Power Electronics / Power Management


Latest Articles

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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Low noise LDO regulators operate over wider temperature range
6 September 2006
Linear Technology has introduced wider temperature range versions of its LT1763 and LT1764A high current, low noise linear regulators. The new 'MP' grade features operation from -55°C to +125°C for a ...

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Power MOSFET portfolio expanded
6 September 2006, Altron Arrow
ON Semiconductor has expanded its Power MOSFET portfolio with 18 new devices for computing. These new power MOSFETs optimise DC-DC conversion and reduce power losses at critical current levels, it says. ...

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Choosing a battery that will last
23 August 2006, Uniross Batteries
What causes a battery to wear down - is it mechanical or chemical? The answer is 'both'. A battery is a perishable product that starts deteriorating right from the time it leaves the factory. Similar ...

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400 W switcher PSU fits in 1U high apparatus
23 August 2006, Vepac Electronics
XP Power has developed a family of 400 W AC/DC switching power supplies that it says enables more power to be delivered in an industry-standard 1U high enclosure. Most 1U units are limited to around 250 ...

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Chip simplifies control of automotive loads
23 August 2006
AMI Semiconductor (AMIS) offers a new high-side driver IC to simplify the control of transistor gates, relays, valves, solenoids, LEDs and other loads in 12 V automotive environments. Supplied in a compact ...

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Integrated 3 A power management and conversion IC
23 August 2006
Zilker Labs has introduced what it claims is the industry's only single-chip 3 A power conversion solution that integrates full digital power management capabilities. The ZL2105 combines a synchronous ...

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Power modules with new chip technology have less stray inductance and extended operating temperature
9 August 2006, Electrocomp
At the PCIM 2006 exhibition and congress in Nuremberg, Infineon Technologies introduced a new family of compact IGBT (insulated gate bipolar transistor) modules intended for power converter system solutions. ...

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Motor control system makes trains more reliable
9 August 2006
Developed by Siemens rail technology experts in Erlangen, Germany, for controlling the drive motors of rail vehicles, the Sitrac system requires fewer sensors, a design factor that reduces downtime of ...

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Heatsinking aluminium cases for electronics
9 August 2006, Electrocomp
Extracting the heat from electronic components on PCBs that have been pushed into cases, or which have to be firmly installed, is often rather difficult due to the fact that appropriate cases are not ...

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