Toshiba Develops Wide-Load-Range High-Efficiency Multiple-Output DC-DC Converter for IoT Applications
Toshiba Corporation (TOKYO:6502) today announced development of an on-chip Single-Inductor Multiple-Output (SIMO) DC-DC converter for IoT devices reliant on coin-type lithium-ion batteries for power. The new converter achieves 65%-to-86% efficiency in the load range from 1 μW to 50 mW, more than 100 times wider than that of a conventional SIMO DC-DC converter, and extends the battery life of IoT devices. The advance was announced at the IEEE Asian Solid-State Circuits Conference (A-SSCC) 2016 in Toyama, Japan, on November 9.
This Smart News Release features multimedia. View the full release here: http://www.businesswire.com/news/home/20161108006360/en/
Fig. 1: DC-DC conversion efficiency vs. output power (Graphic: Business Wire)
ICs that rely on small capacity coin-type lithium-ion batteries for power supply are increasingly used in a wide variety of IoT applications, and are required to save power by operating at minimum supply voltages in each circuit. In order to supply multiple voltages, multiple external inductors were required in a conventional DC-DC converter, but a SIMO DC-DC converter needs only one external inductor. This advantage in reducing device cost and volume has stimulated widespread R&D of SIMO DC-DC converters.
Since an IoT device spends most of its life in standby mode (where power consumption is below 1 mW) and a small part of it in active mode (where power consumption is in the tens of mW), a SIMO DC-DC converters must support a wide load range with high conversion efficiency. However, conventional SIMO DC-DC converters were not designed for IoT applications, and have not been able to support such a wide load range with practical efficiency.
Toshiba has improved SIMO DC-DC converter efficiency in the light load range. The highly sensitive comparator of the conventional control circuit is replaced with a new control circuit that consists of only logic gates1, reducing its power consumption. In addition, the switching frequency of switches that distribute current to output channels is reduced by a newly proposed operation mode. As a result, Toshiba’s new SIMO DC-DC converter achieves over 80% efficiency when the load power is above 5 μW and about 65% when the load power is 1 μW.
Toshiba has also improved efficiency in the tens of mW load range. Conventional analog control required a relatively long wait time before channel switching to prevent interference between output channels of a SIMO DC-DC converter, degrading efficiency in this load range. The new SIMO DC-DC converter uses digital feedback control to minimize waiting time.
The above architecture supports Toshiba’s SIMO DC-DC converter in achieving practical efficiency of 65%-to-86%, in the wide load range from 1 μW to 50 mW (Fig. 1). The load range in which the conversion efficiency exceeds 60% is more than 100 times wider than that of conventional SIMO DC-DC converters, and the new SIMO DC-DC converter extends the battery life of IoT devices that are driven by coin-type lithium-ion batteries.
Toshiba plans to use the SIMO DC-DC converter in low-power ICs for IoT devices, including Bluetooth® low energy, in the future.
1 A circuit that performs a logical operation.
*The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc.
About Toshiba Corporation
Toshiba Corporation, a Fortune Global 500 company, channels world-class
capabilities in advanced electronic and electrical product and systems
into three focus business fields: Energy that sustains everyday
life, that is cleaner and safer; Infrastructure that sustains
quality of life; and Storage that sustains the advanced
information society. Guided by the principles of The Basic Commitment of
the Toshiba Group, “Committed to People, Committed to the Future”,
Toshiba promotes global operations and is contributing to the
realization of a world where generations to come can live better lives.
Founded in Tokyo in 1875, today’s Toshiba is at the heart of a global network of 550 consolidated companies employing 188,000 people worldwide, with annual sales surpassing 5.6 trillion yen (US$50 billion). (As of March 31, 2016.)
To find out more about Toshiba, visit www.toshiba.co.jp/index.htm
Storage & Electronic Devices Solutions Company
Koichi Tanaka / Kota Yamaji, +81-3-3457-3576
Public Relations & Investor Relations Group
Business Planning Division
Om Business Wire
Business Wire, a Berkshire Hathaway company, is the global leader in multiplatform press release distribution.
Følg saker fra Business Wire
Registrer deg med din epostadresse under for å få de nyeste sakene fra Business Wire på epost fortløpende. Du kan melde deg av når som helst.
