公开(公告)号：US20170293314A1

公开(公告)日：2017-10-12

申请号：US15250064

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Chao Song ,  Kevin Wang

IPC: G05F3/26

CPC classification number: G05F3/267 ,  G05F3/262

Abstract: A current mirroring circuit including: a first portion having a first resistor and a first transistor, the first transistor having a control terminal coupled to a control terminal of a first diode-connected transistor; and a second portion having a second resistor and a second transistor, the second transistor having a control terminal coupled to a control terminal of a second diode-connected transistor, the first portion being in electrical communication with a first power level and the second portion being in electrical communication with a second power level, the first portion being coupled to the second portion.

公开(公告)号：US09851740B2

公开(公告)日：2017-12-26

申请号：US15250064

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Chao Song ,  Kevin Wang

IPC: G01F1/10 ,  G05F3/08 ,  G05F3/20 ,  G05F3/26

CPC classification number: G05F3/267 ,  G05F3/262

Abstract: A current mirroring circuit including: a first portion having a first resistor and a first transistor, the first transistor having a control terminal coupled to a control terminal of a first diode-connected transistor; and a second portion having a second resistor and a second transistor, the second transistor having a control terminal coupled to a control terminal of a second diode-connected transistor, the first portion being in electrical communication with a first power level and the second portion being in electrical communication with a second power level, the first portion being coupled to the second portion.

公开(公告)号：US20170257065A1

公开(公告)日：2017-09-07

申请号：US15191350

申请日：2016-06-23

Applicant: QUALCOMM Incorporated

Inventor： Kevin Wang ,  Chao Song ,  Shyam Sivakumar

IPC: H03B5/24

CPC classification number: H03B5/24 ,  H03B5/26 ,  H03K3/03 ,  H03K3/0315 ,  H03K5/065 ,  H03K5/1252 ,  H03L7/099

Abstract: An oscillator circuit having a programmable output frequency may include a first delay section having a negative gain and a variable delay that is set by a control signal provided to the first delay section. A second delay section having a negative gain and a fixed delay may be connected in series with the first delay section. The oscillator circuit may include an output comprising the output of the second delay section having a frequency that is dependent on the delay of the first delay section and the delay of second delay section.

公开(公告)号：US09755575B1

公开(公告)日：2017-09-05

申请号：US15191350

申请日：2016-06-23

Applicant: QUALCOMM Incorporated

Inventor： Kevin Wang ,  Chao Song ,  Shyam Sivakumar

IPC: H03K3/03 ,  H03B5/24 ,  H03L7/099 ,  H03K5/1252 ,  H03K5/06

CPC classification number: H03B5/24 ,  H03B5/26 ,  H03K3/03 ,  H03K3/0315 ,  H03K5/065 ,  H03K5/1252 ,  H03L7/099

Abstract: An oscillator circuit having a programmable output frequency may include a first delay section having a negative gain and a variable delay that is set by a control signal provided to the first delay section. A second delay section having a negative gain and a fixed delay may be connected in series with the first delay section. The oscillator circuit may include an output comprising the output of the second delay section having a frequency that is dependent on the delay of the first delay section and the delay of second delay section.