Keishi Tsubaki

Publication Activity (10 Years)

Years Active: 2011-2018
Publications (10 Years): 5

Top Topics

Cmos Technology

Fully Integrated

Probabilistic Relaxation

Top Venues

IEICE Trans. Electron.

Publications

Hiroki Asano, Tetsuya Hirose, Taro Miyoshi, Keishi Tsubaki, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa
A Sub-1-µs Start-Up Time, Fully-Integrated 32-MHz Relaxation Oscillator for Low-Power Intermittent Systems. IEICE Trans. Electron. (3) (2018)
Hiroki Asano, Tetsuya Hirose, Taro Miyoshi, Keishi Tsubaki, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa
Sub-1-μs start-up time, 32-MHz relaxation oscillator for low-power intermittent VLSI systems. ASP-DAC (2017)
Toshihiro Ozaki, Tetsuya Hirose, Takahiro Nagai, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa
A Highly Efficient Switched-Capacitor Voltage Boost Converter with Nano-Watt MPPT Controller for Low-Voltage Energy Harvesting. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (12) (2016)
Hiroki Asano, Tetsuya Hirose, Keishi Tsubaki, Taro Miyoshi, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa
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. ESSCIRC (2016)
Hiroki Asano, Tetsuya Hirose, Taro Miyoshi, Keishi Tsubaki, Toshihiro Ozaki, Nobutaka Kuroki, Masahiro Numa
A fully integrated, 1-µs start-up time, 32-MHz relaxation oscillator for low-power intermittent systems. NEWCAS (2016)
Keishi Tsubaki, Tetsuya Hirose, Nobutaka Kuroki, Masahiro Numa
A 32-kHz Real-Time Clock Oscillator with On-Chip PVT Variation Compensation Circuit for Ultra-Low Power MCUs. IEICE Trans. Electron. (5) (2015)
Toshihiro Ozaki, Tetsuya Hirose, Takahiro Nagai, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa
A 0.21-V minimum input, 73.6% maximum efficiency, fully integrated 3-terminal voltage converter with MPPT for low-voltage energy harvesters. ASP-DAC (2015)
Keishi Tsubaki, Tetsuya Hirose, Yuji Osaki, Seiichiro Shiga, Nobutaka Kuroki, Masahiro Numa
A Fully On-Chip, 6.66-kHz, 320-nA, 56ppm/°C, CMOS Relaxation Oscillator with PVT Variation Compensation Circuit. IEICE Trans. Electron. (6) (2014)
Toshihiro Ozaki, Tetsuya Hirose, Takahiro Nagai, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa
A 0.21-V minimum input, 73.6% maximum efficiency, fully integrated voltage boost converter with MPPT for low-voltage energy harvesters. ESSCIRC (2014)
Keishi Tsubaki, Tetsuya Hirose, Nobutaka Kuroki, Masahiro Numa
A 32.55-kHz, 472-nW, 120ppm/°C, fully on-chip, variation tolerant CMOS relaxation oscillator for a real-time clock application. ESSCIRC (2013)
Keishi Tsubaki, Tetsuya Hirose, Yuji Osaki, Seiichiro Shiga, Nobutaka Kuroki, Masahiro Numa
A 6.66-kHz, 940-nW, 56ppm/°C, fully on-chip PVT variation tolerant CMOS relaxation oscillator. ICECS (2012)
Yuji Osaki, Tetsuya Hirose, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa
A low-power single-slope analog-to-digital converter with digital PVT calibration. ICECS (2012)
Kosuke Isono, Tetsuya Hirose, Keishi Tsubaki, Nobutaka Kuroki, Masahiro Numa
A 18.9-nA standby current comparator with adaptive bias current generator. A-SSCC (2011)