Power Electronics / Power Management


Latest Articles

600 mA DC-DC stepdown converters for portable consumer electronics
28 June 2006
The NCP1521 and NCP1522 are 600 mA DC-DC stepdown converters from ON Semiconductor, optimised for portable applications powered from one cell Li-ion or three cell alkaline/NiCd/ NiMH batteries. The ...

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PCB series, 60 W power supplies for medical/industrial uses
28 June 2006, Current Automation
Mean Well has launched its first 4" x 2" (102 x 51 mm) PCB-type switching power supply - the RPS/D/T-60 series - which targets medical and IT applications with miniature size requirements. The 5" x ...

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Very small DC-DC converter supports demanding load swings
28 June 2006, Hi-Q Electronics
Designers of portable devices continue to expand their feature set and in the process move to higher performance processors that demand increased levels of power. By mounting an 800 mA DC-DC converter ...

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300 VIN high-density DC-DC converters added to range
28 June 2006
Vicor has added seven mid-power Micro DC-DC converters to its high-density 300 V d.c. input family: two 50 W models, one at 3,3 Vout and 5 Vout, and five 75 W models at 12, 15, 24, 28, and 48 Vout. The ...

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Chargers for lead-acid batteries have 'intelligent' operation
28 June 2006, Current Automation
Mean Well has launched two new product series in its AC/DC charger line. The PB-300 and PB-360 are 300 W and 360 W battery chargers for lead-acid batteries. Featuring optimal 3-stage charging characteristics ...

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Ultrafast rectifiers reduce power losses
28 June 2006
Vishay Intertechnology has added a pair of new ultrafast rectifier devices to its range that have extremely fast reverse and forward recovery times and low forward voltage drop. The new 8 A, 600 V UH8JT ...

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Lithium polymer rechargeable batteries are energy dense yet safe
14 June 2006, Altron Arrow
Across the world, today's consumer electronics market is moving towards the development of portable miniature digital devices such as Bluetooth wireless headsets, MP3 players and other mobile electronic ...

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The switching power supply: a primer
31 May 2006, Current Automation
The switching power supply has replaced the linear power supply gradually. It is widely used in all kinds of electronic equipment, including module type sources, driver type sources, UPS and battery chargers. ...

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Range of bench power supplies for various applications
31 May 2006, Test & Measurement Instruments (TMI)
Test & Measurement Instruments, which has specialised in test instruments for over 20 years, carries a large variety of reliable laboratory bench type power supplies. These include: single, dual or triple ...

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Tiny step-down converter with I²C enables dynamic voltage scaling
31 May 2006, Altron Arrow
Texas Instruments has developed a tiny, high-performance power conversion IC to work in tandem with processing platforms that use the company's SmartReflex power and performance management technologies. ...

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Dual-output boost converters for OLED and white LED displays
31 May 2006, Altron Arrow
Texas Instruments has introduced two new high-efficiency, dual-output DC-DC boost converters that can manage two sets of six white light-emitting diodes (LEDs) - all from a single IC with an inductor. ...

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Hybrid emitter-switched transistor reduces power dissipation
31 May 2006
STMicroelectronics hybrid emitter-switched bipolar transistor (ESBT) is designed for use in welding equipment, induction heating systems and power factor correction for audio amplifiers. The STE50DE100 ...

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96% efficient DC-DC chip operates over a wide input down to 1,8 V
31 May 2006, Altron Arrow
Texas Instruments has released a buck-boost power management integrated circuit that helps extend battery life in smart phones, digital still cameras and other single-cell, Li-Ion powered multimedia devices. ...

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Driving IGBTs with unipolar gate voltage
31 May 2006
Infineon recommends the use of negative gate voltage to safely turn-off and block IGBT modules. In areas with nominal currents less than 100 A, the negative gate voltage is often omitted for cost reasons. ...

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DC-DC converter has wide input voltage range
31 May 2006
Adequate Energy, a Cape Town-based electronics power development company, has released a compact 15 A DC-DC converter that has what it claims, one of the widest input voltage ranges and an efficiency ...

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Secured input and output voltages - redundancy without compromise
31 May 2006, Actum
The subject of 'redundancy' is on everyone's lips, as high availability is a must for more and more applications. However, with the redundant power supply it was mostly the output that was of interest, ...

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Solar power pack for the home and professional user
31 May 2006
Sinetech has launched a pre-wired power pack - called 'The Sun Box' - that is available in a variety of configurations to suit the needs for a remote-powered application. It is intended for the more sophisticated ...

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Power pack for the home/small business user promises long backup time
31 May 2006
Sinetech has launched a 'Home UPS' standby system. Available in a variety of configurations to suit the needs of the home user, retail or small business application, it provides an AC power back-up capability ...

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Power system for low voltage military, avionics, and space applications said to be most efficient
31 May 2006, Eagle Africa Technology
A new power system, claimed to be the most efficient DC-DC distributed standard power solution available to satisfy the unique requirements of military, avionics, and space applications, is available ...

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Data centre power supply guaranteed with modular UPS system
31 May 2006, Rittal
The availability of systems and the reliability of data centres are a deciding factor for the efficiency and productivity of business processes. Rittal claims its UPS system power modular concept (PMC) ...

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