公开(公告)号：US20170074908A1

公开(公告)日：2017-03-16

申请号：US14854443

申请日：2015-09-15

Applicant: QUALCOMM Incorporated

Inventor： Saeed Nejatali ,  Seong Heon Jeong ,  Francesco Carobolante ,  David Fern

IPC: G01R15/20 ,  H02J7/04 ,  H02J7/02

CPC classification number: G01R15/20 ,  G01R15/181 ,  G01R19/0092 ,  G01R33/0076 ,  H02J7/025 ,  H02J7/04 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0081

Abstract: A current sensor may include a sense element disposed proximate a conductor. The current sensor may be configured to couple to a first magnetic field generated at the conductor when current flows in the conductor. An output electrically connected to the sense element can produce a signal that is representative of the flow of current in the conductor. The sense element may be oriented in a plane parallel to magnetic field lines of a second magnetic field generated by a load connected to the conductor.

Abstract translation: 电流传感器可以包括设置在导体附近的感测元件。 电流传感器可以被配置为当电流在导体中流动时耦合到在导体处产生的第一磁场。 电连接到感测元件的输出可以产生代表导体中的电流的信号。 感测元件可以在与由连接到导体的负载产生的第二磁场的磁场线平行的平面中取向。

公开(公告)号：US20170254841A1

公开(公告)日：2017-09-07

申请号：US15059151

申请日：2016-03-02

Applicant: QUALCOMM Incorporated

Inventor： Saeed Nejatali ,  Linda Irish ,  David Fern ,  Francesco Carobolante, II

IPC: G01R25/08

CPC classification number: G01R25/08 ,  H02J50/12

Abstract: Methods and circuitry are disclosed to produce a first signal representative of the AC voltage signal and a second signal representative of an AC current signal. The first and second signals may be combined with a clock signal to produce a third signal. A phase angle between the AC voltage signal and the AC current signal may be determined based on a pulse count indicative of how many pulses occur in the third signal over a predetermined period of time.