公开(公告)号：US10770929B2

公开(公告)日：2020-09-08

申请号：US16282982

申请日：2019-02-22

Applicant: KOLLMORGEN CORPORATION

Inventor： George B. Yundt ,  Robert Pearce

IPC: H02J50/80 ,  H01F38/14 ,  H02J50/10 ,  H01F27/29 ,  H04B3/54 ,  H04L12/10

Abstract: A device for communicating and providing power over a cable having at least two conductors comprises an inductor having two secondary windings and one primary winding, and a transceiver coupled to the primary winding of the inductor, the two secondary windings of the inductors being coupled to two of the at least two conductors of the cable. Further, a voltage signal provided by the secondary windings of the inductors to the conductors varies symmetrically from an average potential. The inductor of the device can also comprise two primary windings connected in series and two secondary windings connected in series, the secondary windings also connected to two of the at least two conductors in the cable, wherein the voltage signal provided to the two conductors from the secondary windings varies symmetrically from an average potential.

公开(公告)号：US10374468B2

公开(公告)日：2019-08-06

申请号：US15274517

申请日：2016-09-23

Applicant: KOLLMORGEN CORPORATION

Inventor： George B. Yundt ,  Robert Pearce

IPC: H04B3/54 ,  H02J50/80 ,  H01F38/14 ,  H02J50/10 ,  H01F27/29 ,  H04L12/10

Abstract: A device for communicating and providing power over a cable having at least two conductors comprises a first inductor having a primary and a secondary winding, a second inductor having a primary and a secondary winding, the primary winding of the second inductor being coupled at one end to the primary winding of the first inductor, each of the secondary windings of the first and second inductors being coupled to one of the at least two conductors in the cable. The device further includes a transceiver coupled to the primary windings of the first and second inductors, wherein the first inductor is coupled to local ground potential, in a manner that varies the potential of each of the said conductors symmetrically from an average potential.

公开(公告)号：US10520050B2

公开(公告)日：2019-12-31

申请号：US15411759

申请日：2017-01-20

Applicant: KOLLMORGEN CORPORATION

Inventor： Robert Pearce ,  George B. Yundt ,  Daniel Kouba

IPC: F16D63/00 ,  H01F7/06 ,  H02P3/04 ,  H02P29/04 ,  F16D121/20

Abstract: A control circuit configured to control an electromechanical brake is provided. The control circuit includes: a switching regulator configured to control a magnitude of voltage applied to a brake coil of the electromechanical brake; wherein said switching regulator includes at least one semiconductor switch, one diode, one capacitor and one inductor; the control circuit is configured such that, in operation, at least one signal from a process sub-system specifies the magnitude of the voltage for the brake coil; and at least one brake applying control signal from a safety sub-system can cause the brake coil voltage to be reduced to a level low enough to apply the brake by opening a switch and each brake applying control signal from the safety sub-system has a corresponding diagnostic feedback signal to the safety sub-system that indicates the state of the corresponding switch. A method and a system are disclosed.