公开(公告)号：US20190097415A1

公开(公告)日：2019-03-28

申请号：US15716584

申请日：2017-09-27

Applicant: Eaton Corporation

Inventor： Andrew Yang ,  Tom Xiong ,  Harry Zhang ,  Alex Zhuang ,  Jerry Zhang ,  George Zhang

IPC: H02H3/32 ,  H02H3/04 ,  G01R19/165

Abstract: An electronic device that is configured to be coupled to an alternating current (AC) power unit that includes an AC input power signal is described. The electronic device includes a reference signal generator circuit that is configured to generate a reference signal based on a direct current (DC) power source, a voltage divider circuit that is configured to scale the reference signal for application to the AC input power signal to generate a divided AC input power signal, an amplifier circuit that is configured to output a fault indication signal responsive to the divided AC input power signal, and an amplifier control circuit that is coupled to the amplifier circuit and is configured to control a fault indication signal level of the fault indication signal that is output by the amplifier circuit. Related methods and computer program products are also described.

公开(公告)号：US20180226793A1

公开(公告)日：2018-08-09

申请号：US15427951

申请日：2017-02-08

Applicant: Eaton Corporation

Inventor： Harry Zhang ,  Andrew Yang ,  Alex Zhuang ,  George Zhang ,  Tom Xiong ,  Darron Kirby Lacey

IPC: H02J1/00

CPC classification number: H01H9/168 ,  H01H23/143 ,  H01H2239/076 ,  H01H2300/03

Abstract: Self-powered switches include a switch housing having an externally accessible user input member, a coil assembly, and a magnet arranged therein such that at least one of the coil assembly and the magnet move relative to each other responsive to movement of the user input member between first and second switch positions, and a control circuit held in the switch housing and coupled to first and second terminals of the coil assembly. The control circuit is configured to detect respective electrical characteristics of the first and second terminals of the coil assembly responsive to the movement of the user input member, and selectively transmit first and second wireless control signals to a remote receiver based on the respective electrical characteristics of the first and second terminals of the coil assembly, respectively. Related circuits and methods of operation are also discussed.

公开(公告)号：US20180226215A1

公开(公告)日：2018-08-09

申请号：US15427814

申请日：2017-02-08

Applicant: Eaton Corporation

Inventor： Alex Zhuang ,  George Zhang ,  Erik Jeffrey Gouhl ,  Harry Zhang ,  Andrew Yang ,  Darron Kirby Lacey ,  Tom Xiong

IPC: H01H50/02 ,  H01H50/16 ,  H01H50/44 ,  H01H49/00

CPC classification number: H01H50/021 ,  H01H49/00 ,  H01H50/16 ,  H01H50/44 ,  H01H2239/00

Abstract: Self-powered switches include an externally accessible user input member, a switch housing attached to the user input member, a permanent magnet held in the switch housing, a magnet housing held in the switch housing that is attached to the user input member, the magnet housing having a spindle that extends laterally outward from opposing sides of an upper portion of the magnet housing. The spindle is attached to the switch housing. The switches also include a magnet assembly that includes a coil and a shaft extending a distance beyond the coil held in the switch housing. A least one of the magnet assembly and permanent magnet moves in response to movement of the user input member.

公开(公告)号：US10661673B2

公开(公告)日：2020-05-26

申请号：US15384510

申请日：2016-12-20

Applicant: EATON CORPORATION

Inventor： Andrew Yang ,  Tom Xiong ,  Jerry Zhang ,  Lily Du ,  Harry Zhang

IPC: B60L53/60 ,  B60L53/16 ,  B60L53/31 ,  B60L53/18 ,  B60L53/30

Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.