Toshiba Develops a Wide-Input-Voltage-Range High-Efficiency Switched-Capacitor DC-DC Converter for Wireless IC
Toshiba Corporation (TOKYO:6502) today announced the development of an on-chip switched-capacitor DC-DC converter for wireless ICs that offers up to 95.8% efficiency with a 0.85-to-3.6V wide input voltage range, and a 0.1-to-1.9V wide output voltage range. The DC-DC converter extends the battery life of wireless devices, and supports use of both 3V lithium battery and 1.5V alkaline battery with the same design. This advance was announced at the 2016 IEEE International Solid-State Circuits Conference (ISSCC) in San Francisco, California, on February 2.
Many of today’s wireless ICs have embedded DC-DC converters instead of LDO regulators to reduce the power consumption of the ICs. However, mainstream inductor-based DC-DC converters require an inductor that is relatively bulky and expensive. Capacitor-based DC-DC converters have gained attention recently on their ability to offer a compact, low cost module. However, switched-capacitor DC-DC converters offer high efficiency only in a limited input and output voltage range, since they are based on a discrete conversion ratio; inductor-based DC-DC converters have a continuous conversion ratio. Conventional techniques solve this by connecting multiple switched-capacitor units in series, but this incurs an efficiency penalty.
Toshiba has solved the issue by developing a new unified switched-capacitor topology with 3 capacitors and a multiple switch control architecture, that achieves multiple conversion ratios. Switched between the appropriate configurations of capacitors, this switched-capacitor DC-DC converter offers up to 95.8% efficiency with a 0.85-to-3.6V wide input voltage range, and a 0.1-to-1.9V wide output voltage range. It also supports auto-configured step-up and step-down power conversions, and can provide 2 channels of regulated output voltages.
Toshiba will continue to research this technology toward providing lower-cost and thinner wireless device modules, and plans to use the switched-capacitor in a low-power wireless IC released in three years time.
Toshiba Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into five strategic business domains: Energy & Infrastructure, Community Solutions, Healthcare Systems & Services, Electronic Devices & Components, and Lifestyles Products & Services. 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 over 580 consolidated companies employing 199,000 people
worldwide, with annual sales surpassing 6.6 trillion yen (US$55 billion).
To find out more about Toshiba, visit www.toshiba.co.jp/index.htm
Semiconductor & Storage Products Company
Megumi Genchi / Kota Yamaji, +81-3-3457-3576
Communication IR Promotion Group
Business Planning Division
Information om Business Wire
101 California Street, 20th Floor
CA 94111 San Francisco
Følg pressemeddelelser fra Business Wire
Skrive dig op her og du vil løbende modtage pressemeddelelser på mail. Indtast din mail, klik på abonner og følg instruktionerne i den udsendte mail.
Flere pressemeddelelser fra Business Wire
TAKEDA15.12.2017 13:36 | pressemeddelelse
Takeda and TiGenix announce that Cx601 (darvadstrocel) has received a positive CHMP opinion to treat complex perianal fistulas in Crohn’s disease
TWISPAY15.12.2017 13:23 | pressemeddelelse
Bitcoin Romania and Twispay Announce Integration Partnership Providing Users with the Ability to Purchase Bitcoin with Bank Cards
PEACE-FORUM15.12.2017 12:40 | pressemeddelelse
Upon Conclusion of the Fourth Annual Forum for Promoting Peace in Muslim Societies, Scholars and Intellectuals Visit the Louvre Abu Dhabi Museum
CA-KENNEDY-WILSON15.12.2017 12:02 | pressemeddelelse
Kennedy Wilson Acquires 124-Unit Northbank Apartments in Dublin, Ireland for €45 Million
NV-NAC-FOUNDATION15.12.2017 10:02 | pressemeddelelse
AML BitCoin Enters Phase II of ICO
THE-CITY-OF-JOENSUU15.12.2017 09:26 | pressemeddelelse
Joensuu City Challenge – International Competition for Innovative SMEs Opened
I vores nyhedsrum kan du læse alle vores pressemeddelelser, tilgå materiale i form af billeder og dokumenter, og finde vores kontaktoplysninger.Besøg vores nyhedsrum