Power Electronics / Power Management


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100 V PoE controller for IP phones and WLAN
19 October 2005, EBV Electrolink
Texas Instruments' has introduced its third generation Power-over-Ethernet controller technology to ease implementation of Ethernet-powered devices such as WLAN access points, IP phones, security and ...

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Ultra-small 1 MHz step-down converters are also efficient
19 October 2005, Hi-Q Electronics
AnalogicTech has introduced two extremely small 1 MHz step-down converters. Even though saving space is a top priority in portable systems, designers often have to compromise by using a large package ...

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Low input voltage LDOs with supervisor
19 October 2005, Altron Arrow
Texas Instruments' TPS726xx family of 1 A low-dropout (LDO) linear regulators has fixed voltage options available that are commonly used to power the latest DSPs, FPGAs, and microcontrollers. The integrated ...

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High voltage Class D audio control IC also protects
19 October 2005
A 200 V(out) control IC, developed specifically for Class D audio applications up to 500 W per channel, has been released by International Rectifier. The IRS20124S, in a 14-pin SOIC package, has integrated ...

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¼-brick provides over 95% rated power at 70°C
19 October 2005
Power-One's 46 A quarter-brick bus converter, the QTS48T46096, offers industry-leading efficiencies of over 97%. Combined with advanced thermal-management techniques it delivers precedent-setting elevated-temperature ...

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DC-DC converters
19 October 2005
Taiyo Yuden offers an extensive selection of DC-DC converters designed to drive the contrast circuitry that is built into passive liquid crystal displays. According to the company, these modules incorporate ...

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Miniature battery management and protection ICs
19 October 2005, Altron Arrow
National Semiconductor recently introduced two battery-charging products for portable electronics, a single-cell USB/AC charger, and a charge control and protection circuit for embedded Lithium-Ion and ...

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Linux USB interface for UPSs
19 October 2005
MGE UPS Systems has introduced a Linux USB interface for UPSs. The company, a leader in high availability power solutions, is a major contributor to the Network UPS Tools Open Source project and is now ...

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Adjustable or fixed-output step-down DC-DC converters
19 October 2005, Altron Arrow
The TPS6211x devices are a family of low-noise synchronous step-down DC-DC converters from Texas Instruments that are ideally suited for systems powered from a 2-cell Li-ion battery or from a 12 V or ...

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Higher current D2Pak MOSFET also has lower on-resistance
19 October 2005
International Rectifier's 160 A-rated, seven-pin IRF2907ZS-7PPbF, expands the company's family of high performance 75 V and 100 V HEXFET synchronous rectification MOSFETs. The 160 A rating provides an ...

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Variable transformers more easily installed
19 October 2005, Retron
The 25-400 VA MTL transformers from Murrelektronik have a novel and compact design. The redevelopment of all transformer components has meant that many useful features have now been integrated. For example, ...

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SMPS unit for virtually any application
19 October 2005, Retron
With PIP Power, an extended product range of switched-mode power supplies from Murrelektronik, an optimal solution for virtually every customer application, fulfilling economical, size and functionality ...

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Configuration software for power distribution systems
19 October 2005, Rittal
'Rittal Power Engineering' is Rittal's new configuration software that provides system planners with a tool for simpler, faster configuration of low-voltage distributors with its SV-TS8 Maxi-PLS or SV-TS8 ...

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DC electronic load offers voltage dropout protection
19 October 2005
The LD300 DC electronic load from Tti (Thurlby Thandar Instruments) has been enhanced by the addition of a low voltage dropout facility. This feature is designed to protect sources such as batteries from ...

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PWM controller has integrated MOSFET drivers
19 October 2005, Altron Arrow
The ISL6308 from Intersil is a new three-phase PWM control IC with integrated MOSFET drivers. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller ...

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How do you decide on an uninterruptible power supply?
19 October 2005
A key consideration in deciding on the purchase of a UPS is the degree of protection afforded in mitigating against power variations, power failures, 'brown outs' and, particularly on the Highveld, lightning-induced ...

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Space-efficient 3-pin reset generator circuits
5 October 2005
Analog Devices offers a range of reset generator circuits designed for use in microprocessor-based systems to monitor power supply voltage levels from 5 V down to 2,5 V. Their reset output signals are ...

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30 A DC-DC converter for radios
5 October 2005
RF Cable & Connector Supplies has added to its range of AvengA power supply products a 30 A 24-12 V DC to DC converter, the AVE2412/30A. this is the big brother of the existing popular 15 A variant that ...

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High-voltage adjustable LED driver
5 October 2005, CST Electronics, Electrocomp
Maxim has introduced an adjustable linear current regulator that can provide up to 350 mA of current to one or more strings of high-brightness LEDs. A wide operating input-voltage range of 6,5 V to 40 ...

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Development kit for digital power controllers
5 October 2005, NuVision Electronics
Silicon Laboratories' comprehensive development kit for the Si825x family of digital power controllers is a complete hardware and firmware development system that requires users to write little or no ...

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