A Periodically Refreshed Capacitive Floating Level Shifter for Conditional Switching Applications
- Authors
- Maeng, Junyoung; Shim, Minseob; Jeong, Junwon; Park, Inho; Kim, Chulwoo
- Issue Date
- 2월-2021
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Regulators; Switches; Delays; Jitter; Temperature measurement; Transistors; Leakage currents; Capacitively coupled level shifter (LS); conditional switching signal; nonperiodic signal; periodic charge refresh
- Citation
- IEEE TRANSACTIONS ON POWER ELECTRONICS, v.36, no.2, pp.1264 - 1268
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON POWER ELECTRONICS
- Volume
- 36
- Number
- 2
- Start Page
- 1264
- End Page
- 1268
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/49703
- DOI
- 10.1109/TPEL.2020.3006615
- ISSN
- 0885-8993
- Abstract
- This letter presents a periodically refreshed capacitive floating level shifter (CFLS) for applications that require a conditional switching signal. The proposed structure can generate a floating signal without additional bias voltage, and all coupling capacitors (CCs) can be simultaneously refreshed. Digital low-dropout (DLDOs) regulators are integrated to show how the leakage current from a CC affects the DLDOs that are driven by conventional and proposed CFLSs. Results are measured according to the temperature and supply voltage. With a 28-nm CMOS process, the proposed CFLS achieves a delay of 8.9 ns including the I/O buffer delay and an energy consumption of 788 fJ per cycle at V-DD = 0.9 V.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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