Power Electronics / Power Management


Latest Articles

Users can customise standard reference power designs online
18 October 2006
International Rectifier has expanded its myPOWER online design services by introducing its POWIR+ chipset reference designs and enhanced online design services, to simplify and accelerate power management ...

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Rugged DC power systems adapt to a wide range of operating conditions
18 October 2006
Power-One's Aspiro 48 V power system, providing shelf-based rectification, battery management, and distribution, utilises digitally-controlled rectifiers that can adapt, without derating, to a wide range ...

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30 W power supply boasts 5 x 10 cm footprint
18 October 2006
Operating over a 90 to 264 V a.c. input range, Power-One’s BLP30-3000G power supply provides 30 W in a 5 x 10 cm footprint. Outputs are +5 V at 3,5 A (5 A peak), +12 V d.c. at 2 A, and -12 V d.c. at ...

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35 W open-frame type power supply in smaller footprint
18 October 2006, Current Automation
Mean Well has introduced a 35 W open frame type switching power supply in 10,2 x 5,1 cm format, which targets general industrial applications with requirements for miniature size. The 12,7 x 7,6 cm PCB ...

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Slim-line bench power supply
18 October 2006, Mimic Components
The PSU 130 is a slim-line power supply for bench-top use. It has a constantly adjustable output ranging from 1,5 V to 30 V at up to 1 A. The output voltage can be adjusted to within 0,1 V throughout ...

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Quad power sequencer saves board space
18 October 2006, Communica
Supertex has introduced a new power supply sequencer IC with four outputs, each capable of sequencing power-up and power-down. The PS12 delivers an integrated power sequencing solution for use in telecoms ...

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Constant-current, 8-bit LED driver with diagnostics
18 October 2006
austriamicrosystems has unveiled an innovative 8 channel constant current LED driver with diagnostics function. The AS1109 LED driver has advanced error diagnostics for open and shorted LED. A fast 30 ...

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800 mA step-down converter portable systems
4 October 2006, Hi-Q Electronics
AnalogicTech’s AAT1142 is a voltage­scaling step-down converter for portable applications. Supplying up to 800 mA output current, the device is the first voltage-scaling step-down converter to offer dynamic ...

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Power supply management - principles, problems, and parts
4 October 2006
Power supply designers are using flexible supply monitoring, sequencing, and adjustment circuits to manage their systems. This article discusses why and how. The monitoring and control of a growing number ...

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Buck regulators have very high power density
4 October 2006, Altron Arrow
National Semiconductor has expanded its high power-density regulator line with the LM2830/1/2. These regulators are monolithic, high-frequency, PWM step-down DC-DC converters. According to the manufacturer, ...

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1 kW power supply is 1U high
4 October 2006, Current Automation
Mean Well has introduced its RSP-1000 series – a 1000 W enclosed type switching power supply with power factor correction (PFC) and parallel function. Intended for the 1U low profile and high wattage ...

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Efficient DC-DC converters
4 October 2006, Sivan Electronic Supplies
Cosel's DC-DC converter modules offer high efficiency (synchronous rectifier circuit) and have built-in overcurrent protection circuits. The SUW1R5 modules are available in SMD or through-hole mounting ...

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High-current microstepper simplifies motor drive
4 October 2006, Altron Arrow
Allegro MicroSystems' A3986 is a new dual full-bridge gate driver with integrated microstepping translator suitable for driving a wide range of medium to high-power bipolar two-phase stepper motors. The ...

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Boost converter with dynamic output voltage programming has small footprint
20 September 2006, Hi-Q Electronics
Whilst operating, lighting and display functions in portable products can consume a significant portion of a lithium-ion battery's available power, finding ways to optimise power dissipation and maintain ...

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The secrets of battery runtime
20 September 2006, Uniross Batteries
Is the runtime of a portable device directly related to the size of the battery and the energy it can hold? In most cases, the answer is yes. But with digital equipment, the length of time a battery can ...

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COTS military and avionics DC-DC converters cut costs and time-to-market
20 September 2006, Vepac Electronics
XP Power has released MTC, a series of 4 to 35 W DC-DC converters designed as a standard product family exclusively for defence and avionics applications. No compromise has been made in component selection ...

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Micro-sized AC/DC suits 'green power' apps
20 September 2006
Designed for standby mode and other low-power supply applications, Bias Power's new BPS micro-size switching power supply allows designers 0,5 or 1 W of power in a 25,4 x 22,3 x 12,7 mm package. Operating ...

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Power manager for portable USB devices
20 September 2006
Linear Technology's LTC4085 is a monolithic autonomous power manager, ideal diode controller and standalone battery charger for portable USB devices, all in one package. The chip features PowerPath control ...

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Lighting drivers power up to 20 series-connected LEDs
6 September 2006, Altron Arrow, Access Control & Identity Management
National Semiconductor recently introduced two new, highly-integrated lighting management units (LMUs) that include a high-voltage boost converter and programmable constant-current driver to control up ...

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Step-down DC-DC converter only needs a few external components
6 September 2006, Altron Arrow
STMicroelectronics' ST1S06 is an advanced high-frequency step-down DC-DC converter particularly suited for use in data-storage applications, such as hard disk drives, DVDs, Blu-ray Discs, high-definition ...

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