Siste saker fra Business Wire
Sparkol Launches VideoScribe 318.10.2017 13:24 | Pressemelding
Introducing VideoScribe Version 3 by Sparkol. Already used by over two million people across the world to create engaging explainer videos, Version 3 of the highly intuitive software comes packed full of new features, including: An improved user experience and slick UI - animate easier than ever before Enhanced search - find exactly the image you need in record time Intelligent image recommendations - focus your creativity on your video instead Smoother performance - maximum productivity when using the software VideoScribe customers include the world’s largest brands (HP, BBC, Sky and the University of British Columbia), businesses across every sector, leading education providers, award-winning teachers, charities, campaigners, and coun
Piraeus Bank: Agreement for the Sale of Serbian Operations18.10.2017 13:06 | Pressemelding
Piraeus Bank announces that it has entered into an agreement to sell its Serbian banking and leasing operations to Direktna Banka A.D., a local Serbian banking group that has been strongly growing its presence in the market, for a total cash consideration between €58mn up to €61mn, depending on the financial performance of the divested assets until completion of the transaction, through a combination of direct sale price and simultaneous reduction of capital in Piraeus Bank Beograd AD. The transaction is conditional upon the usual corporate and regulatory approvals, including those of the National Bank of Serbia and the Hellenic Financial Stability Fund. The transaction represents another step towards the implementation of Piraeus Bank’s Restructuring Plan commitments, as those were agreed with the Directorate General of Competition of the European Commission. The transactio
Introducing InVision Studio, The World’s Most Powerful Screen Design Tool18.10.2017 13:01 | Pressemelding
InVision, the product design platform powering the world’s best digital experiences, today introduced Studio, a powerful new tool that will change the way screen design is done. InVision Studio was created by working closely with the world’s best design teams and finding inspiration in how they create beloved digital products. The launch of Studio comes at a time when modern organizations are shaping and redefining entire markets through their focus on digital customer experience. InVision already powers the product design process of more than 3 million people at tens of thousands of companies, including eighty percent of the Fortune 100 and brands like Airbnb, Uber, HBO, Amazon, IBM, Nike, and Slack. This new product reflects a major evolution of the digital product design workflow. With Studio, InVision has developed an end-to-end platform for designing digit
SmartStream and Credit Suisse Expand their Agreement from the Processing of Invoices and Reconciliations to Now Include Listed Derivatives Brokerage Fees18.10.2017 12:00 | Pressemelding
SmartStream Technologies, the financial Transaction Lifecycle Management (TLM®) solutions provider, today announced that its original agreement with Credit Suisse was recently expanded to include the processing of Listed Derivatives Brokerage fees which began in February of this year. This expansion in SmartStream’s partnership with Credit Suisse complements its existing managed service solution for the processing of invoices and reconciliations within Credit Suisse’s OTC Fixed Income Derivatives, US Listed Equity Options and Cash Equities businesses across brokerage, clearing and exchange fees operations, which began in June of 2016. The managed service enables the bank to advance the operational efficiencies created through the use of the utility-based solutions offered by SmartStream, utilizing their proprietary execution fees and expense management software. By centralizing the ent
Biogen Confirms Commitment to Tackle Multiple Sclerosis Through Comprehensive Approach18.10.2017 11:30 | Pressemelding
Biogen (NASDAQ: BIIB) confirms its comprehensive approach to tackle multiple sclerosis (MS) at the seventh Joint Meeting of the European Committee for Treatment and Research in MS and Americas Committee for Treatment and Research in MS (ECTRIMS-ACTRIMS; 25 – 28 October). “With more than 25 years of scientific leadership in MS, Biogen’s commitment is unwavering,” said Michael Ehlers, executive vice president, Research & Development at Biogen. “Our expertise puts Biogen in a unique position with a comprehensive approach including active research and clinical development on how to repair the damage to the central nervous system from relapsing forms of MS, a portfolio of new drug candidates that we are advancing to the clinic, our collaboration to identify a digital biomarker, our focus to advance understanding of the disease through global data collection with MS PATHS, active pursuit
Scientist.com Collaborates With UKCRC Tissue Directory and Coordination Centre to Ensure Quality of Human Biosample Acquisition Globally18.10.2017 11:01 | Pressemelding
Scientist.com, the world’s leading marketplace for outsourced scientific services, today announced that it is entering into a collaboration with the UKCRC Tissue Directory and Coordination Centre (UKCRC TDCC) to support the work of biobanks throughout the United Kingdom. The partnership will enable drug R&D to move forward more quickly by making large collections of prescreened human biological samples available for scientific research. Through the new COMPLI™ feature, Scientist.com provides a simple, efficient and effective way of increasing the visibility and accessibility of biobanks’ human biological samples collections, which support new medical research. COMPLI™ introduces a common, comprehensive process and supply agreement supporting access to human biosamples. The goal is to enable biobanks to more easily connect with researchers in the pharmaceutical and biotech indust
I vårt presserom finner du alle våre siste saker, kontaktpersoner, bilder, dokumenter og annen relevant informasjon om oss.Besøk vårt presserom