Abstract: Devices and systems for bus duct, busbars, and busways for high-amperage applications are described. An example assembly may include a first conductor assembly. The assembly also includes two or more electrical bar trunks. The two or more electrical bar trunks are each either a distribution bar or a transportation bar. The two or more electrical bar trunks are electrically connected to the first conductor assembly at a first end of each of the two or more electrical bar trunks. The assembly further includes a second conductor assembly. Each of the two or more electrical bar trunks are electrically connected to the second conductor assembly at a second end of each of the two or more electrical bar trunks.

Abstract: A power transistor age detection circuit that allows for end-of-life detection of a power transistor. The circuit includes the power transistor and a comparator. During a testing phase, a test current may be passed through the power transistor while on, thus inducing the input voltage at the input node of the power transistor due to its on-resistance. The comparator then compares an age test voltage that depends on the input voltage present on the input node of the power transistor against a reference voltage provided by a reference voltage source. If during the testing phase, the power transistor has aged significantly to the extent that the input voltage present at the power transistor has increased to some proportion of the reference voltage, the comparator will output the end-of-life indication signal, indicating that the power transistor has reached or is approaching its end-of-life state.

Abstract: A computer-implemented method of determining when a windrow of crop is ready to be baled. A sensor embedded in or passing over the windrow senses a characteristic of the windrow associated with a moisture content of the windrow and generates corresponding sensor data. A processing element analyzes the sensor data to determine whether the windrow is ready to be baled and provides an alert when the windrow is ready to be baled.

Abstract: A power transistor circuit suppling an internal voltage to an internal voltage supply node. The power transistor circuit includes external terminals, to each of which signals and/or voltages are applied, for each of the input node, output node and control node of the power transistor. The power transistor circuit includes the power transistor, a current draw transistor, a first diode connected between an external control terminal and the internal voltage supply node, and a second diode connected between the current draw transistor output node and the internal voltage supply node. The power transistor circuit includes a charge pump that receives power from the internal voltage supply node and outputs a voltage to the control node of the current draw transistor. In operation, the internal voltage supply node receives power from the external control terminal via the first diode, or an external input terminal via the current draw transistor and the second diode.

Abstract: A voltage supply circuit that generates a voltage on a voltage supply node. The voltage supply circuit includes an adjustable capacitor, an alternating voltage source, a charge source, and an adjusting circuit. When the alternating voltage on the second capacitor terminal transitions low, the voltage on the first capacitor terminal also becomes low, and the charge source provides charge to the first capacitor terminal of the adjustable capacitor. When the alternating voltage on the second capacitor terminal transitions high, the voltage on the first capacitor terminal also becomes high, and charge is thereby pumped from the first capacitor terminal to the voltage supply node. The adjusting circuit periodically samples the voltage on the voltage supply node, and adjusts the capacitance of the adjustable capacitor to increase or decrease that voltage.

Abstract: A power transistor circuit suppling an internal voltage to an internal voltage supply node. The power transistor circuit includes external terminals, to each of which signals and/or voltages are applied, for each of the input node, output node and control node of the power transistor. The power transistor circuit includes the power transistor, a current draw transistor, a first diode connected between an external control terminal and the internal voltage supply node, and a second diode connected between the current draw transistor output node and the internal voltage supply node. The power transistor circuit includes a charge pump that receives power from the internal voltage supply node and outputs a voltage to the control node of the current draw transistor. In operation, the internal voltage supply node receives power from the external control terminal via the first diode, or an external input terminal via the current draw transistor and the second diode.

Abstract: A current sense circuit that allows for accurate sensing of a power current that flows through a power transistor as the power transistor ages. The circuit includes the power transistor, a sense transistor and a pull-up component. The control nodes of the power transistor and the sense transistor are connected, causing the power transistor and sense transistor to be on or off simultaneously. The pull-up component is connected between the input node of the power transistor and the input node of the sense transistor. When power is provided to the pull-up component, and when each of the power transistor and sense transistor are off, the pull-up component forces a voltage present at the sense transistor input node to be approximately equal to a voltage present at the power transistor input node, causing the sense and power transistors to age together.

Abstract: A chip brush assembly includes a main body defining longitudinal and transverse axes defining a plane. The body has a central portion extending in the plane and at least two slots extend therein. At least one central shaft passageway extends therethrough parallel to the transverse axis. The body has a first end portion extending in the plane and away from the central portion parallel to the transverse axis and has at least one first end shaft passageway extending parallel to the longitudinal axis. The body has a second end portion extending away from the central portion askew to the plane and has at least one second end shaft passageway extending askew to the plane. At least two magnetic feet assemblies are retained in the at least two slots respectively. At least one brush shaft with a chip brush is disposed in at least one of the shaft passageways.

