Power Electronics / Power Management


Latest Articles

Universally compatible ripple attenuation module
6 November 2002
Vicor's MicroRAM output ripple attenuation module combines both active and passive filtering to provide >40 dB conducted differential noise attenuation from 60 Hz to 1 MHz. This makes it suitable for ...

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Protection current transformers
6 November 2002
A range of current transformers for Class 2 applications is available through local company Hillcor Holdings. Manufactured by Tae Hwa, the range covers from 10 to 100 A rated current. Applications are: ...

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Metallised film power capacitors
6 November 2002
Vishay's Model GLI metallised film power capacitors have extremely low losses (also at high frequencies) and very low stray inductance. With polypropylene dielectric, temperature coefficient is 2,3% from ...

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CompactPCI power supply
6 November 2002
The four-output CPA (AC/DC) and CPD (DC/DC) series from Power-One provides up to 40 A of +5 V or +3,3 V, in a CompactPCI compatible package by using Power-One's patented efficient dual geometric edge ...

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PCB-mount current transformer
6 November 2002
Tae Hwa has introduced a full PCB-mounting current transformer (CT), designated the TC 151. This CT is rated for 20 A. With the primary output being a composite part of the unit, the need for a separate ...

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Advanced inverter supplies up to 160 kW
6 November 2002
Omron's new advanced 3G3RV inverter is useful in many typical applications like handling, hoisting, conveyors, cranes, fans and pumps and many others. This is a general purpose drive, suitable for constant ...

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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 Electronics
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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