US 11,757,405 B2
Oscillator circuit
Yunfang Zhou, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Apr. 29, 2022, as Appl. No. 17/733,158.
Application 17/733,158 is a continuation of application No. PCT/CN2019/114883, filed on Oct. 31, 2019.
Prior Publication US 2022/0263463 A1, Aug. 18, 2022
Int. Cl. H03B 5/08 (2006.01); H03B 5/32 (2006.01)
CPC H03B 5/08 (2013.01) [H03B 5/323 (2013.01); H03B 2201/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An oscillator circuit, comprising:
an amplifier comprising:
a first transconductance amplifier comprising:
a first input terminal; and
a first output terminal; and
a second transconductance amplifier comprising:
a second input terminal; and
a second output terminal; and
a resonator comprising:
a capacitor element comprising:
a first capacitor; and
a second capacitor; and
an inductor element comprising a tapped inductor that comprises:
a first segment of inductor comprising:
a first terminal coupled to the first input terminal;
a second terminal coupled to the first output terminal; and
a fifth terminal;
a second segment of inductor and comprising:
a third terminal coupled to the second input terminal;
a fourth terminal coupled to the second output terminal and further coupled to the first terminal using the second capacitor and
a sixth terminal,
wherein the first terminal and the fourth terminal are output terminals of the tapped inductor,
wherein the second terminal and the third terminal are tap terminals of the tapped inductor, and
wherein the fifth terminal and the sixth terminal are coupled using the first capacitor.