公开(公告)号：US20190013779A1

公开(公告)日：2019-01-10

申请号：US15641581

申请日：2017-07-05

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Wookang JIN ,  Sungwon YUN ,  Chan SON

IPC: H03B5/24

CPC classification number: H03B5/24 ,  H03B2200/0038 ,  H03B2200/0048 ,  H03B2200/0062 ,  H03B2200/0064 ,  H03B2201/038 ,  H03K3/0231

Abstract: An oscillator circuit includes an oscillator having a source node and a sink node, the oscillator being configured to generate a pulse signal having an output voltage that corresponds to a charging or discharging operation of a capacitor, a first bias current generating circuit coupled to the source and the sink nodes of the oscillator and configured to supply a first bias current to the oscillator, the first bias current being adjustable, and a second bias current generating circuit coupled to the source and the sink nodes of the oscillator and configured to supply a second bias current to the oscillator, the second bias current being adjustable. The first bias current and the second bias current are used to tune a frequency range of the oscillator.