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Urso, A. (author), Chen, Y. (author), Staszewski, R.B. (author), Dijkhuis, Johan F. (author), Stanzione, Stefano (author), Liu, Y. (author), Serdijn, W.A. (author), Babaie, M. (author)In this paper, we propose a new scheme to directly power a 4.9-5.6GHz LC oscillator from a recursive switched-capacitor DC-DC converter. A finite-state machine is integrated to automatically adjust the conversion ratio and switching frequency of the converter such that its DC output voltage is within ±5% of the desired 1V across input voltage...journal article 2020
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A Supply Pushing Reduction Technique for LC Oscillators Based on Ripple Replication and CancellationChen, Y. (author), Liu, Yao-Hong (author), Zong, Z. (author), Dijkhuis, Johan (author), Dolmans, Guido (author), Staszewski, R.B. (author), Babaie, M. (author)In this paper, we propose a method to suppress supply pushing of an LC oscillator such that it may directly operate from a switched-mode dc-dc converter generating fairly large ripples. A ripple replication block (RRB) generates an amplified ripple replica at the gate terminal of the tail current source to stabilize the oscillator's tail...journal article 2019