Power Electronics / Power Management


Latest Articles

Single-chip PoE controller designed for low-voltage auxiliary power sources
22 March 2006, Altron Arrow
National Semiconductor recently released what it claims is the industry's first single-chip solution specifically designed for power over Ethernet (PoE) devices that operate from alternative power sources ...

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Power conversion ICs now in SMD-8B package
22 March 2006, MB Silicon Systems
Power Integrations has added two more members to its TOPSwitch-GX, high-voltage power conversion IC family. The 8-pin surface mount DIP (SMD-8B) packaged TOP245G and TOP246G devices can be dropped into ...

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Power amplifier for 1,9 to 2,5 GHz wireless applications
22 March 2006
Toshiba Electronics Europe's new medium power SiGe bipolar complementary metal oxide semiconductor (BiCMOS) power amplifier, the TA4401CT, is well suited for use in 1,9 GHz to 2,5 GHz band wireless applications ...

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Bi-directional linear current sensors
22 March 2006, Altron Arrow
Allegro MicroSystems Europe has introduced a new family of bi-directional linear Hall-effect sensors that combine a 20 A dynamic range with an internal resistance of only one milliohm, an accuracy of ...

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Switching power supplies designed for efficiency
22 March 2006, Current Automation
Mean Well has added two new product series to its AC/DC product line: AS-120P, a 120 W power adaptor, and the ASP-150, a 150 W open-frame type switching power supply. Featuring low 'no-load power consumption' ...

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1000 W enclosed power supply for cost-sensitive applications
22 March 2006, Current Automation
Mean Well introduced its SE-1000 series, a 1000 W enclosed-type switching power supply, for the growing demand of low cost high-wattage applications. Featuring 0,45 W/cm³ of power density and a built-in ...

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Innovative 175 W AC/DC supply delivers any required voltage
22 March 2006, Vepac Electronics
XP Power has introduced an innovative AC/DC switching power supply that enables users to specify any voltage level up to the maximum rating of each output while still maintaining full agency approvals. ...

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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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