Yoshikatsu Ryu

0.5-V input digital LDO with 98.7% current efficiency and 2.7-µA quiescent current in 65nm CMOS

Yasuyuki Okuma, Koichi Ishida, Yoshikatsu Ryu et al. · 2010 · 163 citations

Engineering, Electrical Engineering, Microelectronics +16

Startup Techniques for 95 mV Step-Up Converter by Capacitor Pass-On Scheme and ${\rm V}_{\rm TH}$-Tuned Oscillator With Fixed Charge Programming

Po-Hung Chen, Koichi Ishida, Katsuyuki Ikeuchi et al. · IEEE Journal of Solid-State Circuits · 2012 · 135 citations

Engineering, Electrical Engineering, Low-power Design +14

0.18-V input charge pump with forward body biasing in startup circuit using 65nm CMOS

Po-Hung Chen, Koichi Ishida, Xin Zhang et al. · 2010 · 77 citations

Engineering, Electrical Engineering, Agricultural Electrification +13

A 0.6 V Input CCM/DCM Operating Digital Buck Converter in 40 nm CMOS

Xin Zhang, Po-Hung Chen, Yasuyuki Okuma et al. · IEEE Journal of Solid-State Circuits · 2014 · 72 citations

Engineering, Electrical Engineering, Low-power Design +15

An 80 mV Startup Dual-Mode Boost Converter by Charge-Pumped Pulse Generator and Threshold Voltage Tuned Oscillator With Hot Carrier Injection

Po-Hung Chen, Xin Zhang, Koichi Ishida et al. · IEEE Journal of Solid-State Circuits · 2012 · 66 citations

Engineering, Electrical Engineering, Low-power Design +12