GaNの話シリコンを粉砕するために捧げたブログ
Term: epc gan
8 post(s) found

GaN電力変換向けに拡張するエコシステム

GaN電力変換向けに拡張するエコシステム
3 21 2018

電力変換の周波数を高めることには多くの理由があります。基本的に、これらの理由は、大きさ/重さの削減、およびコスト削減に帰着します。スイッチング周波数を高めるという目標に加えて、高効率に動作しなければならない電源システムには、いくつかの部品があります。これらには、パワー・スイッチ、パワー・スイッチのドライバ、コントローラ、磁気部品、およびコンデンサなどがあります。総称して、これらの部品は、高周波の電力変換エコシステム(全体の特性をどのように高めていくかの生態系)を表します。これらの要素のどれかがなければ、周波数を高める利点は、完全には実現できません。

11 Myths About Magnetic-Resonance Wireless Charging

11 Myths About Magnetic-Resonance Wireless Charging
5 30 2017

Written By Sanjay Gupta, VP Product Management, WiTricity

While the possibilities of magnetic-resonance-based wireless charging are very exciting, the technology is frequently misunderstood by those not involved in the industry.

Consider the devices we use every day: From smartphones and smartwatches and potentially electric vehicles, electronics are becoming as mobile as people themselves. We rely and expect our devices to be charged at all times, ready-to-use when needed. But as it currently stands, we still must plug in our phones, our electric cars, and our smartwatches, tethering us to cords and cables, triggering range anxiety and obsessing about the remaining juice on our devices.

2017年の私の予測

2017年の私の予測
11 11 2016

2016年1月、私は、そのとき、来る年のいくつかの予測をしました。無線充電、拡張現実、自動運転車、医療診断やインターネット・アクセスの進歩など、新しい市場に対する予測をしました。これらの市場における進歩は、すべての面で、予想よりも、時にはより速く、時にはより遅くなりました。そして、ここで、私たちは、まさに新しい年を迎えようとしており、おそらく、愚かなことに、私は、再び未来を予測しようと思います。

窒化ガリウムは、D級オーディオに高音質と高効率をもたらします

窒化ガリウムは、D級オーディオに高音質と高効率をもたらします
10 27 2016

Class-D audio amplifiers have traditionally been looked down upon by audiophiles, and in most cases, understandably so. Switching transistors for Class-D amplifiers have never had the right combination of performance parameters to produce an amplifier with sufficient open-loop linearity to satisfy the most critical listeners. This restricted the classical analog modulator Class-D systems to lower-power, lower-quality sound systems.

To accomplish the required headline marketing THD+N performance targets, Class-D amplifiers have had to resort to using large amounts of feedback to compensate for their poor open-loop performance. By definition, large amounts of feedback introduce transient intermodulation distortion (TIM), which introduces a ‘harshness’ that hides the warm subtleties and color of the music that were intended for the listening experience.

Forget Everything You Thought You Knew About Semiconductors

Forget Everything You Thought You Knew About Semiconductors
10 13 2016

In past postings , we looked at the applications that have emerged because of new capabilities available with #GaN technology. We also discussed the transformational nature of some of these applications in areas like medicine, telecommunications,human-machine interfaces, and the delivery of electrical power itself (wireless power transfer). GaN technology is entering an era similar to the 80’s and 90’s when the utility of technological improvement was apparent across broad commercial markets. Consequentially, consumers will be willing to pay a premium for the life-style improvements enabled by these improvements thereby accelerating growth of GaN applications for the foreseeable future.

GaN Technology for the Connected Car

GaN Technology for the Connected Car
9 29 2016

GaN technology is disruptive, in the best sense of the word, making possible what was once thought to be impossible – eGaN® technology is 10 times faster, significantly smaller, and with higher performance at costs comparable to silicon-based MOSFETs. The inevitability of GaN displacing the aging power MOSFET is becoming clearer with domination of most existing applications and enabling new ones.

Drones…Up, Up, and Away

Drones…Up, Up, and Away
9 15 2016

Drones are on the rise. In fact, use of drones is only limited by our imagination – from merely recreational (think “drone races”) to delivering packages (as promised by Amazon) to a range of life-saving military uses (such as real-time battlefield imaging). Emerging high speed, small size, and highly efficient gallium nitride power semiconductors are key contributors to the expansion of drone applications, including onboard equipment such as LiDAR imaging and navigation systems and 4G/5G communication transmitters. Let’s take a look at how GaN technology and the expansion of drone applications intersect.

A drone, or more technically, an unmanned aerial vehicle (UAV) is an aircraft without a pilot on board. Control of the drone is accomplished either under remote control from the ground or under control of an onboard computer.

Although drones originated mostly in military applications, civilian drones now vastly outnumber military drones, with estimates of over 9 million consumer drones to be sold in 2016 world wide for a total market value of near $3 billion.

eGaN Technology Reliability and Physics of Failure - eGaN Stress Test Qualification and Capability

eGaN Technology Reliability and Physics of Failure - eGaN Stress Test Qualification and Capability
8 20 2016

The first two installments in this series reported in detail on field reliability experience of Efficient Power Conversion (EPC) Corporation’s enhancement-mode gallium nitride (eGaN®) FETs and integrated circuits (ICs). The excellent field reliability of eGaN® devices demonstrates stress-based qualification testing is capable of ensuring reliability in customer applications. In this installment we will examine the stress tests that EPC devices are subjected to prior to being considered qualified products.