Power Electronics / Power Management


Latest Articles

Power supply units are extra slim
23 February 2005, Phoenix Contact
Two members of the Mini Power product family from Phoenix Contact now expand the performance range of its compact power supply units up to 100 W. Available with widths of 22,5, 45 and 67,5 mm, they have ...

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Solutions for magnetic designs
23 February 2005
Kaschke is celebrating its 50th year in providing 'magnetic solutions' to all walks of industry. Expertise from its magnetic solutions focus has gained trading partners with many leading brands in automotive, ...

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Small inductors for DC-DC converters
23 February 2005
Murata has developed a new wire-wound choke inductor that combines a wide inductance range with a low profile dimension. Maximum profile height is only 0,95 mm, allowing manufacturers of DC-DC converters ...

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Digital temperature sensors displacing thermistors
23 February 2005
IC temperature sensors are quickly replacing thermistors as the preferred method of temperature monitoring for many mainstream applications. Thermistors have long been favoured for their very small form ...

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High-input-voltage linear regulators
23 February 2005, CST Electronics, Electrocomp
Maxim offers small, high-input-voltage linear regulators that supply always-on, keep-alive power to CMOS RAM, realtime clocks (RTC), and microcontrollers in systems with high-voltage batteries. They draw ...

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Spark gaps
23 February 2005, Denver Technical Products
e2v Technologies manufactures glass and metal ceramic spark gaps for voltage surge protection and high energy switching. Typical applications include ignition circuits, crowbar protection, over-voltage ...

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Mosfets tailored for Class D audio power amps
23 February 2005
International Rectifier has introduced the IRF6665 DirectFET mosfet for medium power Class D audio amplifiers. These devices have parameters tuned specifically for improved audio ...

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Open-loop current transducers
23 February 2005, Denver Technical Products
LEM has introduced a new family of current transducers based on ASIC technology that it says is highly cost-effective. Designated, the HAIS, HXS and HTFS family, there is a transducer suitable to measure ...

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PWM controller and driver designed for POL converters
23 February 2005
A new pulse width modulated (PWM) dual synchronous buck controller with driver IC for point-of-load (POL) buck converters is available from International Rectifier. Typical applications include dual phase ...

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Step-up DC/DC controller without transformers is 96% efficient
23 February 2005
The LT3782 is a step-up DC/DC controller with 2-phase operation to deliver high output power using only two inductors, eliminating the need for power and current sense transformers. This device from Linear ...

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Precision voltage references use extremely low power
9 February 2005
Intersil has released the ISL60002 series, which are 1,25 V and 2,5 V additions to its rapidly expanding line of low power precision voltage references. These ICs bring the precision performance standards ...

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New Schottkys said to outperform traditional Ultrafast rectifiers
9 February 2005
ON Semiconductor has pushed the Schottky voltage barrier above 200 V with the introduction at the recent Power Electronics Technology Conference, of the first 250 V silicon Schottky for plasma/LCD television, ...

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High-current MOSFETs in D2Pak
9 February 2005
International Rectifier has introduced a pair of 55 V rated Q101-qualified automotive HEXFET power MOSFETs rated for continuous duty in the D2Pak outline. The 55V devices are designed to increase safety ...

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Highly integrated buck regulator
26 January 2005, Altron Arrow, Residential Estate (Industry)
The LM5010 is a 75 V buck regulator IC with all the functions needed to implement an efficient power management solution capable of supplying in excess of 1 A load current says manufacturer National Semiconductor...

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100 A in a standard quarter-brick package
26 January 2005, Surveillance
New high performance DC-DC converters that conform to the industry-standard quarter-brick footprint and pin outs, have been announced by Vicor. Said to leapfrog existing ¼-brick offerings in the areas ...

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Fin-type cooling solution
26 January 2005, Retron
The complexity of electronic components increases every day. This results in ever higher cooling requirements. Seifert Electronic now offers an optimum solution that enables the design engineer to realise ...

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Rad-hard MOSFETs improve efficiency
26 January 2005
Two new radiation-hardened logic-level gate drive MOSFETs designed to boost efficiency and performance in circuits that traditionally relied on bipolar transistors, the IRHLUB7970Z4 and IRHLUB770Z4 have ...

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Power meter system-on-chip
26 January 2005, Electrocomp
TDK Semiconductor's power meter IC, the TDK 71M6511, integrates a 21 bit delta-sigma converter with three sensor channels, 32-bit compute engine, MCU, RTC, LCD driver, and precision voltage reference ...

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1,1 A charge pumps for LEDs
26 January 2005, CST Electronics, Electrocomp
The MAX1577Z/MAX1577Y ICs are high-efficiency 1x/2x charge pumps from Maxim, which can drive white LEDs with regulated current up to 1,1 A (800 mA guaranteed). By using a proprietary adaptive-mode switching ...

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How to drive white LEDs in portable devices
17 November 2004, Hi-Q Electronics
Saving power, many portable devices use white LEDs as a means of display illumination. This article explains how a high-efficiency driver IC simplifies design of the LED driver circuitry. The explosive ...

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