Power Electronics / Power Management


Latest Articles

Three-way dimming approach for compact fluorescents
5 November 2003
International Rectifier has introduced a new approach to three-way dimming systems that are in widespread use in hotels and residential applications. Currently, most three-way dimming systems are compatible ...

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Compact power for Compact PCI
5 November 2003, Vepac Electronics
Designed to meet the requirements of Compact PCI, using hot-swappable N+1 redundancy power systems, the new RTC AC/DC and DC/DC switching power supplies from XP offer power ratings of 150, 200 and 400 ...

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Advanced lithium ion battery charger features µP status interface
5 November 2003, Hi-Q Electronics
Charging Lithium Ion (or Polymer) batteries can be a hazardous and difficult challenge. At any time during the battery's discharge cycle, a charger may be applied and unless the correct method and level ...

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Switched capacitor voltage converters and inverters
5 November 2003
Analog Devices' ADM660/ADM8660 are high current CMOS switched capacitor voltage converter ICs and the ADM8828/ADM8829 are switched capacitor voltage inverter ICs with shutdown. The ADM660/ADM8660 invert ...

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Dual output PWM controller has integrated overcurrent protection and LDO controller
5 November 2003
International Rectifier has introduced the IRU3073 controller IC designed for dual output high performance DC-DC converters. This versatile device is designed for a wide range of compact, high performance ...

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New class of handheld power quality analysis tools
5 November 2003, Denver Technical Products
LEM has introduced the Analyst Q70 handheld power quality analyser, which offers a comprehensive range of measurements to help to track down the increasing number of power quality problems on single-phase ...

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3 kW AC/AC converter with PFC
5 November 2003
The modular 3000 W RPF5 can be configured to provide one to 15 outputs from 1 to 48 V. Features include a comprehensive array of interface signals, extensive input transient protection, and parallelable ...

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Modular current transducers for railway applications
5 November 2003, Denver Technical Products
LEM has strengthened its range of current transducers for railway applications with the introduction of the LTC family. The first members of the family, the LTC 600 and 1000-S, are intended for 500 and ...

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Battery gas gauge
5 November 2003, News & Events
A bi-directional Coulomb counter designed to accurately measure battery capacity in handheld PC and portable products, requires only an external sense resistor and a filter capacitor. Linear Technology's ...

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Switching controller has wide input range
5 November 2003, Altron Arrow
National Semiconductor's high-voltage, two-phase synchronous switching controller is tailored for power supply designs for communications, industrial and automotive applications. The LM5642 has a wide ...

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DC-DC converter without heatsink
22 October 2003, Sivan Electronic Supplies, Products & Solutions
Cosel's new compact 'brick size' DC-DC converters, which have been the standard size for the telecommunications market, are claimed to have high efficiency and high density. They are also designed for ...

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'Intelligent' power switches for automotive applications
22 October 2003, Integrated Solutions
Three new high-side intelligent power switches from International Rectifier feature accurate high frequency current sensing and built-in protection circuits for 14 V automotive applications. The IR3310, ...

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1 A converter small and efficient
22 October 2003, Hi-Q Electronics
Advanced Analogic Technologies' synchronous buck DC-DC converter delivers a 1 A output current, operates at a high 1 MHz switching frequency and using synchronous rectification, combines small size and ...

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Adjustable battery monitor ICs with hysteresis and µP supervisor
8 October 2003, CST Electronics
Maxim's MAX6846-MAX6849 are adjustable single-/dual-level battery monitors combined with independent microprocessor supervisory reset circuits. These devices monitor single lithium-ion (Li+) cell or multicell ...

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1,5 A step-down switching regulator has only 100 µA quiescent current
8 October 2003
Linear Technology's LT1976EFE is a high voltage step-down switching regulator with Burst Mode operation that keeps quiescent current under 100 µA. The LT1976 operates within a V(IN) range of 3,3 to ...

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Five flexible outputs from new 130 W power supplies
8 October 2003, Vepac Electronics
The JPP series of 130 W AC/DC switching power supplies from XP not only offers high power density at 118 W/cm3 but comes in a choice of 24 models with between two and five outputs. With ultra-wide output ...

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Open-frame DC-DC converters
8 October 2003, Sivan Electronic Supplies
Cosel has launched four new open-frame (with no heatsink), isolated, DC-DC converters suitable for computer and communication equipment applications. The new CES, CQS, CQB and SFS Series DC-DC power modules ...

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Logic to power interface ICs
8 October 2003
Allegro MicroSystems' UDN2987A and UDN2987LW are 8-channel source driver ICs designed to act as an interface between standard low-level logic and power devices such as relays, motors, solenoids, LEDs, ...

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ICs maximise battery use
8 October 2003, Tempe Technologies
A family of single and dual cell Lithium-Ion and Lithium-Polymer charge-management controllers from Microchip offer an industry-leading voltage regulation accuracy of ±0,5%. The MCP7384x series combines ...

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Isolated dual output 100 W DC/DC controller IC comes with integrated opto drive
24 September 2003, Products & Solutions
Linear Technology's LT3804, a secondary side DC/DC regulator with integrated optocoupler driver for dual output isolated power supplies, is ideal for converting 36 to 72 V supplies to output voltages ...

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