 2002, Actum
Aavid offers expandable collar, multiple mounting, high power TO3 heatsinks designed to save space. Series 5791 expandable collar heatsinks have virtually the same footprint as the semiconductor cases ...

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40 V BCDMOS driver interface IC
6 November 2002, Altron Arrow
Atmel has available a new BCDMOS driver interface IC with improved performance features. Optimised for applications in harsh environments, the ATA6822 supports operations up to 40 V. The device is designed ...

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Dual opposing polarity Schottky diodes
6 November 2002, MB Silicon Systems
Central Semiconductor's CMKSH-3DO Dual Opposing Polarity ULTRAmini Schottky Diode in six lead SOT-363 surface mount package consists of two individual galvanically-isolated diodes with opposing polarities. ...

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Battery monitor with hysteresis and micro supervisor
6 November 2002, CST Electronics
Maxim's MAX6439-MAX6442 battery monitors with hysteresis to eliminate low-battery chatter in battery-operated systems feature a microprocessor supervisory reset circuit for monitoring system voltages ...

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AC-DC converter IC set to do away with energy-wasting linear transformer adapters
23 October 2002
What is said to be a revolutionary switching power supply IC, that cost-effectively replaces inefficient linear transformer designs in adapters and battery chargers rated at 3 W and below, has been announced ...

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Converter boosts 3 V to 15 V
23 October 2002
ON Semiconductor's NCP1403 is a monolithic pulse frequency modulation (PFM) step-up DC-DC converter is designed to boost the voltage of a single lithium battery or a two-cell AA or AAA battery up to 15 ...

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Dual DMOS FETs in SOT-26 package
23 October 2002, MB Silicon Systems
Central Semiconductor's CMXDM7002A Dual SUPERmini N-Channel Enhancement-mode DMOS FET is offered in the SOT-26 surface mount package. This device is claimed to offer improved specifications compared to ...

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Three-phase single chip metering IC
23 October 2002
Analog Devices' ADE7752 is a three-phase electrical energy metering IC with watt-hour output. Compatible with a wide range of three-phase grid configurations including direct connect and transformer operated, ...

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25 W power supply modules
9 October 2002, Sivan Electronic Supplies
Sunpower's SPS-025 series of 25 W single output power supply modules offer the following features: universal full range AC input; over-load, over-voltage and short circuit protection; over temperature ...

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Small bridge rectifier for up to 250 V
9 October 2002, Electrocomp
Diotec's MicroDIL MYS 40-250 series are claimed to be the smallest bridge rectifier in their class. Rated for currents 0,5 A and input voltage to 250 Veff, the MYS series has a case dimension of only ...

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Small all-ceramic low noise regulator
9 October 2002, CST Electronics
Maxim's MAX1973 and MAX1974 are 1 A step-down regulators for network and telecoms. Each device operates at a constant 1,4 MHz switching frequency over the load range and minimises noise interference. ...

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Low-voltage ICs for portable power
9 October 2002, Altron Arrow, EBV Electrolink
National Semiconductor offers a series of CMOS power management ICs. They include the LM2608, LM2614 and LM2618 magnetic buck DC/DC converters and LM2788 and LM2798 switched capacitor buck converters. ...

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Transformer for high accuracy power measurement calibration
25 September 2002
A new transformer TZ 105V has been developed by Tae Hwa. Designed to meet class 1 requirements, it is ideally suitable for use in high accuracy power measurement, power calibration, energy watt meters ...

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Low noise, low-dropout regulator requires no capacitor
10 September 2002
Philips Semiconductors' CapFREE SA57000 is part of a series of low-noise, low-dropout regulators. While other devices may appear to be capacitor-free, most have restrictions on capacitive load and require ...

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Hot swap controller with multiple-level control
10 September 2002
Linear Technology's LTC4210, in 6-pin SOT-23 package, is a hot-swap controller that provides active current limiting for over-current transients and latches off an external N-channel MOSFET during short-circuit ...

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Power MOSFETs' current capability increased by 30%
28 August 2002
International Rectifier has introduced 100 V, IRFB4710 and IRFS4710 HEXFET power MOSFETs that it says increase power density in 48 V input, half or full-bridge topologies used in the high performance ...

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