Abstract: At least one example embodiment provides a system comprising a three-phase direct-current-to-direct-current converter (DC-DC converter) including a three-phase primary converter coupled to a three-phase secondary converter via at least one transformer; and a controller configured to cause the system to, obtain a load curve based on an operational load ratio or percentage of the three-phase DC-DC converter, the load curve associated with at least one phase of the primary converter and the secondary converter, and adjust or maintain a modulation frequency of the at least one phase of the primary converter and the secondary converter consistent with an operation point on the obtained load curve.

Abstract: A system and method of fault detection based on a detailed waveform analysis is presented for transient and steady-state fault operation of 3-? DAB converter. Main symptoms of the converter during normal and fault conditions have been identified and a unique pattern in DC bias of phase currents under fault mode is noted. The logic-based fault diagnosis scheme is used to detect the fault and identify the faulty transistor.

Abstract: Provided is a condenser for use in an electronic assembly. The condenser includes a first vertical wall extending in a vertical direction, the first vertical wall defining a first plurality of vertical condensation channels within the first vertical wall, a second vertical wall extending in the vertical direction, the second vertical wall defining a second plurality of vertical condensation channels within the second vertical wall, and a first plurality of fins extending in the vertical direction, each of the first plurality of fins connected to the first vertical wall, the second vertical wall or both the first vertical wall and the second vertical wall.

Abstract: Lightweight high-efficiency, high temperature electric drive system is disclosed herein. An example electric drive system including an electric motor including an output shaft. The example electric drive system including power electronics electrically coupled to the electric motor, wherein the power electronic include an inverter. The example electric drive system including a gearbox coupled to the output shaft. The example electric drive system including a first heat exchanger coupled to a surface of the electric motor, the first heat exchanger including coolant. The example electric drive system including a second heat exchanger coupled to a surface of the power electronics, the second heat exchanger including the coolant.

Abstract: A system and method for controlling a dual active bridge based DC/DC converter. A controller implements a startup control scheme and DC bus pre-charge routine to prevent damage to the converter upon startup. During startup of the converter, the startup control process can be used to prevent excessive phase-shift and the DC bus pre-charge routine adjusts the pulse width modulated duty cycle by increasing the dead time between signals, resulting in a decreased DC bus capacitor.

Abstract: Provided is an evaporator stack. The evaporator stack may be used in power-dense electronic assemblies. The evaporator stack includes a lower floor including at least one mounded portion, and an enclosure surrounding the lower floor, wherein a height of the enclosure is greater than a height of the at least one mounded portion, the at least one mounded portion extending between two walls of the enclosure.

Abstract: Lightweight high-efficiency, high temperature electric drive system is disclosed herein. An example electric drive system including an electric motor including an output shaft. The example electric drive system including power electronics electrically coupled to the electric motor, wherein the power electronic include an inverter. The example electric drive system including a gearbox coupled to the output shaft. The example electric drive system including a first heat exchanger coupled to a surface of the electric motor, the first heat exchanger including coolant. The example electric drive system including a second heat exchanger coupled to a surface of the power electronics, the second heat exchanger including the coolant.

Abstract: In at least one example embodiment, a computer system includes a memory storing instructions and at least one processor configured to executed the instructions to cause the computer system to obtain sensor data, the sensor data corresponding to measurements of at least one component of an electric powertrain system of at least one vehicle and generate a first digital twin based on the obtained sensor data, the first generated twin associated with a type of the at least one vehicle.

Abstract: Design and packaging of wide bandgap (WBG) power electronic power stages are disclosed herein. An example apparatus includes a first printed circuit board (PCB) including: a first voltage phase circuit cluster; a second voltage phase circuit cluster; and a cluster of traces, the cluster of traces routed substantially perpendicular to the second voltage phase circuit cluster; a second PCB positioned below the first PCB; and a connector to connect the first PCB to the second PCB, the connector electrically coupled to the first voltage phase circuit cluster by the cluster of traces.

Abstract: Design and packaging of wide bandgap (WBG) power electronic power stages are disclosed herein. An example apparatus includes a first printed circuit board (PCB) including: a first voltage phase circuit cluster; a second voltage phase circuit cluster; and a cluster of traces, the cluster of traces routed substantially perpendicular to the second voltage phase circuit cluster; a second PCB positioned below the first PCB; and a connector to connect the first PCB to the second PCB, the connector electrically coupled to the first voltage phase circuit cluster by the cluster of traces.

