Power Electronics / Power Management


Latest Articles

Compact 3 A buck regulator is 91% efficient
1 June 2005, Communica
Sipex has added a new device to its PowerBlox family of high current, high voltage, ultra-miniature DC/DC buck regulators. The SP7653 is a 3 A, 1,3 MHz buck regulator suited for compact solution sizes ...

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Multichip power modules for automotive electric systems
1 June 2005
In the last five years, the demand for power semiconductors for automotive applications has increased significantly. In many cases, discrete devices are the common choice to regulate and control the electric ...

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New low voltage output ripple attenuator
1 June 2005
Vicor subsidiary, Picor, has introduced the QPO-2 System-in-a-Package (SiP), an output ripple attenuator that uses active filtering to reduce supply output ripple and noise (PARD, periodic and random ...

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New trench-type IGBT modules with low power drive
1 June 2005
Mitsubishi Electric's NF series features IGBT modules that use CSTBTs. CSTBTs (carrier stored trench-gate bipolar transistor), which surpass the theoretical barriers for IGBT performance, have the most ...

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New 6,9 kA power thyristor
1 June 2005
Ixys has added to its range of large area medium voltage thyristors. Manufactured on a single 100 mm diameter silicon wafer, the 5,2 kV device incorporates specially-designed distributed gate architecture ...

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Slip-on heatsinks for transistors
1 June 2005, Electrocomp
For an effective heat dissipation of single transistors fitted to a PCB, Fischer Elektronik has developed a line of heatsinks for carrying heat away from single semiconductors. These sinks only require ...

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Integrated power switches
1 June 2005, Electrocomp
Infineon's advanced multichip packaging and innovative OptiMOS technology enables a highly compact and efficient power stage for DC-DC conversion in CPU supplies. Featuring a supply voltage of 12 V, ...

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Sealed lead-acid batteries offer long life
1 June 2005
Aztec Electronics has been supplying South African companies with speciality batteries for 26 years and introduced the US-manufactured NorthStar range of batteries to the market over two years ago. Since ...

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High-accuracy addition to current-sensor family
1 June 2005, Altron Arrow
Allegro MicroSystems Europe has added a high-accuracy version Hall-effect current sensor to its range. The ACS754/5 Series provide a smaller, lower-cost alternative to toroid-based sensors, and offer ...

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Power factor correction controllers
1 June 2005
ON Semiconductor introduced two new power factor correction (PFC) controllers at the Applied Power Electronics Conference. The NCP1653 and NCP1601 controllers are designed for use in power supplies with ...

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SMT triacs have extended current range
1 June 2005, MB Silicon Systems
Central Semiconductor has released a new series of triacs with an extended current range. The industry standard current for SOT-223 packaged triacs is 1,0 A. Central Semiconductor now manufactures 2,0 ...

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High frequency IGBT co-pack is enhanced
18 May 2005
International Rectifier's IRGP50B60PD, a 600 V non-punch-through (NPT) insulated gate bipolar transistor (IGBT) is co-packaged with an enhanced 25 A Hexfred diode capable of operating at switching ...

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Top 10 tidbits of battery wisdom
18 May 2005, CST Electronics, Electrocomp
What follows is a short list of common 'sins' made by designers of battery-powered products. Although much of my contact with portable devices comes from a design perspective, most of these items make ...

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Universal active ORing controller IC designed for zero-failure power systems
18 May 2005
International Rectifier introduced a universal high-speed controller/N-channel power MOSFET driver which it says provides a high performance and cost effective 'Active ORing' function to preserve power ...

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Energy-efficient Schottky diode is also small
18 May 2005, MB Silicon Systems
Central Semiconductor's CMDSH05-4 is an energy-efficient high current/low VF Schottky diode packaged in a SUPERmini SOD-323 package. This device offers a high continuous forward current of 500 mA and ...

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Inductorless high current LED charge pump is 90% efficient
18 May 2005
Linear Technology's LTC3215, a fractional charge pump, high current white LED driver IC in a 3 x 3 mm 10-lead DFN package, can deliver up to 700 mA of LED current. Its high efficiency multimode architecture ...

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Battery backup system to maintain communications
18 May 2005
Aztec Electronics has developed the battery backup system for use with Motorola's micro-cell hardware on GSM networks. The purpose of the unit is to provide sufficient DC backup power in order to maintain ...

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High voltage blocking rectifiers
18 May 2005, Electrocomp
One of the 'specialities' that Diotec manufactures are rectifiers that have blocking voltages higher than 1000 V. Typical applications are 'clamper-damper' circuits as used in the horizontal deflection ...

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Power supplies now include special output voltages
18 May 2005, Phoenix Contact, Infrastructure
The Quint Power 48 V/5 A universal power supply from Phoenix Contact enhances the line of special output voltages for mechanical engineering, long routing paths or LED lighting. The 48 V devices open ...

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Power supplies
18 May 2005, Sivan Electronic Supplies
Sunpower's single output series, the SPS-050/075/110, are power supply units that feature universal AC inputs. The 50/75 W units feature a universal AC input of 85 to 264 V a.c. or 120 to 375 V a.c. The ...

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