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    RESET MONITOR
    1.
    发明申请
    RESET MONITOR 审中-公开

    公开(公告)号：WO2020162904A1

    公开(公告)日：2020-08-13

    申请号：PCT/US2019/016749

    申请日：2019-02-06

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： LINN, Scott A. ,  GARDNER, James M.

    IPC: B41J2/045

    Abstract: An integrated circuit to drive a plurality of actuators during a non-reset operating condition is disclosed. The integrated circuit includes a reset input to receive a reset signal activated for a duration. The reset signal generates a reset condition in the integrated circuit during which the non-reset operating condition is blocked. The integrated circuit also includes a monitor circuit operably coupled to the reset input to indicate if the duration of the reset signal meets or exceeds a selected duration.

    SIGNAL MONITOR
    4.
    发明申请
    SIGNAL MONITOR 审中-公开

    公开(公告)号：WO2020162902A1

    公开(公告)日：2020-08-13

    申请号：PCT/US2019/016745

    申请日：2019-02-06

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： LINN, Scott A. ,  GARDNER, James M.

    IPC: B41J2/045

    Abstract: An integrated circuit is disclosed. The integrated circuit includes an actuator to eject a fluid in response to a fire signal. The integrated circuit also includes a monitor circuit set by the fire signal to block the fire signal to the actuator circuit after a selected duration.

    DELAY DEVICES
    5.
    发明申请
    DELAY DEVICES 审中-公开

    公开(公告)号：WO2020162901A1

    公开(公告)日：2020-08-13

    申请号：PCT/US2019/016744

    申请日：2019-02-06

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： GARDNER, James M. ,  CORRIGAN, III, George H. ,  LINN, Scott A.

    IPC: B41J2/045

    Abstract: An integrated circuit to drive a plurality of fluid actuators is disclosed. The integrated circuit analog delay circuits coupled in series and to a fire input to receive a fire signal in succession. Each analog delay circuit receives the fire signal and, after a delay, provides the fire signal via an output to a corresponding fluid actuator. A bias circuit is coupled to each of the of analog delay circuits. The bias circuit provides a bias signal to control the delay.

    DELAY DEVICES
    6.
    发明申请
    DELAY DEVICES 审中-公开

    公开(公告)号：WO2020162900A1

    公开(公告)日：2020-08-13

    申请号：PCT/US2019/016742

    申请日：2019-02-06

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： ROSSI, John ,  LINN, Scott A. ,  GARDNER, James M.

    IPC: B41J2/045

    Abstract: A method for use with a series of analog delay circuits to drive a plurality of actuators with a fire signal is disclosed. A bias signal to affect a selected delay in the analog delay circuits is disabled. The fire signal is provided through the series of analog delay circuits with the bias signal disabled.

    FLUIDIC DIE
    7.
    发明申请
    FLUIDIC DIE 审中-公开

    公开(公告)号：WO2019013792A1

    公开(公告)日：2019-01-17

    申请号：PCT/US2017/041835

    申请日：2017-07-13

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： ANDERSON, Daryl E. ,  GARDNER, James M. ,  MARTIN, Eric

    IPC: B41J2/14 ,  B41J29/38

    Abstract: A fluidic die may include an array of fluid actuators comprising a first set of fluid actuators and a second set of fluid actuators. The fluidic die may further include a first power line connected to the first set of fluid actuators, a second power line connected to the second set of fluid actuators and a third power line connected to the first set of fluid actuators.

    VOLTAGE REGULATOR FOR LOW SIDE SWITCH GATE CONTROL
    8.
    发明申请
    VOLTAGE REGULATOR FOR LOW SIDE SWITCH GATE CONTROL 审中-公开

    公开(公告)号：WO2019013788A1

    公开(公告)日：2019-01-17

    申请号：PCT/US2017/041785

    申请日：2017-07-12

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： LINN, Scott A. ,  KORTHUIS, Vincent C. ,  GARDNER, James M.

    IPC: B41J2/05 ,  B41J2/14

    Abstract: A fluidic die may include a fluid actuator comprising an electrical resistor, a power node to supply electrical current to the resistor to drive the fluid actuator, a low side switch transistor connected to a ground node and having a gate to control the flow of electrical current through the resistor, a voltage regulator to receive electrical power from the power node and to output a predetermined voltage and a level shifter to control to output a low side switch transistor gate drive voltage using the predetermined voltage and based upon control signals to control the gate to control fluid displacement by the fluid actuator. The predetermined voltage is greater than a voltage of the control signals and is independent of a resistance of the ground node.

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