A Fully-Integrated High-Voltage Generation IC for Implantable Medical Devices
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This work presents the design of a fully-integrated high-voltage charge pump IC for implantable medical devices using 0.18-µm CMOS process. The implemented charge pump IC is used to generate high-voltage DC supply of around 12.8 V for the neural stimulator circuit using 3.2-V input voltage with on-chip pumping and load capacitors. The proposed hybrid charge pump IC is comprised of a feed-forward high-efficiency capacitive pumping path and an input voltage modulated feedback regulation path to maintain the output voltage with varying load current of up to 300 µA. The proposed IC achieves around 46% power efficiency at maximum current load condition.
Abstract
This work presents the design of a fully-integrated high-voltage charge pump IC for implantable medical devices using 0.18-µm CMOS process. The implemented charge pump IC is used to generate high-voltage DC supply of around 12.8 V for the neural stimulator circuit using 3.2-V input voltage with on-chip pumping and load capacitors. The proposed hybrid charge pump IC is comprised of a feed-forward high-efficiency capacitive pumping path and an input voltage modulated feedback regulation path to maintain the output voltage with varying load current of up to 300 µA. The proposed IC achieves around 46% power efficiency at maximum current load condition.
참고문헌 (12)
- K. Chen, "An integrated 256-channel epiretinal prosthesis", IEEE J. Solid-State Circuits, 45(9), pp.1946~1956 (2010)
- H. -M. Lee, "A power-efficient switched-capacitor stimulating system for electrical", optical deep brain stimulation, 2015, pp.50(1), 360~374
- M. Yip, "A fully-implantable cochlear implant SoC with piezoelectric middle-ear sensor and arbitrary waveform neural stimulation", IEEE J. Solid-State Circuits, 50(1), pp.214~229 (2015)
- R. R. Harrison, "A low-power integrated circuit for a wireless 100-electrode neural recording system", IEEE J. Solid-State Circuits, 42(1), pp.123~133 (2007)
- W.-M. Chen, "A fully integrated 8-channel close-loop neural-prosthetic CMOS SoC for real-time epileptic seizure control", IEEE J. Solid State Circuits, 49(1), pp.232~247 (2014)
- J. Zhao, "An integrated wireless power management and data telemetry IC for high-compliance-voltage electrical stimulation applications", IEEE Trans. on Biomed. Circuits and Syst., 10(1), pp.113~124 (2016)
- A. Abdi, "A high-voltage generation charge pump IC using input voltage modulated regulation for neural implant devices", Circuits and Systems II, IEEE Transactions, 66(3), pp.342~346 (2019)
- A. Abdi, "A bidirectional neural interface CMOS analog front-end IC with embedded isolation switch for implantable devices", Elsevier Microelectronics J., 58(12), pp.70~75 (2016)
- J. F. Dickson, "On-chip high-voltage generation in MNOS integrated circuits using an improved voltage multiplier technique", IEEE J. of Solid-State Circuits, 3, pp.374~378 (1976)
- J. Cockcroft, "Production of high velocity positive ions", Proc. Royal Society of London, Series A, 136, pp.619~630 (1932)
- J.-H. Tsai, "A 1 V input, 3 V-to-6 V output, 58%-efficient integrated charge pump with a hybrid topology for area reduction and an improved efficiency by using parasitics", IEEE J. of Solid-State Circuits, 50(11), pp.2533~2548 (2015)
- R. Pelliconi, "Power efficient charge pump in deep submicron standard CMOS technology", IEEE J. of Solid-State Circuits, 38(6), pp.1068~1071 (2003)