Power Electronics / Power Management


Latest Articles

Small all-ceramic low noise regulator
9 October 2002, CST Electronics
Maxim's MAX1973 and MAX1974 are 1 A step-down regulators for network and telecoms. Each device operates at a constant 1,4 MHz switching frequency over the load range and minimises noise interference. ...

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Low-voltage ICs for portable power
9 October 2002, Altron Arrow, EBV Electrolink
National Semiconductor offers a series of CMOS power management ICs. They include the LM2608, LM2614 and LM2618 magnetic buck DC/DC converters and LM2788 and LM2798 switched capacitor buck converters. ...

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Transformer for high accuracy power measurement calibration
25 September 2002
A new transformer TZ 105V has been developed by Tae Hwa. Designed to meet class 1 requirements, it is ideally suitable for use in high accuracy power measurement, power calibration, energy watt meters ...

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Low noise, low-dropout regulator requires no capacitor
10 September 2002
Philips Semiconductors' CapFREE SA57000 is part of a series of low-noise, low-dropout regulators. While other devices may appear to be capacitor-free, most have restrictions on capacitive load and require ...

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Hot swap controller with multiple-level control
10 September 2002
Linear Technology's LTC4210, in 6-pin SOT-23 package, is a hot-swap controller that provides active current limiting for over-current transients and latches off an external N-channel MOSFET during short-circuit ...

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Power MOSFETs' current capability increased by 30%
28 August 2002
International Rectifier has introduced 100 V, IRFB4710 and IRFS4710 HEXFET power MOSFETs that it says increase power density in 48 V input, half or full-bridge topologies used in the high performance ...

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LDOs with low supply current and low noise
28 August 2002, Electrocomp
NJR's NJM28XX/NJU777X series LDOs (low drop-out regulator) feature low supply current and low noise. NJR has extended its industry-standard NJM2871F/NJM2872F models with the NJU777XF series for power-saving, ...

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SMD miniature 2 W converters
28 August 2002, Brabek
Recom's RTS and RTD product ranges are 2 W DC/DC-converters with single and dual outputs. In UL94V-0 SMD case that measures only 12,75 x 8,6 x 8,4 mm (single output - RTS) and 15,1 x 8,6 x 8,4 mm (dual ...

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2U redundant PSU with active power factor correction
28 August 2002, Sivan Electronic Supplies
Sunpower Technology's new 2U Mini Redundant power supply with active power factor correction is rated 450+450 W and has a universal full range AC input. The SPR-2450P6 also meets international safety ...

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Encapsulated AC/DC power modules
28 August 2002
The TRACO POWER TML series offers a range of fully encapsulated AD/DC power supplies for PCB mounting with output power of 5, 10, 15 and 30 W. There are 34 standard models available with single, dual ...

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Powering DVB-T - the future
14 August 2002
DVB-T (digital video broadcast-terrestrial) decoders will provide a low-cost route into digital TV for the large number of consumers still relying on analog services. A compact, low-cost DVB-T system ...

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LED cluster driver for rear tail lights
14 August 2002, Electrocomp
An LED cluster driver from ST Microelectronics integrates all the functions required for the intelligent control and drive of LED automotive rear light clusters inside a single chip. Designed to operate ...

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24 Vin family of DC-DC converter modules
14 August 2002
Vicor's family of 24 V input 2nd-generation high power density DC-DC converters is now complete. Design of the final 11 modules - joining the 13 released earlier - was accomplished using Vicor's module ...

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Power semi manufacturer uses innovative process that increases reliability
14 August 2002, Electrocomp
Whenever AC has to be converted into DC, for example, to supply an electronic device with low DC voltage from 230 V a.c. mains, rectifiers are a first choice. Irrespective of whether the necessary rectifier ...

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Wide input miniature DC-DC converters
14 August 2002, Brabek
Recom has expanded its family of miniature, isolated DC-DC converters with a 2 W, 2:1 input converter for input voltage ranges from 5-9 V, 9-18 V, 18-36 V and 36-72 V d.c. Supplied in a 7-pin, UL 94 ...

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Low-side power MOSFET and companion high-side device offer high efficiency
14 August 2002, Altron Arrow, EBV Electrolink
Vishay Siliconix has claimed a new milestone in optimising MOSFETs for core voltage DC-to-DC power conversion with the release of two advanced LITTLE FOOT devices. Latest in the Vishay Siliconix portfolio ...

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High current, low-profile bridge rectifiers
14 August 2002
International Rectifier (IR) has introduced the MTP family of high current, three-phase input bridge rectifiers. Bridge rectifiers are a necessary component for any electronic device requiring the conversion ...

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Temperature switch with latch
14 August 2002, Communica
The S-8130AC is a CMOS temperature switch with a latch function that has a built-in semiconductor temperature sensor. The output signal is inverted when the temperature is detected, and latched until ...

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3-phase 600 kHz buck controller
14 August 2002
Linear Technology's LTC3732 is a 3-phase, 5-bit VID, 600 kHz, synchronous step-down switching regulator that drives N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. ...

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Fan managers
14 August 2002, Tempe Technologies
Microchip's TC654, TC655, TC664 and TC665 fan speed controllers monitor r.p.m. data and can detect when a fan wears out, allowing users to replace fans before they malfunction. Integrating 'FanSense' ...

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