US 10,892,710 B2
LC oscillator powering arrangement and method of powering an LC oscillator
Yue Chen, Delft (NL); and Masoud Babaie, Pijnacker (NL)
Assigned to STICHTING IMEC NEDERLAND, Eindhoven (NL)
Filed by Stichting IMEC Nederland, Eindhoven (NL)
Filed on May 31, 2019, as Appl. No. 16/427,933.
Claims priority of application No. 18175371 (EP), filed on May 31, 2018.
Prior Publication US 2019/0372525 A1, Dec. 5, 2019
Int. Cl. H03B 5/12 (2006.01)
CPC H03B 5/1253 (2013.01) [H03B 5/1212 (2013.01); H03B 5/1228 (2013.01)] 20 Claims
OG exemplary drawing
1. An LC oscillator powering arrangement, comprising:
an LC oscillator comprising a resonant tank, wherein the LC oscillator is configured to provide an oscillating signal output;
a current source configured to supply the LC oscillator with a supply current that flows entirely into the resonant tank, wherein, the current source is controllable via a control voltage and supplied with a supply voltage subject to a supply voltage ripple; and
a replication block configured to generate a replica of the supply voltage ripple directly from the supply voltage and to overlay the replica on the control voltage.