Keishi Tsubaki

According to our database, Keishi Tsubaki authored at least 13 papers between 2011 and 2018.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2018

A Sub-1-µs Start-Up Time, Fully-Integrated 32-MHz Relaxation Oscillator for Low-Power Intermittent Systems.

Hiroki Asano, Tetsuya Hirose, Taro Miyoshi, Keishi Tsubaki, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa

IEICE Trans. Electron., 2018

2017

Sub-1-μs start-up time, 32-MHz relaxation oscillator for low-power intermittent VLSI systems.

Hiroki Asano, Tetsuya Hirose, Taro Miyoshi, Keishi Tsubaki, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the 22nd Asia and South Pacific Design Automation Conference, 2017

2016

A Highly Efficient Switched-Capacitor Voltage Boost Converter with Nano-Watt MPPT Controller for Low-Voltage Energy Harvesting.

Toshihiro Ozaki, Tetsuya Hirose, Takahiro Nagai, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

A fully integrated, 1-µs start-up time, 32-MHz relaxation oscillator for low-power intermittent systems.

Hiroki Asano, Tetsuya Hirose, Taro Miyoshi, Keishi Tsubaki, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the 14th IEEE International New Circuits and Systems Conference, 2016

A 1.66-nW/kHz, 32.7-kHz, 99.5ppm/°C fully integrated current-mode RC oscillator for real-time clock applications with PVT stability.

Hiroki Asano, Tetsuya Hirose, Keishi Tsubaki, Taro Miyoshi, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the ESSCIRC Conference 2016: 42^nd European Solid-State Circuits Conference, 2016

2015

A 32-kHz Real-Time Clock Oscillator with On-Chip PVT Variation Compensation Circuit for Ultra-Low Power MCUs.

Keishi Tsubaki, Tetsuya Hirose, Nobutaka Kuroki, Masahiro Numa

IEICE Trans. Electron., 2015

A 0.21-V minimum input, 73.6% maximum efficiency, fully integrated 3-terminal voltage converter with MPPT for low-voltage energy harvesters.

Toshihiro Ozaki, Tetsuya Hirose, Takahiro Nagai, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the 20th Asia and South Pacific Design Automation Conference, 2015

2014

A Fully On-Chip, 6.66-kHz, 320-nA, 56ppm/°C, CMOS Relaxation Oscillator with PVT Variation Compensation Circuit.

Keishi Tsubaki, Tetsuya Hirose, Yuji Osaki, Seiichiro Shiga, Nobutaka Kuroki, Masahiro Numa

IEICE Trans. Electron., 2014

A 0.21-V minimum input, 73.6% maximum efficiency, fully integrated voltage boost converter with MPPT for low-voltage energy harvesters.

Toshihiro Ozaki, Tetsuya Hirose, Takahiro Nagai, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the ESSCIRC 2014, 2014

2013

A 32.55-kHz, 472-nW, 120ppm/°C, fully on-chip, variation tolerant CMOS relaxation oscillator for a real-time clock application.

Keishi Tsubaki, Tetsuya Hirose, Nobutaka Kuroki, Masahiro Numa

Proceedings of the ESSCIRC 2013, 2013

2012

A 6.66-kHz, 940-nW, 56ppm/°C, fully on-chip PVT variation tolerant CMOS relaxation oscillator.

Keishi Tsubaki, Tetsuya Hirose, Yuji Osaki, Seiichiro Shiga, Nobutaka Kuroki, Masahiro Numa

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

A low-power single-slope analog-to-digital converter with digital PVT calibration.

Yuji Osaki, Tetsuya Hirose, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

2011

A 18.9-nA standby current comparator with adaptive bias current generator.

Kosuke Isono, Tetsuya Hirose, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa

Proceedings of the IEEE Asian Solid-State Circuits Conference, 2011