The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The Symposium on VLSI Circuits is sponsored by the Japan Society of Applied Physics and the IEEE Solid-State Circuits Society, in cooperation with the Institute of Electronics, Information and Communication Engineers of Japan and the IEEE Electron Devices Society.
The Hayabusa spacecraft aiming at technology demonstration for world's first sample and return from an extra-terrestrial object was launched by the fifth M-V rocket from Uchinoura Space Center, JAXA on May 9, 2003. It went through several troubles and hardships during totally 7 years of interplanetary flight, it successfully returned to the earth and completed the powered-flight by the ion thruster...
Mobile devices such as laptops, netbooks, tablets, smart phones and game consoles have become our de facto interface to the vast amount of information delivery and processing capabilities of the cloud. The move to mobility has been enabled by the dual forces of ubiquitous wireless connectivity combined with the increasing energy efficiency offered by Moore's law.
A fast-transient, cross-regulation-free, single-inductor multiple-output (SIMO) power converter is proposed. To overcome the inherent drawback of slow load transient response, it employs an adaptive current compensation technique and linear-assisted SIMO architecture, achieving 50.3ns transient response to 270mW load change at 500kHz switching frequency and with 0.35µm CMOS process. The efficiency...
98% cross-talk self-cancellation is achieved by the bidirectional power prediction (BPP) control in the proposed single-inductor dual-output (SIDO) converter. The frequency-controlled resistor based on the switched-capacitor (SC) structure determines the energy correlation scheme between dual outputs. The embedded rough and fine energy trackers in the BPP controller guarantee accurate cross-talk cancellation...
This paper describes a time-limited one-shot current control technique used to extend the outputs of a single-inductor multiple-output DC-DC converter without stability and complexity issues. The proposed scheme also reliably supports many outputs with unbalanced loads. True all-comparator control is realized with a single shared hysteresis comparator and a fixed switching frequency of 800-kHz. The...
An integrated fixed-frequency adaptive-on-time DC-DC converter with fast transient response and high light load efficiency is presented. To achieve fixed frequency at continuous conduction mode, the on-time is adaptively controlled to force the switching frequency tracks the reference frequency with less than +/−0.5% error within the whole operating range. To enhance the light load efficiency as well...
This switching DC-DC buck converter uses a ΔΣ-modulator controller with a scalable sampling frequency, in order to eliminate the spurs and minimize the noise floor at its output without sacrificing the power efficiency. Fabricated in 0.13-µm digital CMOS, it achieves a spurious-free output with voltage ripples below 70mV over its full loading range (2mA to 800mA). Furthermore, its power efficiency...
The first fully integrated transceiver operating at 0.38THz has been demonstrated in 0.13µm SiGe BiCMOS with ƒT=230GHz. Quadrature push-push circuitry using transformer-coupled stages and Coplanar Strip (CPS) lines are used to realize a terahertz (THz) subharmonic mixer, a quadrature generator, and a quadrupler from a strong fundamental LO quadrature signal generated at the W-band. The measured Equivalent...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.