US 11,837,995 B2
One-coil multi-core inductor-capacitor oscillator
Hao-Wei Huang, Hsinchu (TW); Song-Yu Yang, Hsinchu (TW); Ang-Sheng Lin, Hsinchu (TW); and Yi-Chien Tsai, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsin-Chu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Apr. 27, 2022, as Appl. No. 17/730,221.
Claims priority of provisional application 63/192,613, filed on May 25, 2021.
Prior Publication US 2022/0385233 A1, Dec. 1, 2022
Int. Cl. H03B 5/12 (2006.01); H01F 27/28 (2006.01); H01F 27/40 (2006.01); H03B 5/08 (2006.01)
CPC H03B 5/08 (2013.01) [H01F 27/2823 (2013.01); H01F 27/40 (2013.01); H03B 5/1265 (2013.01); H03B 5/1268 (2013.01); H03B 2200/009 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A one-coil multi-core inductor-capacitor (LC) oscillator, comprising:
a main coil, comprising:
an outer wire, coupled to a first core circuit and a second core circuit of the one-coil multi-core LC oscillator; and
a central wire, coupled between a first node and a second node of the outer wire;
wherein an outer loop formed by the outer wire corresponds to a first mode of the one-coil multi-core LC oscillator, and inner loops formed by the outer wire and the central wire correspond to a second mode of the one-coil multi-core LC oscillator; and
at least one mode suppression device, configured to suppress one of the first mode and the second mode, wherein the at least one mode suppression device comprises:
multiple resonance capacitors, configured to be coupled to the central wire for suppressing the second mode, in order to make the one-coil multi-core LC oscillator operate in the first mode.