Power Electronics / Power Management


Latest Articles

PSB mount switching PSU
21 February 2007, Sivan Electronic Supplies
Cosel′s LEP Series of PCB-mount type power supply complies with IEC61000-3-2. It has universal input voltage rating and peak output power of 480 W. Key features include: high power and peak power; rugged ...

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30 W external charger
21 February 2007, Current Automation
Mean Well's new CG30 series, a 30 W lithium ion battery charger, complies with global safety certificates and the 2002/95/EC RoHS requirements of EU. The GC30 series are two-stage battery chargers with ...

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DC-DC unregulated converters ease production
21 February 2007, Current Automation
Mean Well has introduced several SMD packaged 1 W DC-DC converters: the SBT01/SFT01/DET01 that will support the growing demand of miniature size and for the ease of SMT production processes. With industry ...

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Split-core current transformers for active power monitoring
21 February 2007
LEM has introduced the TT series of compact split-core AC current transformers. The core material used is a new type of ferrite with improved magnetic permeability, allowing the accurate measurement of ...

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Class G amplifier technology enables piezoelectric drive with only a few support components
21 February 2007, CST Electronics, Electrocomp
One of the main attractions for using ceramic piezoelectric speakers is their thin form factor. But to maintain the advantage of the ceramic speaker, the amplifier must also provide a compact solution. ...

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Efficient 450 W hot-swap front-end has extensive I²C interface capabilities
21 February 2007
The SFP450-12BG from Power-One is a 450 W, hot-swap, AC-DC front-end. This I²C-compatible power supply uses advanced topologies and thermal management techniques to deliver 12 V d.c. at 36,6 A, with efficiencies ...

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High-voltage control ICs for constant LED current regulation
21 February 2007
International Rectifier has introduced a high-voltage, high-frequency buck regulator control IC for AC-DC offline, non-isolated applications requiring multiple light-emitting diode (LED) circuits or requiring ...

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IGBTs for induction heating
21 February 2007
Thanks to their high efficiency, flameless safe operation and quick reaction time, induction heating (IH) cookers are gaining in popularity. To control the operation of a resonant inverter, STMicroelectronics...

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Surface mount bridge rectifier is a powerful device
21 February 2007, Electrocomp
Diotec's new SMD bridge series, the B40S2A to B380S2A, offers output currents of up to 2,3 A in SO-DIL package. This makes them, according to the manufacturer, the most powerful SMD bridge rectifiers ...

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Step-down DC-DC converters are efficient and tiny
21 February 2007
ON Semiconductor has introduced two new high-performing pulse width modulation (PWM), pulse frequency modulation (PFM) and PWM-only DC-DC converters optimised for portable applications. Supplying clean ...

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Robust 600 V single-channel drivers
21 February 2007
International Rectifier has introduced a series of robust single-channel high-voltage integrated circuits (HVIC) for a wide range of applications including motor control, lighting, switch mode power supplies, ...

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Step-down converter enables smallest solution size
7 February 2007
Developed with space-constrained portable applications in mind, AnalogicTech's AAT1149 high performance, fast transient, 400 mA step-down converter allows the use of 1 mm high inductors in the industry's ...

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Single-device solution to power application microprocessors
7 February 2007
A new high efficiency synchronous DC-DC buck (step-down) converter in a unique 0,55 mm ultra-thin DFN package, which features an integrated low noise LDO, is being offered by On Semiconductor. Ideal for ...

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Reducing power-consumption in line-powered applications
7 February 2007, Electrocomp, Future Electronics, Tempe Technologies, Altron Arrow
Line-powered control applications need to use every possible power-saving feature and technique if they are to achieve an efficient power supply for low-voltage components. A minimal 50 mW of power to ...

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Motor control for variable-speed pumps enables energy consumption reduction
7 February 2007
International Rectifier has introduced a sensorless sinusoidal motor control platform that delivers quieter operation and higher efficiency for variable-speed pump applications up to 300 W. By effectively ...

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Saving energy = saving your money
7 February 2007, RS South Africa
It is simple: the more energy we use, the more money we pay. We need to learn how to optimise the use of energy in order to gain maximum value of every rand spent. Added to this is the shortage of generation ...

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Ensure the safety of door openers by current measurement
7 February 2007
Power openers, used for garage doors, gates, shutters or awnings, are becoming more common in day-to-day life, and protection is a concern that must be taken into account during their design. Imagine ...

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Low-noise voltage refs claim lowest current draw
7 February 2007, Altron Arrow
Intersil's ISL21009 FGAT voltage references are high precision, low noise voltage references fabricated on Intersil's proprietary Floating Gate Analog technology. With this device, Intersil claims the ...

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High side current monitors feature wide input voltage range
7 February 2007, Communica
Supertex' two new high-side current monitor ICs feature a very wide operating range of 8-450 V. Both the HV7801 and the HV7802 devices also boast fast rise and fall times of 700 ns, low quiescent currents ...

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Medical/industrial PCB mount power supplies
24 January 2007, Current Automation
Mean Well has launched another low profile (127 x 76 x 30 mm) PCB type switching power supply to the market. The RPS/D/T-75 series targets medical and IT applications with the requirement of miniature ...

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