Power Electronics / Power Management


Latest Articles

LED driver offers programmable output current and PWM dimming
22 March 2006, Communica
Supertex has introduced an eight-pin LED driver IC with adjustable output current and pulse width modulated (PWM) dimming. The HV9925 integrated circuit can drive multiLED strings in off-line applications ...

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Voltage monitoring ICs added to supervisor family
8 March 2006, Altron Arrow
STMicroelectronics recently extended its family of Supervisor and Reset ICs with the introduction of the STM1061 series of low-power precision voltage detectors. The SOT23-packaged series - which complements ...

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Full-bridge motor driver IC with Hall element
8 March 2006, Altron Arrow
The new A1441 from Allegro MicroSystems Europe is a full-bridge motor driver integrated circuit designed to drive single-phase, low-voltage bipolar brushless DC motors. Commutation of the motor is achieved ...

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DC-DC converters have higher powers
8 March 2006, Current Automation
Mean Well's SD-200 (200 W) and SD-350 (350 W) series enclosed type DC-DC converter expands the company's SD product lines to higher wattage range for the growing demand of middle power DC-DC applications. Featuring ...

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Innovative power plant upgrade for telco reduces operating costs and extends life expectancy
22 February 2006
A locally-developed remote management system for telecommunication power plants has resulted in reduced maintenance costs and a longer life expectancy for rectifiers. Although telecom network operators ...

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Power supplies: the correct voltage at the correct location
22 February 2006, Actum
Many developers, whether they are measurement and control technicians or electronic technicians, are confronted with the phenomenon of 'power supplies'. A re-occurring phenomenon is the supply of suitable ...

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Power supply units for DIN-rail mounting
22 February 2006, Retron
The PSU140 power supply units are particularly robust devices, according to their manufacturer, Feas. They are characterised by good voltage stability with a low level of ripple, without extensive regulation. A ...

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Adjustable power supplies for non-standard voltages
22 February 2006, Actum
Schroff has expanded its range of Maxpower 19-inch compatible AC/DC switching regulators to provide seamless coverage of the full voltage range between 4,5 V and 30 V. Applications in industry and telecoms ...

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New filtered power entry module
22 February 2006, Retron
Schurter has added the series 5120 filtered power entry module to its range. Refined for optimal performance, this new compact filter is particularly suited for single-phase power supplies used in industrial ...

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PWM controllers are 1% accurate to simplify DC-DC power conversion
22 February 2006
International Rectifier offers two 1% accurate, single output, synchronous buck PWM controllers with 4,5 V to 16 V input voltage capability. The IR3637SPbF and IR3637ASPbF are compact and simple solutions ...

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Driver IC powers up to eight white LEDs in series
22 February 2006
Toshiba Electronics Europe has expanded its constant-current white LED driver product line with a compact DC/DC converter IC for powering multisegment white LEDs used to backlight new, larger colour LCD ...

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3 W isolation transformer for DC/DC converter
22 February 2006, ASIC Design Services
Halo offers a new series of 3 W isolation transformers designed specifically for the Maxim MAX256 controller and H-Bridge driver. This circuit is well-suited for industrial controls, medical and telecommunications ...

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Power conversion ICs enable 36 W power supply designs
22 February 2006, MB Silicon Systems
Power Integrations has added a new family of power conversion ICs to its line: the TinySwitch-III. These new devices (TNY274-TNY280) are capable of delivering up to 36,5 W of continuous power without ...

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Choosing a power protection solution provider
22 February 2006
Power protection and conditioning equipment is par-for-the-course in any IT, telecoms or industrial environment. Whether you are choosing lightning protection, UPS back-up systems, inverters, power supplies ...

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Battery-less buffer module is maintenance-free
22 February 2006, Retron
With the use of special electrolytic capacitors, Feas has introduced a novel buffer module as an alternative concept for uninterruptible power supplies. The SSE05 buffer module, simply connected in parallel ...

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Slim DINs pack more power
22 February 2006, Vepac Electronics
XP Power's DNR range of slimline AC/DC DIN-rail power supplies pack more power onto a rail, or, alternatively, they shrink system size for a given power level, says the manufacturer. The RoHS compliant, ...

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Energy scavenging for remote sensors
22 February 2006, Altron Arrow
A recent concept being implemented to power circuits is using energy scavenging. This makes use of energy collection through solar cells, piezoelectric generators, or other energy conversion devices. ...

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Power supply for CompactPCI
22 February 2006, Actum
The maxpowerPRO power supplies from Schroff now have improved output power and a higher level of functionality to fulfil the increased demand of users in the telecoms, automation and test and measurement ...

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State-of-the-art primary side switch for AC/DC converters
22 February 2006
The new VIPer53E from STMicroelectronics includes a PWM driver, an MDmesh MOSFET, a start-up high-voltage current source and several on-chip protection circuits. The VIPer53E is an alternative choice ...

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Regulator buffer UPS for 12/24 V systems
22 February 2006, Retron
Feas' LDR4012 and LDR4024 Accupacks with charging regulators serve to buffer 12 V and 24 V systems. The Accupack LDR is connected between the line voltage and the installation, to provide DC to the ...

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