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    Electric vehicle supply equipment and a method of determining a state of a contactor in electric vehicle supply equipment
    2.
    发明授权
    Electric vehicle supply equipment and a method of determining a state of a contactor in electric vehicle supply equipment 有权

    公开(公告)号：US10150374B2

    公开(公告)日：2018-12-11

    申请号：US15337762

    申请日：2016-10-28

    申请人： EATON CORPORATION

    发明人： Tom Xiong ,  Jackie Hao ,  Andrew Yang ,  Darron Kirby Lacey

    IPC分类号： B60L11/18 ,  B60L3/00

    摘要： Electric vehicle supply equipment includes a contactor having a first set of contacts and a second set of contacts, an amplifier circuit electrically connected to the load side output of the first set of contacts via a first connection and to the load side output of the second set of contacts via a second connection, the amplifier circuit being structured to amplify a voltage difference between a first voltage at the first connection and a second voltage at the second connection, and control electronics structured to compare the amplified voltage difference to a threshold voltage and to determine whether the first and second sets of contacts are closed based on the comparison between the amplified voltage difference and the threshold voltage.

    Wide range AC/DC converter circuit
    3.
    发明授权
    Wide range AC/DC converter circuit 有权

    公开(公告)号：US09973106B2

    公开(公告)日：2018-05-15

    申请号：US15249709

    申请日：2016-08-29

    申请人： EATON CORPORATION

    发明人： Tom Xiong ,  Kevin Zhong

    IPC分类号： H02M3/335 ,  H02M7/06 ,  H02M7/217

    CPC分类号： H02M7/06 ,  H02M3/33592 ,  H02M7/217 ,  H02M7/2176

    摘要： An electric circuit for use with an AC power source includes a diode electrically connected to a line input from the AC power source, a transistor having a gate, a drain, and a source, wherein the drain is electrically connected to the diode, a zener diode electrically connected between the gate and the source of the transistor, a resistor electrically connected between the drain of the transistor and a neutral input from the AC power source, and a capacitor electrically connected in parallel with the resistor.

    Pilot signal detection and indication unit and electric vehicle charging system including the same
    6.
    发明授权
    Pilot signal detection and indication unit and electric vehicle charging system including the same 有权

    公开(公告)号：US10661673B2

    公开(公告)日：2020-05-26

    申请号：US15384510

    申请日：2016-12-20

    申请人： EATON CORPORATION

    发明人： Andrew Yang ,  Tom Xiong ,  Jerry Zhang ,  Lily Du ,  Harry Zhang

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

    摘要： 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.

    DEVICES AND METHODS FOR FAULT INDICATION CONNECTOR CIRCUITS
    8.
    发明申请
    DEVICES AND METHODS FOR FAULT INDICATION CONNECTOR CIRCUITS 审中-公开

    公开(公告)号：US20190097415A1

    公开(公告)日：2019-03-28

    申请号：US15716584

    申请日：2017-09-27

    申请人： Eaton Corporation

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

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

    摘要： 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.

    Dimmer switch and dimmer switch system with secondary switch
    9.
    发明授权
    Dimmer switch and dimmer switch system with secondary switch 有权

    公开(公告)号：US10123391B1

    公开(公告)日：2018-11-06

    申请号：US15719068

    申请日：2017-09-28

    申请人： EATON CORPORATION

    发明人： Tom Xiong ,  Kevin Zhong ,  Lin Yang

    IPC分类号： H05B37/02 ,  H01H9/54 ,  H02M1/32 ,  H02M3/26

    摘要： A dimmer switch system electrically connected between a power source and a load includes a primary housing including a primary switch actuatable by a user, a processor structured to change a state of the dimmer switch based on actuation of either the primary switch or the secondary switch, and a secondary switch isolation circuit. The dimmer switch system also includes a secondary housing including a secondary switch actuatable by the user and being electrically connected to the power source. The secondary switch isolation circuit is electrically connected between the secondary switch and the processor, the secondary switch isolation circuit including a transistor electrically coupled between the power source and the processor and being structured to provide impedance between the power source and the processor. The secondary switch isolation circuit is structured to provide a signal to the processor based on a state of the secondary switch.

    CONTROL CIRCUITS FOR SELF-POWERED SWITCHES AND RELATED METHODS OF OPERATION
    10.
    发明申请
    CONTROL CIRCUITS FOR SELF-POWERED SWITCHES AND RELATED METHODS OF OPERATION 审中-公开

    公开(公告)号：US20180226793A1

    公开(公告)日：2018-08-09

    申请号：US15427951

    申请日：2017-02-08

    申请人： Eaton Corporation

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

    IPC分类号： H02J1/00

    CPC分类号： H01H9/168 ,  H01H23/143 ,  H01H2239/076 ,  H01H2300/03

    摘要： 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.