Power Electronics / Power Management


Latest Articles

PFC rectifiers
2 February 2011, EBV Electrolink
The new 600 V, 8 A devices feature an ultra-low typical voltage drop of 1 V at rated current, fast recovery times as low as 16 ns in hard switching conditions, and typical leakage current at 125°C as ...

Read more...
Energy metering chip
19 January 2011, Altron Arrow
NXP Semiconductors has rolled out the EM773 energy metering IC – the world‘s first 32-bit ARM-based solution designed specifically for non-billing electricity metering applications. The chip takes energy ...

Read more...
Considerations for coin cell-powered wireless devices
19 January 2011, Altron Arrow
When designing a small wireless sensor node to be powered by the popular CR2032 coin cell, some sources claim there is a 15 mA ‘limit’ and that drawing more current is not possible or will damage the ...

Read more...
Mat charges mobile devices wirelessly
19 January 2011
Platinum Micro, appointed the sole South African distributor for the Powermat wireless charging device, recently launched the charger to major retail organisations. The Powermat consists of a charging ...

Read more...
Low dropout regulators
19 January 2011
A pair of low dropout linear regulators with industrial temperature rating of –40°C to +85°C has been introduced by Diodes Incorporated. Suiting applications including set-top boxes, routers and LCD ...

Read more...
200 W power supplies
19 January 2011, Accutronics, Vepac Electronics
TDK-Lambda has added a 200 W model to its single-output LS series of general purpose power supplies, with models now covering from 25 W up to 200 W. The LS200 is targeted at budget conscious applications ...

Read more...
New package enhances MOSFET power dissipation
19 January 2011, EBV Electrolink
As DC-DC applications such as power modules, telecommunications and servers become more space-constrained, designers are looking for smaller devices to meet their design challenges. The thermal capability ...

Read more...
P-channel power MOSFETs
19 January 2011, Future Electronics
International Rectifier has introduced a new family of -30 V devices featuring IR’s latest P-channel MOSFET silicon in an SO-8 package for battery charge and discharge switches, and system/load switches ...

Read more...
Improve power converter reliability using hiccup-mode current limiting
24 November 2010, Altron Arrow
Switch-mode power supplies employ various schemes to protect themselves and, ideally, the load, in overload conditions. Depending on whether the power converter automatically recovers and reverts back ...

Read more...
Baseplate-cooled power supplies
24 November 2010, Vepac Electronics
TDK-Lambda has launched the CPFE500 range of baseplate-cooled power supplies capable of providing 500 W without the need for fan cooling. With an extended temperature range (-40°C to +85°C) this range ...

Read more...
SOT-23 power MOSFETs
24 November 2010, Future Electronics
International Rectifier’s latest family of HEXFET power MOSFETs feature low on-state resistance (RDS(on)) in an industry-standard SOT-23 package for applications including battery charge and discharge ...

Read more...
Front-end DC-DC power supply
24 November 2010, MB Silicon Systems
Power-One announced the availability of its SFD1200-12BG front-end DC-DC power supply. This 1200 W product provides a 12 V d.c., 99,2 A maximum rated output and features efficiencies up to 91% from a ...

Read more...
Compact wind turbine
24 November 2010
The AirDolphin is a compact and lightweight wind turbine developed by Japanese company Zephyr to deliver over 170 kWh per month at average wind speeds of 21,6 km/h. Weighing in at just 17,5 kg employs ...

Read more...
Improved measurement and analysis of standby batteries
10 November 2010
The infrastructure that underpins contemporary society must operate with very high reliability. In contrast to the advanced technology deployed in data storage centres, Internet server farms and communications ...

Read more...
DC-DC controller
10 November 2010, MB Silicon Systems
Micrel has expanded its family of ‘Hyper Speed Control’ synchronous DC-DC controllers with the introduction of the MIC2166. The device is an adaptive on-time controller capable of driving up to 25 A ...

Read more...
40 W DC-DC converter
10 November 2010, MANTECH
The VRB_D-40W 40 Watt DC-DC converter from Mornsun offers a 2:1 input voltage range. Its low profile of only 11,8 mm and compact area of 50,8 x 50,8 mm offers space saving for compact product designs. The ...

Read more...
Designing an effective power alternative
10 November 2010
Against the backdrop of uncertain utility power supplies in South Africa, companies are turning to alternative power sources in order to maintain up-time and remain competitive. While solar, wind and ...

Read more...
Solar charge controllers
10 November 2010, MANTECH
The MPPT series of solar charge controllers includes the MPPT08A, MPPT10A, MPPT20A, MPPT40A and MPPT60A, with an input voltage range of up to 50 Voc for 8 and 10 Amp units, and up to 150 Voc for the 20, ...

Read more...
Remote generator monitoring system
10 November 2010
Gentick Electronics, a company born out of the 2008 generator boom which resulted from Eskom’s load shedding during that period, has designed a new DIN-rail mounted generator monitoring unit. Previously, ...

Read more...
USB charger
10 November 2010, Altron Arrow
Phihong has developed a small, low-cost 2,75 W USB charger. Measuring 42 x 43 x 21 mm and with a weight of 80 grams, the PSM03E is compliant with the new ENERGY STAR EPS version 2.0 as well as the European ...

Read more...



<< First   < Previous   Page 106 of 194   Next >   Last >>







While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved