Power Electronics / Power Management


Latest Articles

Combination PFC/PWM controller simplifies power supply design
5 October 2005
ON Semiconductor's NCP1603 is a combo PFC/PWM controller with integrated standby and high voltage startup capabilities. It combines a power factor correction (PFC) controller chip and a pulse width modulation ...

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1% accurate battery monitors are tiny
5 October 2005, Electrocomp, CST Electronics
Maxim offers new battery monitors packaged in an ultra-small 1 x 1,5 mm microDFN package, making them the smallest battery monitors currently available, it claims. The MAX6775-MAX6781 consume only 3 μA ...

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Quad MOSFET driver ICs for capacitive loads
5 October 2005, Communica
The MD1810 and MD1811 are two new high-speed quad MOSFET driver ICs from Supertex. They are designed to drive N- and P-channel MOSFETs in applications that require a high output current for a capacitive ...

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Battery back-up supervisory circuits
21 September 2005
In some computer applications, it is desirable to provide battery-backup support for external RAM, so that in the event of a power brownout, a battery can supply power to the RAM unit and data stored ...

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350 W switched power supply
21 September 2005, Current Automation
Mean Well has launched the USP-350 series, a 350 W U-bracket power supply with power factor correction (PFC) function. For the growing demand of low-profile middle wattage applications, it features soft ...

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Surface-mount adaptation of FunctionPAK for easy prototyping
21 September 2005, Altron Arrow, EBV Electrolink
Vishay Intertechnology is making all of its FunctionPAK DC-DC converters and current control modules available in a new surface-mount adaptor board configuration for engineering prototype assembly. While ...

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High performance dual output PWM-drivers
21 September 2005
The IR3621M and IR3621F are voltage-mode, dual output bi-phase synchronous buck controller-driver ICs for high performance point-of-load (POL) converters. The IR3621 includes a full suite of power management ...

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Power management ICs combine discrete functions to provide compact solutions
7 September 2005, Altron Arrow, Tempe Technologies, Fire & Safety
Microchip has introduced a series of power management ICs that combine a synchronous buck switching regulator, low dropout (LDO) regulator and power-good function into single-chip solutions. The TC1303/TC1304 ...

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Triple-output charge pump regulator
7 September 2005, Hi-Q Electronics
AnalogicTech's AAT2820 charge pump regulator IC generates three regulated output voltages to meet the needs of portable devices that now integrate CCD camera chips and TFT displays that require positive ...

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Point-of-load supply tracker IC
7 September 2005
Linear Technology's LTC2927 is a single power supply tracking controller to simplify the tracking and sequencing requirements of complex distributed power architectures. The compact device (8-lead SOT-23 ...

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Stepper-motor driver IC has built-in translator
24 August 2005, Altron Arrow
The A3982 from Allegro MicroSystems Europe is a new bipolar stepper-motor driver IC that features built-in translator circuitry to make it easy to interface to microprocessor-based control systems in ...

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Compact AC-DC front-end power supplies
24 August 2005, Vepac Electronics, Integrated Solutions
Artesyn Technologies offers a series of compact 250 W AC-DC power supplies for use as front-end conversion solutions for systems with distributed power architectures. The NLP250 series power supplies ...

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DC-DC converter is now ROHS compliant plus is protected
24 August 2005, Brabek
Recom has redesigned the RY-xxxxSCL/DCL series DC-DC converter to comply with ROHS regulations. In addition to the ROHS compliance, the redesign has allowed the addition of continuous short circuit protection ...

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Protected high-side 1 A load switch has selectable current limit
24 August 2005, Altron Arrow, EBV Electrolink
Vishay's new protected high-side load switch can operate under a supply voltage range of 2,4 V to 5,5 V and handle a continuous output current of 1 A, with the threshold current set by a single external ...

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Low noise step-down regulator
24 August 2005
Linear Technology's LTC3448 is a high efficiency, 2,25 MHz (or 1,5 MHz) synchronous buck regulator IC that can deliver up to 600 mA of continuous output current. It operates in two modes; first, when ...

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USB/AC power management IC has advanced safety features
10 August 2005, Altron Arrow, Information Security
National Semiconductor has introduced a very small, single-chip, dual-input USB/AC battery charger and power management IC that it claims safely charges and maintains single-cell Lithium-ion (Li-Ion) ...

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The development of a reverse-blocking IGBT for use in matrix converters
10 August 2005
Currently, the method most often used to control the frequency of three-phase AC power in equipment for power applications uses inverters. The matrix converter method is currently the focus of attention ...

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'Smart' programmable chip for electricity metering
10 August 2005, Altron Arrow
STMicroelectronics has announced the availability of a new device that incorporates all of the core circuitry required to implement fully electronic electricity meters. The STPM01 addresses a wide range ...

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Hot-swap SIP with active EMI filter
10 August 2005, Integrated Solutions, Products & Solutions
Vicor subsidiary, Picor's QPI-8, is the industry's first system-in-a-package (SiP) device designed to integrate the total hot-swap function with an active EMI filter. As a complete solution, this integrated ...

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Modular UPS system allows for upgrading
10 August 2005, Rittal
The availability of systems and the reliability of data centres are a deciding factor in the efficiency and productivity of business processes. With the new UPS system power modular concept (PMC), Rittal...

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