Power Electronics / Power Management


Latest Articles

Flyback controller
2 February 2011, EBV Electrolink
The UCC24610 ‘Green Rectifier’ from Texas Instruments is a new power management controller and driver for standard and logic-level N-channel MOSFETs used for low-voltage, secondary-side synchronous rectification. ...

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A two-stage approach to DC-DC converters with super-wide input range
2 February 2011
One of the parameters of an isolated DC-DC converter is the range of the input voltage over which the converter can operate. For the industry-standard ‘bricks’ available for the nominal 48 V input ...

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Midspan PoE injector
2 February 2011, Altron Arrow
Phihong has expanded its passive power-over-Ethernet (PoE) injector lineup to include a low-cost 60 W midspan. Passive power injectors are for dedicated situations where there is no chance that a non-PoE ...

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Dual-output LDOs
2 February 2011
Characterised by low dropout voltage and low quiescent current, the latest linear regulators from Diodes Incorporated suit low-power handheld product design where extending battery life is a key design ...

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150 W LED power supply
2 February 2011, Current Automation
New from Mean Well is a 150 W AC/DC U-bracket type LED power supply with constant-voltage design and 90–295 V a.c. input range. Built-in active power factor correction enables it to meet the norms of ...

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100 W and 150 W PCB power supplies
2 February 2011, Vepac Electronics
The new devices combine high efficiency even at low load conditions, with a wide operating temperature range, small size and 10-year electrolytic capacitor life. Boasting features such as active power ...

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Lab power supply
2 February 2011, MANTECH
The SSP-7080 from Manson is a standalone, wide-range benchtop laboratory power supply with dynamic power factor correction. It has three selectable voltage/current ranges with fine adjustment: 0–16 V ...

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Filters for Vicor's VI BRICK
2 February 2011
Newly released by Vicor is the MIL-COTS VI BRICK Filter, available as a standalone filter or integrated with the PRM regulator module. The integrated filter is an efficient (~95%) non-isolated regulator ...

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PFC rectifiers
2 February 2011, EBV Electrolink
The new 600 V, 8 A devices feature an ultra-low typical voltage drop of 1 V at rated current, fast recovery times as low as 16 ns in hard switching conditions, and typical leakage current at 125°C as ...

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Energy metering chip
19 January 2011, Altron Arrow
NXP Semiconductors has rolled out the EM773 energy metering IC – the world‘s first 32-bit ARM-based solution designed specifically for non-billing electricity metering applications. The chip takes energy ...

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Considerations for coin cell-powered wireless devices
19 January 2011, Altron Arrow
When designing a small wireless sensor node to be powered by the popular CR2032 coin cell, some sources claim there is a 15 mA ‘limit’ and that drawing more current is not possible or will damage the ...

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Mat charges mobile devices wirelessly
19 January 2011
Platinum Micro, appointed the sole South African distributor for the Powermat wireless charging device, recently launched the charger to major retail organisations. The Powermat consists of a charging ...

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Low dropout regulators
19 January 2011
A pair of low dropout linear regulators with industrial temperature rating of –40°C to +85°C has been introduced by Diodes Incorporated. Suiting applications including set-top boxes, routers and LCD ...

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200 W power supplies
19 January 2011, Accutronics, Vepac Electronics
TDK-Lambda has added a 200 W model to its single-output LS series of general purpose power supplies, with models now covering from 25 W up to 200 W. The LS200 is targeted at budget conscious applications ...

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New package enhances MOSFET power dissipation
19 January 2011, EBV Electrolink
As DC-DC applications such as power modules, telecommunications and servers become more space-constrained, designers are looking for smaller devices to meet their design challenges. The thermal capability ...

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P-channel power MOSFETs
19 January 2011, Future Electronics
International Rectifier has introduced a new family of -30 V devices featuring IR’s latest P-channel MOSFET silicon in an SO-8 package for battery charge and discharge switches, and system/load switches ...

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Improve power converter reliability using hiccup-mode current limiting
24 November 2010, Altron Arrow
Switch-mode power supplies employ various schemes to protect themselves and, ideally, the load, in overload conditions. Depending on whether the power converter automatically recovers and reverts back ...

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Baseplate-cooled power supplies
24 November 2010, Vepac Electronics
TDK-Lambda has launched the CPFE500 range of baseplate-cooled power supplies capable of providing 500 W without the need for fan cooling. With an extended temperature range (-40°C to +85°C) this range ...

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SOT-23 power MOSFETs
24 November 2010, Future Electronics
International Rectifier’s latest family of HEXFET power MOSFETs feature low on-state resistance (RDS(on)) in an industry-standard SOT-23 package for applications including battery charge and discharge ...

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Front-end DC-DC power supply
24 November 2010, MB Silicon Systems
Power-One announced the availability of its SFD1200-12BG front-end DC-DC power supply. This 1200 W product provides a 12 V d.c., 99,2 A maximum rated output and features efficiencies up to 91% from a ...

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