Features - Power

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      Problematic pacemakers (25/08/2017)

      During the French Revolution, beheading was the preferred method of execution. The guillotine was used for thousands of executions, meaning there was no shortage of experimental material for biologist Marie Francois Bichat. Bichat tested the electrical stimulation of hearts, which was instrumental in the development of the modern day pacemaker. Nowadays, pacemakers are commonly used to maintain a regular heart rate. This article looks at how electrical interference can led to pacemaker issues.

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      Power quality in the medical sector (25/08/2017)

      You may have seen more people in your social news feed checking in to A&E or posting selfies from their hospital bed recently. It’s not that all your Facebook friends have suddenly been under the weather: hospital patients and visitors are now allowed to use mobile phones on site, without fear of interfering with medical equipment. However, hospitals still have a long way to go to mitigate power quality issues.

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      Compact interconnection enables low-floor technology in Vienna trams (26/07/2017)

      One of the key requirements when designing modern light rail vehicles, or trams, is barrier-free accessibility. Low-floor technology makes boarding and exiting much easier, in particular for elderly people, passengers with baby carriages and wheelchair users.

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      Keeping BLOODHOUND on track for world-class speed record (11/05/2017)

      The BLOODHOUND Project was launched in 2008 with the aim of beating the current world record of 763 mph, set by Thrust SSC in the Arizona desert in 1997, when it became the first land-bound vehicle to exceed the speed of sound. BLOODHOUND aims to push the record above 1,000mph.

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      The tendering process in the Ministry of Defence (04/04/2017)

      Every year, the Ministry of Defence (MoD) spends £19 billion with UK industry. It is one of the biggest public procurement organisations in Europe and is the single largest customer for UK industry. The MoD has a huge range of contracts, from utility services to aircraft carrier projects, which companies win through tendering processes. Understanding the tendering process is key to the success of a bid.

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      LED boost driver for low start-up voltage use (04/04/2017)

      This article looks at how to design different constant current DC-DC boost converters for multiple LEDs or a high-power LED using a constant current step-up regulator.

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      Lifestyle changes will drive wireless charging growth (03/04/2017)

      Can anyone recall the last time their smart phone ran out of power? Whether it was a few days ago or a few months ago, there’s possibly nothing more frustrating in today’s world than running out of juice. Mobile devices and smart phones are increasingly power-hungry, with telephone, email, text and numerous apps draining away battery life ever more. Consumer habits and usage patterns have remained fairly similar thus far: use the phone throughout the day, plug it at night, sleep… and repeat.

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      Bringing innovation to power delivery in the USB ecosystem (03/04/2017)

      The potential for USB 3.1 and the Type C connector/cable specification to revolutionise the electronics industry should not be underestimated. But it will require innovative, single-chip solutions to enable OEMs to meet their customers’ high expectations.

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      The role of medical safety standards in power-supply design (03/11/2016)

      Legislation to ensure the development of safe medical systems has seen a number of changes over the past decade and impacts every part of the design down to the power supplies that lie at the heart of any electrical or electronic healthcare device.

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      Automotive 4.0 – the new revolution? (05/10/2016)

      The automotive industry is often misunderstood as being solely associated with cars and related applications.

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      Maximising safety in Li-ion battery implementations (05/09/2016)

      Projections from the analysts at Allied Market Research suggest that the worldwide lithium-ion (Li-ion) battery market will experience a compound annual growth rate (CAGR) of approximately 11% between now and 2022.

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      The growing German battery industry offers many opportunities (01/08/2016)

      Germany’s medtech sector is by far the largest in Europe and the third largest in the world. 

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      Delivering system-wide benefits through phase shift DC/DC conversion (26/05/2016)

      Synchronised step-down regulation for Point-of-Load conversion offers many benefits, inducing reduced RMS current and an overall reduction in noise.

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      Sussing the buck (26/05/2016)

      As demands for longer run time and higher efficiency escalate, electrical system design engineers are facing the difficulties of developing better and more efficient power supplies that can meet the requirements and standards in the industry.

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      Reducing idle losses while meeting IEC 62368-1 (26/04/2016)

      Manufacturers today are under pressure to improve energy efficiency and finding ways to reduce system losses when the system is idle (no load) has become an important consideration. In equipment ranging from televisions and computers to microwave ovens, fridges, air conditioning systems and printers, every milliwatt saved when the device is waiting idle between operations is vital.

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      Better digital power system management (22/04/2016)

      Though power management is critical to the reliable operation of modern electronic systems, few regulators have the means for direct configuration or monitoring of key parameters. As a result, power designers who want digital control must use a combination of sequencers, microcontrollers and voltage supervisors. 

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      Updates to legislation drive external power supplies’ efficiency (03/02/2016)

      As concern for carbon emissions grows, most countries have introduced legislation to regulate the efficiency of external power supplies (EPS), so that as little as possible of our natural resource is wasted.

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      Achieve higher efficiency and reliability in your power supply (03/02/2016)

      The LinkSwitch family of ICs is a range of offline switchers designed for applications where output power is typically below 15W.

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      How to effectively transition to brushless DC motors to benefit a single chip solution (03/02/2016)

      Integration is opening up a growing array of applications for distributed intelligent small drive solutions based on synchronous motors.

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      Designing at very high voltages (11/12/2015)

      For engineers who spend their design time in the single-digit, low-voltage world, the phrase "high voltage" may conjure up voltages in the double digits, perhaps as high as 24 or 48V DC, or even the triple-digit domain of line voltages of 120/240 VAC.