Search Results - "Huh, Yeunhee"
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A 97% high-efficiency 6μs fast-recovery-time buck-based step-up/down converter with embedded 1/2 and 3/2 charge-pumps for li-lon battery management
Published in 2018 IEEE International Solid - State Circuits Conference - (ISSCC) (01-02-2018)“…Lithium-ion batteries are generally used in mobile devices, but the voltage range of the battery varies from 2.7 to 4.2V. To provide a mid-3V-range output from…”
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Conference Proceeding -
2
A Hybrid Structure Dual-Path Step-Down Converter With 96.2% Peak Efficiency Using 250-m \Omega Large-DCR Inductor
Published in IEEE journal of solid-state circuits (01-04-2019)“…A dual-path step-down converter (DPDC) is presented for achieving high power efficiency in the mobile power management ICs (PMICs). Adopting a hybrid structure…”
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Journal Article -
3
A Hybrid Structure Dual-Path Step-Down Converter With 96.2% Peak Efficiency Using 250-m[Formula Omitted] Large-DCR Inductor
Published in IEEE journal of solid-state circuits (01-01-2019)“…A dual-path step-down converter (DPDC) is presented for achieving high power efficiency in the mobile power management ICs (PMICs). Adopting a hybrid structure…”
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Journal Article -
4
A 0.7 mm2 Power Management Unit for Implantable Electroceutical Device with a 91.4 % Peak Efficiency Buck-based Hybrid Step-up and -down MISIMO Converter
Published in 2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) (12-06-2022)“…We present a complete power management unit (PMU) for mm 3 -sized implantable electroceutical devices. With small size and high power efficiency, it includes…”
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Conference Proceeding -
5
An Ultra-Low Power Soft-Switching Self-Oscillating SIMO Converter for Implantable Stimulation Systems
Published in IEEE transactions on industrial electronics (1982) (01-08-2023)“…This letter proposes an ultralow power single-inductor multiple-output converter for an implantable stimulation system. This converter minimizes the number of…”
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Journal Article -
6
Precise and robust hall effect gap sensor with common electrical and magnetic noise reduction technique
Published in 2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC) (01-10-2017)“…Precise Hall effect gap sensor with differential and shielding structure for effective reduction of common electrical and magnetic noise is reported. Applied…”
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Conference Proceeding -
7
A Quasi-Digital Ultra-Fast Capacitor-Less Low-Dropout Regulator Based on Comparator Control for x8 Current Spike of PCRAM Systems
Published in 2018 IEEE Symposium on VLSI Circuits (01-06-2018)“…This paper presents a comparator-based Quasi-Digital LDO (QDLDO) for the negative supply which has an ultra-fast transient response for the PCRAM systems. Even…”
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Conference Proceeding -
8
A 10.1” 183- \mu \text /electrode, 0.73-mm2/sensor High-SNR 3-D Hover Sensor Based on Enhanced Signal Refining and Fine Error Calibrating Techniques
Published in IEEE journal of solid-state circuits (01-04-2018)“…A high-signal-to-noise ratio (SNR) inductor-free 3-D hover sensor is presented. This paper solved the low-signal component issue, which is the biggest problem…”
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Journal Article -
9
A reconfigurable SIMO system with 10-output dual-bus DC-DC converter using the load balancing function in group allocator for diversified load condition
Published in 2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits) (01-06-2016)“…This paper presents a reconfigurable SIMO system with 10-output dual-bus DC-DC converter having two buses for heavy and light load outputs, respectively. The…”
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Conference Proceeding -
10
A 95.2% efficiency dual-path DC-DC step-up converter with continuous output current delivery and low voltage ripple
Published in 2018 IEEE International Solid-State Circuits Conference - (ISSCC) (01-02-2018)“…DC-DC boost converters are widely used to increase the supply voltage in various applications, including LED drivers, energy harvesting, etc. [1-5]. The…”
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Conference Proceeding -
11
A 13.56MHz time-interleaved resonant-voltage-mode wireless-power receiver with isolated resonator and quasi-resonant boost converter for implantable systems
Published in 2018 IEEE International Solid-State Circuits Conference - (ISSCC) (01-02-2018)“…Wireless power transfer (WPT) has been widely adopted in various applications, such as biomedical implants and wireless sensors. A conventional voltage-mode…”
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Conference Proceeding -
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10.4 A hybrid inductor-based flying-capacitor-assisted step-up/step-down DC-DC converter with 96.56% efficiency
Published in 2017 IEEE International Solid-State Circuits Conference (ISSCC) (01-02-2017)“…The number of mobile device users increases every year. Each mobile device is usually equipped with a Li-ion battery having voltage that varies from a minimum…”
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Conference Proceeding -
13
5.2 An 8Ω 10W 91%-power-efficiency 0.0023%-THD+N multi-level Class-D audio amplifier with folded PWM
Published in 2017 IEEE International Solid-State Circuits Conference (ISSCC) (01-02-2017)“…As the portable device market tries to enhance user experience, high-power audio systems with boosted supply voltage have been the main design focus recently…”
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Conference Proceeding -
14
Wireless Power Receiver with Wide Dynamic Range for Biomedical Implants
Published in 2019 IEEE Wireless Power Transfer Conference (WPTC) (01-06-2019)“…A wireless power receiver with wide input power dynamic range is proposed. It includes a Dickson charge pump for low power region and an active rectifier for…”
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Conference Proceeding -
15
An Implantable Wireless Charger System with ×8.91 Increased Charging Power Using Smartphone and Relay Coil
Published in 2021 IEEE Wireless Power Transfer Conference (WPTC) (01-06-2021)“…Implantable biomedical devices are spotlighted as promising diagnostic and treatment solutions for chronic diseases providing continuous management. In order…”
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Conference Proceeding -
16
A 4.5V-Input 0.3-to-1.7V-Output Step-Down Always-Dual-Path DC-DC Converter Achieving 91.5%-Efficiency with 250mΩ-DCR Inductor for Low-Voltage SoCs
Published in 2021 Symposium on VLSI Circuits (13-06-2021)“…This paper presents an always-dual-path (ADP) DC-DC converter that achieves 4.5V-input 0.3-to-1.7V-output buck conversion for battery-powered low-voltage SoCs…”
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Conference Proceeding -
17
Wireless Power Transfer for Small Implantable Devices by using Smartphones with Relay Coils
Published in 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (05-07-2020)“…We present a wireless power transfer (WPT) technique for small implantable devices by using smartphones' transmitting coils at 13.56 MHz of near-field…”
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Conference Proceeding -
18
A Hybrid Dual-Path Step-Down Converter with 96.2% Peak Efficiency Using a 250\text μ Large-DCR Inductor
Published in 2018 IEEE Symposium on VLSI Circuits (01-06-2018)“…A dual-path step-down converter (DPNC) is presented for achieving high power efficiency in mobile PMICs. The proposed DPNC supplies a load current (I LOAD )…”
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Conference Proceeding -
19
A 10.1" 56-channel, 183 uW/electrode, 0.73 mm2/sensor high SNR 3D hover sensor based on enhanced signal refining and fine error calibrating techniques
Published in 2017 Symposium on VLSI Circuits (01-06-2017)“…This paper presents a high SNR self-capacitance sensing 3D hover sensor that does not use panel offset cancelation blocks. Not only reducing noise components,…”
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Conference Proceeding