Abstract: A ferrite module matrix driver circuit comprises a controller, a charging circuit, a plurality of ferrite modules arranged in the form of a matrix, a plurality of first switches driven by the controller, a plurality of second switches driven by the controller, and one or more comparators coupled to the charging circuit and the controller. Each switch in the first plurality of switches connects a respective column of said plurality of ferrite modules to the charging circuit. Each switch in the second plurality of switches connects a respective row of said plurality of ferrite modules to ground. And, after a specific voltage has been reached by the charging circuit, one of the comparators signals to the controller, which in turn selects a specific ferrite module to be polarized by driving one of the plurality of first switches and one of the plurality of second switches.

Abstract: A protection switching circuit includes a plurality of ferrite modules arranged in a matrix, wherein the matrix includes a plurality of columns and a plurality of rows. The protection switching circuit further includes a primary control module configured to select a specific ferrite module to be polarized and a redundant control module configured to select a specific ferrite module to be polarized, wherein the redundant control module is used when the primary control module is not used. The protection switching circuit further includes a plurality of first switches, wherein the plurality of first switches couples the plurality of columns of the matrix to a first and second charging circuit. The protection switching circuit further includes a plurality of second switches, wherein the plurality of second switches are organized into pairs, wherein each pair in the plurality of second switches couples a respective row of the matrix to a reference potential.

Abstract: In one embodiment, a system comprises: a first circulator module comprising a first plurality of circulators including a first circulator; a second circulator module comprising a second plurality of circulators including a second circulator, wherein an interconnection port connects the first and second circulator modules, each circulator in the first and second plurality of circulators comprises: an internal cavity; a plurality of ports extending from the internal cavity, wherein at least one port in the plurality of ports connects the circulator to another circulator; and at least one ferrite element disposed in the internal cavity and including at least one aperture; the system further comprising: a control wire, respective portions of the control wire being disposed in the at least one aperture of the at least one ferrite element of the first circulator and the at least one aperture of the at least one ferrite element of the second circulator.

Abstract: Systems and methods for reducing communications interruptions in redundancy switching events are provided. In certain embodiments, a method for switching communication paths through a circulator network includes identifying a first failed component, wherein the first failed component is connected to a first communication path, wherein the multiple components includes standby components that are not coupled to communication paths and active components that are coupled to communication paths, wherein a standby component that has not previously failed and an active component that has not experienced a failure are operable components. Further, the method includes switching circulators in the circulator network such that a first operable component is connected to the first communication path and the failed component is disconnected from the first communication path, wherein the communication paths other than the first communication path are disrupted for less than or equal to a single switching event.

Abstract: In one embodiment, a system comprises: a first circulator module comprising a first plurality of circulators including a first circulator; a second circulator module comprising a second plurality of circulators including a second circulator, wherein an interconnection port connects the first and second circulator modules, each circulator in the first and second plurality of circulators comprises: an internal cavity; a plurality of ports extending from the internal cavity, wherein at least one port in the plurality of ports connects the circulator to another circulator; and at least one ferrite element disposed in the internal cavity and including at least one aperture; the system further comprising: a control wire, respective portions of the control wire being disposed in the at least one aperture of the at least one ferrite element of the first circulator and the at least one aperture of the at least one ferrite element of the second circulator.

Abstract: In at least one embodiment, a circulator module comprises circulators. Each circulator comprises: an internal cavity; ports extending from the internal cavity wherein at least one port connects the circulator to another circulator; and a ferrite element disposed in the internal cavity, the ferrite element including an aperture. The circulator module further comprises a first control wire, wherein a first portion of the first control wire is disposed in an aperture of the ferrite element of the first circulator and wherein a second portion of the first control wire is disposed in an aperture of the ferrite element of the second circulator; and, a second control wire, wherein a first portion of the second control wire is disposed in an aperture of the ferrite element of the first circulator and wherein the second control wire is not disposed in an aperture of the ferrite element of the second circulator.

Abstract: In at least one embodiment, a circulator module comprises circulators. Each circulator comprises: an internal cavity; ports extending from the internal cavity wherein at least one port connects the circulator to another circulator; and a ferrite element disposed in the internal cavity, the ferrite element including an aperture. The circulator module further comprises a first control wire, wherein a first portion of the first control wire is disposed in an aperture of the ferrite element of the first circulator and wherein a second portion of the first control wire is disposed in an aperture of the ferrite element of the second circulator; and, a second control wire, wherein a first portion of the second control wire is disposed in an aperture of the ferrite element of the first circulator and wherein the second control wire is not disposed in an aperture of the ferrite element of the second circulator.

Abstract: A protection switching circuit includes a plurality of ferrite modules arranged in a matrix, wherein the matrix includes a plurality of columns and a plurality of rows. The protection switching circuit further includes a primary control module configured to select a specific ferrite module to be polarized and a redundant control module configured to select a specific ferrite module to be polarized, wherein the redundant control module is used when the primary control module is not used. The protection switching circuit further includes a plurality of first switches, wherein the plurality of first switches couples the plurality of columns of the matrix to a first and second charging circuit. The protection switching circuit further includes a plurality of second switches, wherein the plurality of second switches are organized into pairs, wherein each pair in the plurality of second switches couples a respective row of the matrix to a reference potential.

Abstract: A ferrite module matrix driver circuit comprises a controller, a charging circuit, a plurality of ferrite modules arranged in the form of a matrix, a plurality of first switches driven by the controller, a plurality of second switches driven by the controller, and one or more comparators coupled to the charging circuit and the controller. Each switch in the first plurality of switches connects a respective column of said plurality of ferrite modules to the charging circuit. Each switch in the second plurality of switches connects a respective row of said plurality of ferrite modules to ground. And, after a specific voltage has been reached by the charging circuit, one of the comparators signals to the controller, which in turn selects a specific ferrite module to be polarized by driving one of the plurality of first switches and one of the plurality of second switches.

Abstract: A controller for a hot melt adhesive dispensing system has a main circuit board and power modules which are removably received on a controller enclosure. The power modules are directly couplable with the main board and with cord sets from heated hoses of the dispensing system, eliminating the need for wiring harnesses to be routed between these components. Accordingly, the main board and power modules may be readily removed and replaced in the field to permit efficient servicing and modification of the system to accommodate the needs of various applications.

Abstract: A controller for a hot melt adhesive dispensing system has a main circuit board and power modules which are removably received on a controller enclosure. The power modules are directly couplable with the main board and with cord sets from heated hoses of the dispensing system, eliminating the need for wiring harnesses to be routed between these components. Accordingly, the main board and power modules may be readily removed and replaced in the field to permit efficient servicing and modification of the system to accommodate the needs of various applications.