Abstract: A chip brush assembly includes a main body defining longitudinal and transverse axes defining a plane. The body has a central portion extending in the plane and at least two slots extend therein. At least one central shaft passageway extends therethrough parallel to the transverse axis. The body has a first end portion extending in the plane and away from the central portion parallel to the transverse axis and has at least one first end shaft passageway extending parallel to the longitudinal axis. The body has a second end portion extending away from the central portion askew to the plane and has at least one second end shaft passageway extending askew to the plane. At least two magnetic feet assemblies are retained in the at least two slots respectively. At least one brush shaft with a chip brush is disposed in at least one of the shaft passageways.

Abstract: The biasing of one or more field plates of a high electron mobility transistor (a HEMT) with a non-zero voltage to thereby affect the electric field profile of the HEMT. The non-zero voltage may be a constant DC voltage, or perhaps may be a voltage that changes over time. The use of a non-zero voltage allows for greater ability to regulate and reduce the electric field occurring in the semiconductor channel region, especially at the field plate. Further, when the electric field occurring at the field plate is reduced, the overall size of the HEMT can also be reduced as compared to applying a zero voltage to the field plate. Alternatively, or in addition, applying a non-zero voltage to the field plate allows the voltage levels handled by the HEMT to be increased as compared to simply grounding the field plate.

Abstract: A knotter assembly (40) is operable to produce two successive knots (70,68) in a pair of strands of binding material during one full operating cycle of the knotter assembly to secure a formed bale. The knotter assembly includes a billhook (82) configured to perform at least a first full rotation around its rotation axis during formation of a first (70) of the knots and a second full rotation around its rotation axis (228) during formation of a second (68) of the knots. The knotter assembly includes a twine holder (87) and a cutter (94) co-operating with the twine holder (87) for severing the strands during formation of the first one of the successive knots. The knotter assembly (40) includes twine discs having a plurality of notches (200) spaced around the outer circumference. the plurality of notches (200) including a first set of notches having a first shape and a second set of notches having a second shape different than the first shape.

Abstract: An ejection chute for an agricultural baler has an ejection chute that includes a channel having a base wall and first and second side walls extending upwards from either side of the base wall, and in which a region of the base wall is provided with a first window. Various deposit mechanisms are provided for controlling movement of a formed bale through the first window.

Abstract: A system and method for controlling operation of one or more controllable components of an agricultural baler. A deposit strategy is determined. One or more operational components associated with the baler are controlled in dependence on the determined deposit strategy to control the deposit of one or more formed bales in accordance with the determined deposit strategy.

Abstract: A twine tension monitoring apparatus is disclosed comprising a twine tension monitoring portion and a signalling portion. The twine tension monitoring portion includes a laterally extending finger moveable about a horizontally extending axis between a first position and a second position, in which the first position corresponds to a low tension condition and the second position corresponds to a tensioned condition. The signalling portion provides a signal indicating the position of the laterally extending finger and so indicates the tension being monitored.

Abstract: A sensor arrangement located on a baler for detecting rotation of a dispensing reel of wrapping material and including a rotary element having a textured surface and a sensor mounted on a displaceable mounting bracket wherein the rotary element is rotated by the dispensing reel during baling.

Abstract: A duckbill assembly for a round baler is disclosed including first and second opposed elongate plates, the opposed elongate plates being directed towards one another so as to grip a portion of a wrapping material between the opposed elongate plates, wherein a portion of the first of the opposed elongate plates is formed of a manually displaceable material. This has as an advantage that the act of threading wrapping material into and through the duckbill assembly simply entails pulling the manually displaceable portion away from the opposing elongate plate, and dropping the wrapping material between the two elongate plates.

Abstract: A round baler having a baling chamber, a wrapping material reservoir, a feed apparatus having an actuator, the feed apparatus configured to convey a wrapping material from the wrapping material reservoir to the baling chamber, a cutting apparatus moveable between a retracted position allowing free movement of the wrapping material and an advanced position to cut the wrapping material, and a braking apparatus for applying a braking force on a roll of wrapping material installed in the wrapping material reservoir, and an actuator for controlling operation of the feed apparatus and the cutting apparatus. The round baler further comprises a tensioning element connecting the actuator to the braking apparatus to control a down force exerted on the roll of wrapping material and so control the tension in the wrapping material.

Abstract: A system and method for monitoring bale growth rate and mat thickness and controlling baler operations according to the monitoring of bale growth rate and mat thickness. A baler includes sensors and a control system that uses sensor output as input for its processes. The controller is configured to determine a value of a physical attribute in an operation of a baler based on data received from a sensor. Also, the controller is configured to estimate a mat thickness or a bale growth rate based on the determined value of the physical attribute. The controller is also configured to control an operation of the baler or an operation of a tow vehicle, configured to tow the baler, based on the estimated mat thickness or bale growth rate.