Abstract: A power supply circuit for converting a first voltage to a second voltage where the first voltage is greater than the second voltage, and a power train having the same, are provided. The power supply circuit may have multiple stages and each stage of the power supply circuit may include a first circuit block configured to provide a start-up power to a second circuit block; a second circuit block configured to generate a Pulse-Width-Modulation (PWM) signal that controls a pulse duration of a transistor; a third circuit block configured to activate or deactivate the transistor based on the PWM signal; a fourth circuit block configured to reset a magnetic flux in a transformer to a zero state when the transistor is deactivated; and a fifth circuit block configured to maintain an output of a stage below a predetermined value by adjusting a voltage across the transformer.

Abstract: Provided is a condenser for use in an electronic assembly. The condenser includes a first vertical wall extending in a vertical direction, the first vertical wall defining a first plurality of vertical condensation channels within the first vertical wall, a second vertical wall extending in the vertical direction, the second vertical wall defining a second plurality of vertical condensation channels within the second vertical wall, and a first plurality of fins extending in the vertical direction, each of the first plurality of fins connected to the first vertical wall, the second vertical wall or both the first vertical wall and the second vertical wall.

Abstract: A system and method for controlling a dual active bridge based DC/DC converter. A controller implements a startup control scheme and DC bus pre-charge routine to prevent damage to the converter upon startup. During startup of the converter, the startup control process can be used to prevent excessive phase-shift and the DC bus pre-charge routine adjusts the pulse width modulated duty cycle by increasing the dead time between signals, resulting in a decreased DC bus capacitor.

Abstract: Provided is a condenser for use in an electronic assembly. The condenser includes a first vertical wall extending in a vertical direction, the first vertical wall defining a first plurality of vertical condensation channels within the first vertical wall, a second vertical wall extending in the vertical direction, the second vertical wall defining a second plurality of vertical condensation channels within the second vertical wall, and a first plurality of fins extending in the vertical direction, each of the first plurality of fins connected to the first vertical wall, the second vertical wall or both the first vertical wall and the second vertical wall.

Abstract: A system and method of fault detection based on a detailed waveform analysis is presented for transient and steady-state fault operation of 3-? DAB converter. Main symptoms of the converter during normal and fault conditions have been identified and a unique pattern in DC bias of phase currents under fault mode is noted. The logic-based fault diagnosis scheme is used to detect the fault and identify the faulty transistor.

Abstract: In accordance with one embodiment is a transformer with a core comprising a perimeter portion and central intervening portion. The central intervening portion is separated from the perimeter portion by air gaps, creating an opening on either side of the intervening portion. A primary winding and secondary winding are wound around the central intervening portion of the core. The primary winding is capable of electromagnetic interaction with the secondary winding. A pair of ferrite members arranged outward from a central axis of the central intervening portion of the core and increases a series inductance with the primary winding. In accordance with another aspect of the disclosure, each ferrite member may have an air gap associated with the core to facilitate heat dissipation from the transformer.

Abstract: Lightweight high-efficiency, high temperature electric drive system is disclosed herein. An example electric drive system including an electric motor including an output shaft. The example electric drive system including power electronics electrically coupled to the electric motor, wherein the power electronic include an inverter. The example electric drive system including a gearbox coupled to the output shaft. The example electric drive system including a first heat exchanger coupled to a surface of the electric motor, the first heat exchanger including coolant. The example electric drive system including a second heat exchanger coupled to a surface of the power electronics, the second heat exchanger including the coolant.

Abstract: Design and packaging of wide bandgap (WBG) power electronic power stages are disclosed herein. An example apparatus includes a first printed circuit board (PCB) including: a first voltage phase circuit cluster; a second voltage phase circuit cluster; and a cluster of traces, the cluster of traces routed substantially perpendicular to the second voltage phase circuit cluster; a second PCB positioned below the first PCB; and a connector to connect the first PCB to the second PCB, the connector electrically coupled to the first voltage phase circuit cluster by the cluster of traces.

Abstract: Provided is a condenser for use in an electronic assembly. The condenser includes a first vertical wall extending in a vertical direction, the first vertical wall defining a first plurality of vertical condensation channels within the first vertical wall, a second vertical wall extending in the vertical direction, the second vertical wall defining a second plurality of vertical condensation channels within the second vertical wall, and a first plurality of fins extending in the vertical direction, each of the first plurality of fins connected to the first vertical wall, the second vertical wall or both the first vertical wall and the second vertical wall.

Abstract: Provided is an evaporator stack. The evaporator stack may be used in power-dense electronic assemblies. The evaporator stack includes a lower floor including at least one mounded portion, and an enclosure surrounding the lower floor, wherein a height of the enclosure is greater than a height of the at least one mounded portion, the at least one mounded portion extending between two walls of the enclosure.